diff --git a/technical-data.md b/technical-data.md
index 80fd0e752..682629f66 100644
--- a/technical-data.md
+++ b/technical-data.md
@@ -302,12 +302,6 @@ XPUB_HEADERS = {
 
 ## 6. ElectrumX Server
 
-| Component | Version |
-|-----------|---------|
-| ElectrumX (`e-x`) | **1.18.0** — [spesmilo/electrumx](https://github.com/spesmilo/electrumx) |
-| Python (container) | **3.13.5** |
-| Base Docker image | `lukechilds/electrumx:latest` (unpinned) |
-
 ### 6.1 Coin Definition (`coins_btcp.py`)
 
 Drop-in patch for `electrumx/lib/coins.py`. Place as
@@ -410,7 +404,15 @@ For `servers.json`, replace `your-server.example.com` with a real DNS name or
 public IP. The current file only documents the format; it does not configure a
 real public server.
 
-### 6.2 Docker Patch Snippet
+### 6.2 Tested Component Versions
+
+| Component | Version |
+|-----------|---------|
+| ElectrumX (`e-x`) | **1.18.0** — [spesmilo/electrumx](https://github.com/spesmilo/electrumx) |
+| Python (container) | **3.13.5** |
+| Base Docker image | `lukechilds/electrumx:latest` (unpinned) |
+
+### 6.3 Docker Patch Snippet
 
 ```dockerfile
 COPY electrumx-patch/coins_btcp.py /tmp/coins_btcp.py
@@ -437,7 +439,7 @@ print('>> Patched ElectrumX with BitcoinPurple coin classes')
 PATCH
 ```
 
-### 6.3 Environment Variables
+### 6.4 Environment Variables
 
 ```env
 # ── Identity ──────────────────────────────────────────────────────────────────
@@ -485,7 +487,7 @@ ulimits:
     hard: 1048576
 ```
 
-### 6.4 ZMQ Notification Ports
+### 6.5 ZMQ Notification Ports
 
 These are recommended local ports if you enable ZMQ notifications. BitcoinPurple
 Core does not assign default ZMQ bind ports; the port only exists if you set the
@@ -525,7 +527,7 @@ Modelled after the `AbstractNet` interface (see `pallectrum` for a working examp
 | `BOLT11_HRP` | `"btcp"` | `"tbtcp"` | LN invoice prefix |
 | `GENESIS` | `000003823f…c015` | `000002fdc3…d998` | full hashes in §2.5 / §3 |
 | `DEFAULT_PORTS` | `{'t':'50001','s':'50002'}` | `{'t':'60001','s':'60002'}` | |
-| `BIP44_COIN_TYPE` | `0` | `1` | il core usa `0` (Bitcoin) in mainnet e `1` in testnet/regtest — vedere nota |
+| `BIP44_COIN_TYPE` | `13496` (provisional — not SLIP-0044 registered) | `1` | matches BTCP P2P port; update when registered |
 | `LN_REALM_BYTE` | `0` | `1` | LN DNS realm byte; unused while `LN_DNS_SEEDS=[]` |
 | `LN_DNS_SEEDS` | `[]` | `[]` | no LN seeds configured |
 | `SKIP_POW_DIFFICULTY_VALIDATION` | `False` only after BTCP retarget support | `False` only after BTCP retarget support | see §7.7 |
@@ -533,15 +535,14 @@ Modelled after the `AbstractNet` interface (see `pallectrum` for a working examp
 | `COINBASE_MATURITY` | `100` | `100` | blocks before coinbase is spendable |
 | `BLOCK_HEIGHT_FIRST_LIGHTNING_CHANNELS` | `0` | `0` | allowed from genesis if LN is enabled |
 
-> **BIP44 coin type:** The Bitcoin Purple Core wallet (`src/wallet/scriptpubkeyman.cpp`)
-> uses `coin_type = 0` on mainnet and `coin_type = 1` on testnet/regtest — the same
-> values as Bitcoin. The resulting mainnet derivation paths are `m/44'/0'/0'/0/*`
-> (BIP44 P2PKH), `m/49'/0'/0'/0/*` (BIP49 P2WPKH-P2SH), `m/84'/0'/0'/0/*`
-> (BIP84 P2WPKH), and `m/86'/0'/0'/0/*` (BIP86 P2TR). BitcoinPurple has no
-> registered SLIP-0044 entry; index `183` is already assigned to Bitcoin Private.
-> Until an official coin type is registered, any Electrum or LND fork targeting
-> BTCP should use `coin_type = 0` for mainnet and `1` for testnet to stay
-> consistent with the core wallet.
+> **BIP44 coin type:** BitcoinPurple has no SLIP-0044 entry. `BTCP` at index
+> `183` is already assigned to Bitcoin Private, so do not reuse it for
+> BitcoinPurple. In Electrum constants, store the non-hardened index
+> (`0 <= value < 0x80000000`); wallet derivation code adds the hardened bit when
+> building paths such as `m/44'/COIN_TYPE'/0'`. Use one project-wide provisional
+> integer until an official SLIP-0044 slot is registered. The `13496` value below
+> is a project-local placeholder chosen to match the BTCP P2P port, not a
+> registered SLIP-0044 value.
 
 ### 7.2 `constants.py` Class Definitions
 
@@ -569,8 +570,8 @@ class BitcoinPurple(AbstractNet):
     COINBASE_MATURITY = 100     # consensus/consensus.h:19
     POW_TARGET_SPACING = 60     # 60-second blocks
 
-    # BIP44 coin type — matches Bitcoin Purple Core (src/wallet/scriptpubkeyman.cpp)
-    BIP44_COIN_TYPE = 0           # same as Bitcoin mainnet; no SLIP-0044 entry registered
+    # BIP44 coin type — not registered in SLIP-0044
+    BIP44_COIN_TYPE = 13496       # provisional private constant; update when registered
 
     # Lightning. Height 0 means "allowed from genesis" in Electrum.
     BLOCK_HEIGHT_FIRST_LIGHTNING_CHANNELS = 0
@@ -638,8 +639,8 @@ class BitcoinPurpleTestnet(BitcoinPurple):
 
 ### 7.3 Derivation Paths (BIP44 / 49 / 84 / 86)
 
-Standard HD paths for each script type. The Bitcoin Purple Core wallet uses
-`COIN_TYPE = 0` on mainnet and `1` on testnet/regtest (see §7.1 note).
+Standard HD paths for each script type. Replace `COIN_TYPE` with the registered
+value (TBD — see §7.1 note).
 
 | BIP | Script type | Path template | xpub/xprv prefix |
 |-----|-------------|---------------|-----------------|
@@ -777,7 +778,7 @@ Files that must be added or changed in an Electrum fork:
 | `electrum/chains/bitcoinpurple/checkpoints.json` | Generate from a synced BTCP node |
 | header chain verifier | Use 120-block retarget and BTCP `powLimit` |
 | address module | Accept Base58 versions 56/55 and Bech32 HRP `btcp` |
-| transaction/wallet formats | Use `coin_type = 0` (mainnet) / `1` (testnet), matching Bitcoin Purple Core |
+| transaction/wallet formats | Use BTCP provisional BIP44 coin type consistently |
 | Lightning invoice parser | Accept `lnbtcp` / `lntbtcp` BOLT11 prefixes if LN is enabled |
 | UI/network selector | Expose BitcoinPurple mainnet/testnet names and datadirs |
 
@@ -927,7 +928,7 @@ fork needs equivalent new `chaincfg` / chain registry parameters.
 | Address params | P2PKH 56, P2SH 55, Bech32 `btcp`, WIF 183 |
 | Chain hash | same §8.1 wire value |
 | Invoice HRP | `btcp` |
-| Coin type | `0` (mainnet) / `1` (testnet) — matches Bitcoin Purple Core wallet |
+| Coin type | use the same provisional Electrum value until SLIP-0044 registration |
 | Timeout defaults | use §8.3 scaled block counts |
 | Fee estimator | ensure targets are interpreted as 1-minute BTCP blocks |
 
@@ -1052,4 +1053,4 @@ COST_SOFT_LIMIT=0
 COST_HARD_LIMIT=0
 PEER_DISCOVERY=on
 PEER_ANNOUNCE=true
-```
+```
\ No newline at end of file
diff --git a/tecnichal-data.md b/tecnichal-data.md
deleted file mode 100644
index 45da117b1..000000000
--- a/tecnichal-data.md
+++ /dev/null
@@ -1,1048 +0,0 @@
-# BitcoinPurple — Technical Reference
-
-Parameter reference for BitcoinPurple (BTCP) node operators and developers building
-on top of the network: ElectrumX server, Electrum wallet fork, Lightning Network fork.
-All values are sourced directly from the codebase unless noted otherwise.
-
----
-
-## Quick Reference
-
-The most-looked-up values, all in one place.
-
-| Parameter | Mainnet | Testnet | Signet | Regtest |
-|-----------|---------|---------|--------|---------|
-| P2P port | `13496` | `23496` | `33496` | `18444` |
-| RPC port | `13495` | `23495` | `33495` | `18443` |
-| ElectrumX TCP | `50001` | `60001` | — | — |
-| ElectrumX SSL | `50002` | `60002` | — | — |
-| Magic bytes | `fc991395` | `29fbc5fe` | — | `31346ac9` |
-| Bech32 / BOLT11 HRP | `btcp` | `tbtcp` | `tbtcp` | `rbtcp` |
-| P2PKH prefix | 56 (`0x38`) → `P` | 56 (`0x38`) | 56 | 56 |
-| P2SH prefix | 55 (`0x37`) → `P` | 55 (`0x37`) | 55 | 55 |
-| WIF prefix | 183 (`0xb7`) | 183 (`0xb7`) | 183 | 183 |
-| BIP32 xpub | `0488B21E` | `043587CF` | `043587CF` | `043587CF` |
-| BIP32 xprv | `0488ADE4` | `04358394` | `04358394` | `04358394` |
-| Block time | 60 s | 60 s | 60 s | instant |
-| Halving interval | 500,000 blocks | — | — | 150 blocks |
-| Monetary cap (`MAX_MONEY`) | 1,000,000 BTCP | — | — | — |
-| Genesis hash | `000003823f…c015` | `000002fdc3…d998` | `00000131aa…b403` | `6f6ffbda…e1df` |
-| LN chain_hash | `15c04ef0…0000` | `98d9f92e…0000` | — | — |
-
----
-
-## 1. Network Identity
-
-| Parameter | Value | Source |
-|-----------|-------|--------|
-| Full name | BitcoinPurple | — |
-| Ticker | BTCP | — |
-| Version | 1.1.1 | `configure.ac` |
-| Daemon binary | `bitcoinpurpled` | — |
-| Config file | `~/.bitcoinpurple/bitcoinpurple.conf` | — |
-| PoW algorithm | SHA256d (identical to Bitcoin) | — |
-| Protocol version | 70016 | `src/version.h:12` |
-| Min peer protocol | 31800 | `src/version.h:18` |
-
----
-
-## 2. Mainnet Parameters
-
-### 2.1 Ports
-
-| Service | Port | Source |
-|---------|------|--------|
-| P2P | `13496` | `src/kernel/chainparams.cpp:116` |
-| RPC | `13495` | `src/chainparamsbase.cpp:47` |
-| Tor onion | `8334` | `src/chainparamsbase.cpp:47` |
-
-### 2.2 Address Encoding
-
-| Type | Decimal | Hex | Address prefix | Source |
-|------|---------|-----|----------------|--------|
-| P2PKH (`PUBKEY_ADDRESS`) | 56 | `0x38` | `P` | `src/kernel/chainparams.cpp:154` |
-| P2SH (`SCRIPT_ADDRESS`) | 55 | `0x37` | `P` | `src/kernel/chainparams.cpp:155` |
-| WIF secret key | 183 | `0xb7` | — | `src/kernel/chainparams.cpp:156` |
-| Bech32 HRP | — | — | `btcp1…` | `src/kernel/chainparams.cpp:160` |
-
-### 2.3 HD Key Version Bytes
-
-**BIP32 standard (xpub / xprv):**
-
-| Type | Bytes (hex) | Base58 prefix | Source |
-|------|-------------|---------------|--------|
-| xpub | `0488B21E` | `xpub` | `src/kernel/chainparams.cpp:157` |
-| xprv | `0488ADE4` | `xprv` | `src/kernel/chainparams.cpp:158` |
-
-**SLIP-0132 extended headers (all script types):**
-
-BTCP uses the same BIP32 root bytes as Bitcoin mainnet, so the registered
-SLIP-0132 SegWit version bytes are identical to Bitcoin mainnet. Taproot/BIP86
-does **not** have registered SLIP-0132 `trub` / `trpv` headers; use standard
-`xpub` / `xprv` plus the BIP86 derivation path or descriptors.
-
-```python
-XPRV_HEADERS = {
-    'standard':    0x0488ade4,  # xprv
-    'p2wpkh-p2sh': 0x049d7878,  # yprv
-    'p2wsh-p2sh':  0x0295b005,  # Yprv
-    'p2wpkh':      0x04b2430c,  # zprv
-    'p2wsh':       0x02aa7a99,  # Zprv
-}
-XPUB_HEADERS = {
-    'standard':    0x0488b21e,  # xpub
-    'p2wpkh-p2sh': 0x049d7cb2,  # ypub
-    'p2wsh-p2sh':  0x0295b43f,  # Ypub
-    'p2wpkh':      0x04b24746,  # zpub
-    'p2wsh':       0x02aa7ed3,  # Zpub
-}
-```
-
-### 2.4 Magic Bytes (P2P message header)
-
-`fc 99 13 95` — Source: `src/kernel/chainparams.cpp:112-115`
-
-### 2.5 Genesis Block
-
-| Parameter | Value | Source |
-|-----------|-------|--------|
-| Hash (display) | `000003823fbf82ea4906cbe214617ce7a70a5da29c19ecb1d65618bcf04ec015` | `src/kernel/chainparams.cpp:144` |
-| LN chain_hash (wire, reversed bytes) | `15c04ef0bc1856d6b1ec199ca25d0aa7e77c6114e2cb0649ea82bf3f82030000` | derived |
-| Merkle root | `b5f46757618a0aa2961b23f51de039ef23a77c24decc43d600348aff051f0a05` | `src/kernel/chainparams.cpp:145` |
-| Timestamp (Unix) | `1691126832` | `src/kernel/chainparams.cpp:121` |
-| Timestamp (UTC) | `2023-08-04T05:27:12Z` | — |
-| Nonce | `1302816` (`0x13E120`) | `src/kernel/chainparams.cpp:121` |
-| nBits | `1e0ffff0` | `src/kernel/chainparams.cpp:121` |
-| Version | `1` | `src/kernel/chainparams.cpp:121` |
-| Coinbase message | `"Global transactions for everyone around the world"` | `src/kernel/chainparams.cpp:64` |
-| Coinbase pubkey | `04f26c8111029cf40de900c7075706cb58e5ed1e7f1d4911790019ee8c345eeb84060b1a09fb655c88e58ff35357ffe28678e62008f759ea260c7c37c9fae23869` | `src/kernel/chainparams.cpp:65` |
-
-### 2.6 Consensus & Emission
-
-| Parameter | Value | Source |
-|-----------|-------|--------|
-| Block time (`nPowTargetSpacing`) | 60 seconds | `src/kernel/chainparams.cpp:88` |
-| Difficulty retarget window | 120 blocks (~2 hours) | `src/kernel/chainparams.cpp:87-88` |
-| PoW target timespan | 7200 seconds | `src/kernel/chainparams.cpp:87` |
-| PoW limit | `00000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff` | `src/kernel/chainparams.cpp:86` |
-| Halving interval | 500,000 blocks | `src/kernel/chainparams.cpp:78` |
-| Initial block reward | 1 BTCP | `src/validation.cpp:1549` |
-| COIN (satoshis per BTCP) | 100,000,000 | `src/consensus/amount.h:16` |
-| MAX_MONEY validation cap | 1,000,000 BTCP | `src/consensus/amount.h:27` |
-| Coinbase maturity | 100 blocks | `src/consensus/consensus.h:19` |
-| Rule change activation threshold | 108 / 120 blocks (90%) | `src/kernel/chainparams.cpp:91` |
-
-**Block reward schedule** (source: `src/validation.cpp:1542-1551`):
-
-| Era | Block range | Reward | Era total |
-|-----|-------------|--------|-----------|
-| 0 | 0 – 499,999 | 1.00000000 BTCP | 500,000 BTCP |
-| 1 | 500,000 – 999,999 | 0.50000000 BTCP | 250,000 BTCP |
-| 2 | 1,000,000 – 1,499,999 | 0.25000000 BTCP | 125,000 BTCP |
-| 3 | 1,500,000 – 1,999,999 | 0.12500000 BTCP | 62,500 BTCP |
-| ∞ | — | — | ~1,000,000 BTCP generated subsidy |
-
-`MAX_MONEY` is the consensus money-range sanity cap, not a direct UTXO supply
-counter. The genesis coinbase follows the normal 1 BTCP subsidy construction,
-but like Bitcoin Core-derived chains it is not spendable from the UTXO set.
-For user-facing supply text, distinguish:
-
-- **Maximum generated subsidy:** asymptotically ~1,000,000 BTCP.
-- **Maximum spendable subsidy:** asymptotically ~999,999 BTCP if the genesis
-  coinbase remains unspendable.
-
-### 2.7 Difficulty Adjustment
-
-BTCP keeps Bitcoin's compact target / SHA256d proof-of-work validation, but the
-retarget interval is much shorter:
-
-| Parameter | Mainnet value | Source |
-|-----------|---------------|--------|
-| Target spacing | 60 seconds | `src/kernel/chainparams.cpp:88` |
-| Target timespan | 7,200 seconds | `src/kernel/chainparams.cpp:87` |
-| Adjustment interval | 120 blocks | `nPowTargetTimespan / nPowTargetSpacing` |
-| Retarget boundary | every block height divisible by 120 | `src/pow.cpp:18-47` |
-| Minimum actual timespan | 1,800 seconds | `src/pow.cpp:56` |
-| Maximum actual timespan | 28,800 seconds | `src/pow.cpp:58` |
-| Max change per retarget | 4x easier or 4x harder | `src/pow.cpp:56-66` |
-| Mainnet min-difficulty blocks | disabled | `fPowAllowMinDifficultyBlocks=false` |
-| No-retarget mode | disabled | `fPowNoRetargeting=false` |
-
-Retarget flow for a candidate block at height `H`:
-
-1. If `H % 120 != 0`, the block must keep the previous block's `nBits`.
-2. If `H % 120 == 0`, take the previous 120-block window:
-   `first = H - 120`, `last = H - 1`.
-3. Compute `actual_timespan = last.time - first.time`.
-4. Clamp it to `[7200 / 4, 7200 * 4]`, i.e. `[1800, 28800]` seconds.
-5. Decode previous `nBits` to a target, then:
-
-```text
-new_target = old_target * actual_timespan / 7200
-new_target = min(new_target, powLimit)
-new_nBits  = compact(new_target)
-```
-
-Interpretation:
-
-- Blocks faster than 60 seconds make `actual_timespan < 7200`, so target
-  decreases and difficulty increases.
-- Blocks slower than 60 seconds make `actual_timespan > 7200`, so target
-  increases and difficulty decreases.
-- The clamp prevents a single retarget from changing difficulty by more than 4x.
-
-### 2.8 Soft-Fork Activation
-
-All soft-forks are active from genesis (height 0). Source: `src/kernel/chainparams.cpp:79-102`
-
-| BIP | Feature | Activation height |
-|-----|---------|-------------------|
-| BIP34 | Block height in coinbase | 0 |
-| BIP65 | `CHECKLOCKTIMEVERIFY` | 0 |
-| BIP66 | Strict DER signatures | 0 |
-| BIP68/112/113 | `CheckSequenceVerify` (CSV) | 0 |
-| BIP141/143/147 | SegWit | 0 |
-| BIP340-342 | Taproot (`ALWAYS_ACTIVE`) | 0 |
-
-### 2.9 Chain Validation
-
-| Parameter | Value | Source |
-|-----------|-------|--------|
-| Minimum chain work | `00000000000000000000000000000000000000000000074e7000dc41ac550926` | `src/kernel/chainparams.cpp:104` |
-| Default assume valid | `00000000000009733cf805e87e19261ae833319b874c694d4d74995ea526c968` | `src/kernel/chainparams.cpp:105` |
-| Prune after height | 100,000 | `src/kernel/chainparams.cpp:117` |
-| TX count reference | 1,189,400 at block 1,048,808 | `src/kernel/chainparams.cpp:178-184` |
-
-### 2.10 DNS Seeds
-
-| Seed | Source |
-|------|--------|
-| `node3.walletbuilders.com` | `src/kernel/chainparams.cpp:152` |
-
----
-
-## 3. Testnet Parameters
-
-| Parameter | Value | Source |
-|-----------|-------|--------|
-| P2P port | `23496` | `src/kernel/chainparams.cpp:230` |
-| RPC port | `23495` | `src/chainparamsbase.cpp:49` |
-| Magic bytes | `29 fb c5 fe` | `src/kernel/chainparams.cpp:226-229` |
-| Bech32 / BOLT11 HRP | `tbtcp` | `src/kernel/chainparams.cpp:270` |
-| P2PKH | 56 (`0x38`) | `src/kernel/chainparams.cpp:264` |
-| P2SH | 55 (`0x37`) | `src/kernel/chainparams.cpp:265` |
-| WIF prefix | 183 (`0xb7`) | `src/kernel/chainparams.cpp:266` |
-| BIP32 xpub | `043587CF` | `src/kernel/chainparams.cpp:267` |
-| BIP32 xprv | `04358394` | `src/kernel/chainparams.cpp:268` |
-| Genesis hash (display) | `000002fdc3921c1ad368816fcc587f499698d42b42ab5a5d94ee67882ef9d998` | `src/kernel/chainparams.cpp:259` |
-| LN chain_hash (wire) | `98d9f92e8867ee945d5aab422bd49896497f58cc6f8168d31a1c92c3fd020000` | derived |
-| Genesis merkle root | `b5f46757618a0aa2961b23f51de039ef23a77c24decc43d600348aff051f0a05` | same as mainnet |
-| Genesis timestamp | `1691126837` | `src/kernel/chainparams.cpp:235` |
-| Genesis nonce | `521609` (`0x7F589`) | `src/kernel/chainparams.cpp:235` |
-| Genesis nBits | `1e0ffff0` | `src/kernel/chainparams.cpp:235` |
-| ElectrumX TCP / SSL | `60001` / `60002` | `coins_btcp.py` |
-
-**SLIP-0132 HD headers — testnet** (identical to Bitcoin testnet, since BIP32 bytes are `043587CF`/`04358394`; Taproot/BIP86 still uses standard `tpub` / `tprv` plus path/descriptor metadata):
-
-```python
-XPRV_HEADERS = {
-    'standard':    0x04358394,  # tprv
-    'p2wpkh-p2sh': 0x044a4e28,  # uprv
-    'p2wsh-p2sh':  0x024285b5,  # Uprv
-    'p2wpkh':      0x045f18bc,  # vprv
-    'p2wsh':       0x02575048,  # Vprv
-}
-XPUB_HEADERS = {
-    'standard':    0x043587cf,  # tpub
-    'p2wpkh-p2sh': 0x044a5262,  # upub
-    'p2wsh-p2sh':  0x024289ef,  # Upub
-    'p2wpkh':      0x045f1cf6,  # vpub
-    'p2wsh':       0x02575483,  # Vpub
-}
-```
-
----
-
-## 4. Signet Parameters
-
-| Parameter | Value | Source |
-|-----------|-------|--------|
-| P2P port | `33496` | `src/kernel/chainparams.cpp:375` |
-| RPC port | `33495` | `src/chainparamsbase.cpp:51` |
-| Bech32 HRP | `tbtcp` | `src/kernel/chainparams.cpp:412` |
-| P2PKH / P2SH / WIF | 56 / 55 / 183 | `src/kernel/chainparams.cpp:406-408` |
-| BIP32 xpub / xprv | `043587CF` / `04358394` | `src/kernel/chainparams.cpp:409-410` |
-| Genesis hash | `00000131aa3124412b7ba8473f137922692c88da8fe26042e250c6cd76b7b403` | `src/kernel/chainparams.cpp:402` |
-| Genesis timestamp | `1691126842` | `src/kernel/chainparams.cpp:378` |
-| Genesis nonce | `1829993` (`0x1be0a9`) | `src/kernel/chainparams.cpp:378` |
-| Genesis nBits | `1e0377ae` | `src/kernel/chainparams.cpp:378` |
-| PoW limit | `00000377ae000000000000000000000000000000000000000000000000000000` | `src/kernel/chainparams.cpp:350` |
-| Default signet challenge | `512103ad5e0edad18cb1f0fc0d28a3d4f1f3e445640337489abb10404f2d1e086be430210359ef5021964fe22d6f8e05b2463c9540ce96883fe3b278760f048f5189f2e6c452ae` | `src/kernel/chainparams.cpp:308` |
-
----
-
-## 5. Regtest Parameters
-
-| Parameter | Value | Source |
-|-----------|-------|--------|
-| P2P port | `18444` | `src/kernel/chainparams.cpp:466` |
-| RPC port | `18443` | `src/chainparamsbase.cpp:53` |
-| Magic bytes | `31 34 6a c9` | `src/kernel/chainparams.cpp:462-465` |
-| Bech32 HRP | `rbtcp` | `src/kernel/chainparams.cpp:556` |
-| P2PKH / P2SH / WIF | 56 / 55 / 183 | `src/kernel/chainparams.cpp:550-552` |
-| BIP32 xpub / xprv | `043587CF` / `04358394` | `src/kernel/chainparams.cpp:553-554` |
-| Genesis hash | `6f6ffbda4cb789c69d885d4624ea4a28841d3689fbaf969262150ca45a1ae1df` | `src/kernel/chainparams.cpp:521` |
-| Genesis timestamp | `1691126837` | `src/kernel/chainparams.cpp:497` |
-| Genesis nonce | `4` | `src/kernel/chainparams.cpp:497` |
-| Genesis nBits | `207fffff` | `src/kernel/chainparams.cpp:497` |
-| Halving interval | 150 blocks | `src/kernel/chainparams.cpp:433` |
-| No retargeting | `true` | `src/kernel/chainparams.cpp:440` |
-
----
-
-## 6. ElectrumX Server
-
-### 6.1 Coin Definition (`coins_btcp.py`)
-
-Drop-in patch for `electrumx/lib/coins.py`. Place as
-`electrumx-patch/coins_btcp.py` and apply via the Docker patch snippet below.
-
-```python
-# coins_btcp.py — BitcoinPurple (BTCP) coin definitions for ElectrumX
-# Patch into electrumx/lib/coins.py alongside the Bitcoin class.
-
-
-class BitcoinPurple(Bitcoin):
-    NAME = 'BitcoinPurple'
-    SHORTNAME = 'BTCP'
-    NET = 'mainnet'
-    DESERIALIZER = lib_tx.DeserializerSegWit
-    GENESIS_HASH = (
-        '000003823fbf82ea4906cbe214617ce7a70a5da29c19ecb1d65618bcf04ec015'
-    )
-    # Base58 address prefixes
-    P2PKH_VERBYTE = bytes([56])       # 0x38
-    P2SH_VERBYTES = (bytes([55]),)    # 0x37
-    WIF_BYTE = bytes([183])           # 0xb7
-    # BIP32 HD key version bytes
-    XPUB_VERBYTES = bytes.fromhex('0488B21E')
-    XPRV_VERBYTES = bytes.fromhex('0488ADE4')
-    # Bech32 / SegWit metadata for forks; ElectrumX indexes scripts directly.
-    SEGWIT_HRP = 'btcp'
-    # Do not inherit Bitcoin Electrum peers or Bitcoin Core version gates.
-    PEERS = []
-    MIN_REQUIRED_DAEMON_VERSION = '1.1.1'
-    BLACKLIST_URL = None
-    # 1-minute blocks: keep enough undo data for practical reorg handling.
-    REORG_LIMIT = 1200
-    # Chain stats — updated from fully synced mainnet node at block 1,048,808 (Apr 2026)
-    TX_COUNT = 1_189_400
-    TX_COUNT_HEIGHT = 1_048_808
-    TX_PER_BLOCK = 2
-    # RPC port (bitcoinpurpled mainnet default)
-    RPC_PORT = 13495
-    PEER_DEFAULT_PORTS = {'t': '50001', 's': '50002'}
-
-
-class BitcoinPurpleTestnet(BitcoinPurple):
-    NAME = 'BitcoinPurple Testnet'
-    SHORTNAME = 'TBTCP'
-    NET = 'testnet'
-    GENESIS_HASH = (
-        '000002fdc3921c1ad368816fcc587f499698d42b42ab5a5d94ee67882ef9d998'
-    )
-    XPUB_VERBYTES = bytes.fromhex('043587CF')
-    XPRV_VERBYTES = bytes.fromhex('04358394')
-    SEGWIT_HRP = 'tbtcp'
-    TX_COUNT = 1
-    TX_COUNT_HEIGHT = 0
-    TX_PER_BLOCK = 1
-    RPC_PORT = 23495
-    PEERS = []
-    REORG_LIMIT = 1200
-    PEER_DEFAULT_PORTS = {'t': '60001', 's': '60002'}
-```
-
-Notes for this coin class:
-
-- `PEERS = []` is intentional until there are known-good BTCP ElectrumX peers.
-  ElectrumX peer discovery verifies genesis, but inheriting Bitcoin peers wastes
-  resources and can leak confusing peer data.
-- `MIN_REQUIRED_DAEMON_VERSION` must not inherit Bitcoin's current upstream
-  requirement. Keep it aligned with the BTCP daemon version you ship, or remove
-  the version gate in your ElectrumX fork.
-- `TX_COUNT`, `TX_COUNT_HEIGHT`, and `TX_PER_BLOCK` are sync-estimation hints,
-  not consensus values. Refresh them from a synced BTCP node before release.
-- ElectrumX does not need ZMQ to index; it polls RPC. ZMQ is useful for lower
-  latency only if your chosen ElectrumX build/plugin uses it.
-
-### 6.1.1 ElectrumX Node Requirements
-
-Required full-node settings:
-
-| Requirement | Value / setting | Reason |
-|-------------|-----------------|--------|
-| RPC server | `server=1`, `rpcport=13495` | ElectrumX reads blocks and transactions through JSON-RPC |
-| Transaction index | `txindex=1` | Required for historical transaction lookups |
-| Pruning | disabled (`prune=0`) | ElectrumX must be able to index from genesis |
-| Chain | mainnet unless `NET=testnet` | Must match `COIN`/`NET` in ElectrumX |
-| Disk | full block data + ElectrumX DB | DB grows with history; do not run from a tiny volume |
-
-Minimum RPC methods used by ElectrumX-compatible servers include
-`getblockhash`, `getblock`, `getrawtransaction`, `getnetworkinfo`,
-`getblockchaininfo`, `estimatesmartfee`, and `sendrawtransaction`.
-
-Recommended public Electrum services:
-
-| Service | Mainnet | Testnet | Notes |
-|---------|---------|---------|-------|
-| Plain TCP | `50001` | `60001` | Standard Electrum convention |
-| TLS/SSL TCP | `50002` | `60002` | Recommended for public wallets |
-| Local admin RPC | `8000` | `8000` or private | Keep firewalled; do not advertise publicly |
-
-For `servers.json`, replace `your-server.example.com` with a real DNS name or
-public IP. The current file only documents the format; it does not configure a
-real public server.
-
-### 6.2 Docker Patch Snippet
-
-```dockerfile
-COPY electrumx-patch/coins_btcp.py /tmp/coins_btcp.py
-
-RUN python3 - <<'PATCH'
-import pathlib, re
-
-patch = pathlib.Path('/tmp/coins_btcp.py').read_text()
-classes = re.split(r'^(?=class )', patch, flags=re.MULTILINE)
-classes = [c for c in classes if c.strip().startswith('class ')]
-body = '\n' + '\n'.join(classes)
-
-for target in [
-    '/usr/local/lib/python3.13/dist-packages/electrumx/lib/coins.py',
-    '/electrumx/src/electrumx/lib/coins.py',
-]:
-    p = pathlib.Path(target)
-    if p.exists():
-        s = p.read_text()
-        if 'class BitcoinPurple(Bitcoin):' not in s:
-            p.write_text(s + body)
-
-print('>> Patched ElectrumX with BitcoinPurple coin classes')
-PATCH
-```
-
-### 6.3 Environment Variables
-
-```env
-# ── Identity ──────────────────────────────────────────────────────────────────
-COIN=BitcoinPurple
-NET=mainnet                          # or: testnet
-
-# ── Node connection ───────────────────────────────────────────────────────────
-DAEMON_URL=http://btcpuser:CHANGE_ME@bitcoinpurpled:13495/
-# testnet:  DAEMON_URL=http://btcpuser:CHANGE_ME@bitcoinpurpled:23495/
-
-# ── Storage ───────────────────────────────────────────────────────────────────
-DB_DIRECTORY=/data/electrumx
-
-# ── Services exposed ──────────────────────────────────────────────────────────
-SERVICES=tcp://0.0.0.0:50001,ssl://0.0.0.0:50002,rpc://0.0.0.0:8000
-# Override only if auto-detected public IP is wrong:
-# REPORT_SERVICES=tcp://your-server-ip:50001,ssl://your-server-ip:50002
-
-# ── TLS ───────────────────────────────────────────────────────────────────────
-SSL_CERTFILE=/certs/server.crt
-SSL_KEYFILE=/certs/server.key
-
-# ── Performance ───────────────────────────────────────────────────────────────
-CACHE_MB=1200
-MAX_SESSIONS=1000
-INITIAL_CONCURRENT=2
-
-# ── Rate limiting (0 = disabled) ─────────────────────────────────────────────
-COST_SOFT_LIMIT=0
-COST_HARD_LIMIT=0
-
-# ── Peer discovery ────────────────────────────────────────────────────────────
-PEER_DISCOVERY=on
-PEER_ANNOUNCE=true
-```
-
-**Protocol version** served: `1.4.2`
-
-**OS ulimit** — set `nofile` to at least `1048576` (open file descriptors):
-
-```yaml
-ulimits:
-  nofile:
-    soft: 1048576
-    hard: 1048576
-```
-
-### 6.4 ZMQ Notification Ports
-
-These are recommended local ports if you enable ZMQ notifications. BitcoinPurple
-Core does not assign default ZMQ bind ports; the port only exists if you set the
-corresponding `bitcoinpurple.conf` value.
-
-| `bitcoinpurple.conf` key | Recommended local port | Payload |
-|--------------------------|------------------------|---------|
-| `zmqpubrawblock` | `28332` | full serialised block |
-| `zmqpubrawtx` | `28333` | raw transaction (mempool + confirmed) |
-| `zmqpubhashblock` | `28334` | 32-byte block hash |
-| `zmqpubhashtx` | `28335` | 32-byte tx hash |
-
-Prevent dropped messages under load:
-
-```ini
-zmqpubrawblockhwm=500
-zmqpubrawtxhwm=500
-```
-
----
-
-## 7. Electrum Wallet (`constants.py`)
-
-Reference for building an Electrum wallet fork targeting BTCP.
-Modelled after the `AbstractNet` interface (see `pallectrum` for a working example).
-
-### 7.1 Parameter Table
-
-| Field | Mainnet | Testnet | Source / Note |
-|-------|---------|---------|---------------|
-| `NET_NAME` | `"bitcoinpurple"` | `"testnet"` | wallet data subfolder |
-| `TESTNET` | `False` | `True` | |
-| `WIF_PREFIX` | `0xb7` (183) | `0xb7` (183) | same on both — `chainparams.cpp:156/266` |
-| `ADDRTYPE_P2PKH` | `56` | `56` | addresses start with `P` |
-| `ADDRTYPE_P2SH` | `55` | `55` | addresses start with `P` |
-| `SEGWIT_HRP` | `"btcp"` | `"tbtcp"` | Bech32 human-readable part |
-| `BOLT11_HRP` | `"btcp"` | `"tbtcp"` | LN invoice prefix |
-| `GENESIS` | `000003823f…c015` | `000002fdc3…d998` | full hashes in §2.5 / §3 |
-| `DEFAULT_PORTS` | `{'t':'50001','s':'50002'}` | `{'t':'60001','s':'60002'}` | |
-| `BIP44_COIN_TYPE` | `13496` (provisional — not SLIP-0044 registered) | `1` | matches BTCP P2P port; update when registered |
-| `LN_REALM_BYTE` | `0` | `1` | LN DNS realm byte; unused while `LN_DNS_SEEDS=[]` |
-| `LN_DNS_SEEDS` | `[]` | `[]` | no LN seeds configured |
-| `SKIP_POW_DIFFICULTY_VALIDATION` | `False` only after BTCP retarget support | `False` only after BTCP retarget support | see §7.7 |
-| `POW_TARGET_SPACING` | `60` | `60` | seconds per block |
-| `COINBASE_MATURITY` | `100` | `100` | blocks before coinbase is spendable |
-| `BLOCK_HEIGHT_FIRST_LIGHTNING_CHANNELS` | `0` | `0` | allowed from genesis if LN is enabled |
-
-> **BIP44 coin type:** BitcoinPurple has no SLIP-0044 entry. `BTCP` at index
-> `183` is already assigned to Bitcoin Private, so do not reuse it for
-> BitcoinPurple. In Electrum constants, store the non-hardened index
-> (`0 <= value < 0x80000000`); wallet derivation code adds the hardened bit when
-> building paths such as `m/44'/COIN_TYPE'/0'`. Use one project-wide provisional
-> integer until an official SLIP-0044 slot is registered. The `13496` value below
-> is a project-local placeholder chosen to match the BTCP P2P port, not a
-> registered SLIP-0044 value.
-
-### 7.2 `constants.py` Class Definitions
-
-```python
-# constants.py — BitcoinPurple network definitions for an Electrum wallet fork
-# Drop these classes into electrum/constants.py alongside BitcoinMainnet.
-
-
-class BitcoinPurple(AbstractNet):
-
-    NET_NAME = "bitcoinpurple"
-    TESTNET = False
-
-    # Address & key encoding
-    WIF_PREFIX = 0xb7           # 183 — chainparams.cpp:156
-    ADDRTYPE_P2PKH = 56         # 0x38 — chainparams.cpp:154
-    ADDRTYPE_P2SH = 55          # 0x37 — chainparams.cpp:155
-    SEGWIT_HRP = "btcp"         # chainparams.cpp:160
-    BOLT11_HRP = SEGWIT_HRP
-
-    GENESIS = "000003823fbf82ea4906cbe214617ce7a70a5da29c19ecb1d65618bcf04ec015"
-    DEFAULT_PORTS = {'t': '50001', 's': '50002'}
-
-    # Consensus
-    COINBASE_MATURITY = 100     # consensus/consensus.h:19
-    POW_TARGET_SPACING = 60     # 60-second blocks
-
-    # BIP44 coin type — not registered in SLIP-0044
-    BIP44_COIN_TYPE = 13496       # provisional private constant; update when registered
-
-    # Lightning. Height 0 means "allowed from genesis" in Electrum.
-    BLOCK_HEIGHT_FIRST_LIGHTNING_CHANNELS = 0
-    LN_REALM_BYTE = 0
-    LN_DNS_SEEDS = []
-
-    # PoW validation — requires BTCP's 120-block retarget implementation.
-    SKIP_POW_DIFFICULTY_VALIDATION = False
-
-    # SLIP-0132 HD key version bytes — identical to Bitcoin mainnet
-    # BTCP mainnet uses the same BIP32 root bytes: 0488B21E / 0488ADE4
-    XPRV_HEADERS = {
-        'standard':    0x0488ade4,  # xprv
-        'p2wpkh-p2sh': 0x049d7878,  # yprv
-        'p2wsh-p2sh':  0x0295b005,  # Yprv
-        'p2wpkh':      0x04b2430c,  # zprv
-        'p2wsh':       0x02aa7a99,  # Zprv
-    }
-    XPRV_HEADERS_INV = inv_dict(XPRV_HEADERS)
-    XPUB_HEADERS = {
-        'standard':    0x0488b21e,  # xpub
-        'p2wpkh-p2sh': 0x049d7cb2,  # ypub
-        'p2wsh-p2sh':  0x0295b43f,  # Ypub
-        'p2wpkh':      0x04b24746,  # zpub
-        'p2wsh':       0x02aa7ed3,  # Zpub
-    }
-    XPUB_HEADERS_INV = inv_dict(XPUB_HEADERS)
-
-
-class BitcoinPurpleTestnet(BitcoinPurple):
-
-    NET_NAME = "testnet"
-    TESTNET = True
-
-    # Testnet uses the same address/WIF prefixes as mainnet (see chainparams)
-    WIF_PREFIX = 0xb7           # chainparams.cpp:266
-    ADDRTYPE_P2PKH = 56         # chainparams.cpp:264
-    ADDRTYPE_P2SH = 55          # chainparams.cpp:265
-    SEGWIT_HRP = "tbtcp"        # chainparams.cpp:270
-    BOLT11_HRP = SEGWIT_HRP
-
-    GENESIS = "000002fdc3921c1ad368816fcc587f499698d42b42ab5a5d94ee67882ef9d998"
-    DEFAULT_PORTS = {'t': '60001', 's': '60002'}
-    BIP44_COIN_TYPE = 1         # standard testnet coin type
-    LN_REALM_BYTE = 1
-
-    # SLIP-0132 — standard Bitcoin testnet values (BIP32 root: 043587CF / 04358394)
-    XPRV_HEADERS = {
-        'standard':    0x04358394,  # tprv
-        'p2wpkh-p2sh': 0x044a4e28,  # uprv
-        'p2wsh-p2sh':  0x024285b5,  # Uprv
-        'p2wpkh':      0x045f18bc,  # vprv
-        'p2wsh':       0x02575048,  # Vprv
-    }
-    XPRV_HEADERS_INV = inv_dict(XPRV_HEADERS)
-    XPUB_HEADERS = {
-        'standard':    0x043587cf,  # tpub
-        'p2wpkh-p2sh': 0x044a5262,  # upub
-        'p2wsh-p2sh':  0x024289ef,  # Upub
-        'p2wpkh':      0x045f1cf6,  # vpub
-        'p2wsh':       0x02575483,  # Vpub
-    }
-    XPUB_HEADERS_INV = inv_dict(XPUB_HEADERS)
-```
-
-### 7.3 Derivation Paths (BIP44 / 49 / 84 / 86)
-
-Standard HD paths for each script type. Replace `COIN_TYPE` with the registered
-value (TBD — see §7.1 note).
-
-| BIP | Script type | Path template | xpub/xprv prefix |
-|-----|-------------|---------------|-----------------|
-| BIP44 | P2PKH (legacy) | `m/44'/COIN_TYPE'/0'/0/n` | `xpub` / `xprv` |
-| BIP49 | P2WPKH-P2SH (wrapped SegWit) | `m/49'/COIN_TYPE'/0'/0/n` | `ypub` / `yprv` |
-| BIP84 | P2WPKH (native SegWit) | `m/84'/COIN_TYPE'/0'/0/n` | `zpub` / `zprv` |
-| BIP86 | P2TR (Taproot) | `m/86'/COIN_TYPE'/0'/0/n` | `xpub` / `xprv` or descriptors |
-
-- `ACCOUNT` = `0'` (first account, hardened)
-- `CHANGE` = `0` (receive) or `1` (change)
-- `INDEX` = address index (unhardened)
-
-### 7.4 Checkpoints (`checkpoints.json`)
-
-Electrum uses checkpoints for SPV header chain verification.
-The file lives at `electrum/chains/bitcoinpurple/checkpoints.json`.
-
-Format: a JSON array of `[header_hash_hex, accumulated_work_int]` pairs,
-one entry per 2016-block chunk. Chunk `n` covers blocks `n*2016` to `(n+1)*2016-1`.
-
-```json
-[
-  [
-    "000003823fbf82ea4906cbe214617ce7a70a5da29c19ecb1d65618bcf04ec015",
-    1048592
-  ]
-]
-```
-
-The first entry (chunk 0) is the genesis block hash with its accumulated PoW work
-(`0x00000000000000000000000000000000000000000000074e7000dc41ac550926` — from `nMinimumChainWork` in chainparams.cpp:104, updated at block 1,048,808).
-
-**To generate a full checkpoints.json** from a running node:
-
-```python
-import json, subprocess, math
-
-def get_header(height):
-    h = subprocess.check_output(
-        ['bitcoinpurple-cli', 'getblockhash', str(height)]).decode().strip()
-    return subprocess.check_output(
-        ['bitcoinpurple-cli', 'getblockheader', h, 'true']).decode()
-
-checkpoints = []
-tip = int(subprocess.check_output(
-    ['bitcoinpurple-cli', 'getblockcount']).decode().strip())
-
-for chunk in range(tip // 2016 + 1):
-    height = chunk * 2016
-    import json as _j
-    header = _j.loads(get_header(height))
-    checkpoints.append([header['hash'], int(header['chainwork'], 16)])
-
-print(json.dumps(checkpoints, indent=2))
-```
-
-### 7.5 `servers.json` Format
-
-Place at `electrum/chains/bitcoinpurple/servers.json` (mainnet)
-and `electrum/chains/testnet/servers.json` (testnet).
-
-```json
-{
-  "your-server.example.com": {
-    "pruning": "-",
-    "s": "50002",
-    "t": "50001",
-    "version": "1.4.2"
-  }
-}
-```
-
-| Field | Meaning |
-|-------|---------|
-| key | hostname or IP of the ElectrumX server |
-| `"pruning"` | `"-"` = full node; a number = pruned at that height |
-| `"s"` | SSL port |
-| `"t"` | TCP plain port |
-| `"version"` | minimum Electrum protocol version required |
-
-### 7.6 Dust Thresholds
-
-Minimum output values below which an output is considered "dust" and non-standard.
-These are the same as Bitcoin since BTCP uses identical script formats.
-
-| Script type | Dust limit | Policy fee rate |
-|-------------|-----------|-----------------|
-| P2PKH | 546 sat | `DUST_RELAY_TX_FEE` = 3000 sat/kvB (`src/policy/policy.h:55`) |
-| P2WPKH (native SegWit) | 294 sat | same |
-| P2WSH | 330 sat | same |
-| P2TR (Taproot) | 294 sat | same |
-| `OP_RETURN` | 0 (unspendable) | max 83 bytes (`src/script/standard.h:34`) |
-
-### 7.7 Electrum Header Verification
-
-Do not reuse Bitcoin's 2016-block difficulty verification logic unchanged.
-BTCP uses Bitcoin-style compact targets and double-SHA256 proof-of-work, but
-retargets every 120 blocks with a 7,200 second target timespan.
-
-Wallet constants / chain-verifier values:
-
-```python
-POW_LIMIT = int(
-    "00000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16
-)
-TARGET_SPACING = 60
-TARGET_TIMESPAN = 120 * 60
-DIFFICULTY_ADJUSTMENT_INTERVAL = 120
-MAX_ADJUSTMENT_FACTOR = 4
-```
-
-Header validation must perform:
-
-1. Verify `double_sha256(header) <= target_from_nbits(header.bits)`.
-2. Verify target is `> 0` and `<= POW_LIMIT`.
-3. If `height % 120 != 0`, require `header.bits == previous.bits`.
-4. If `height % 120 == 0`, compute expected `bits` from the previous 120-block
-   window using the §2.7 formula.
-5. Verify each header links to the previous header hash.
-6. Use `GENESIS` to anchor the chain and `checkpoints.json` to accelerate SPV
-   verification.
-
-If the Electrum fork does not yet implement BTCP's 120-block retarget logic,
-set `SKIP_POW_DIFFICULTY_VALIDATION = True` temporarily for development only.
-Do not ship a production wallet with difficulty validation disabled.
-
-### 7.8 Electrum Wallet Build Checklist
-
-Files that must be added or changed in an Electrum fork:
-
-| File / area | Required BTCP change |
-|-------------|----------------------|
-| `electrum/constants.py` | Add `BitcoinPurple` and `BitcoinPurpleTestnet` classes |
-| `electrum/chains/bitcoinpurple/servers.json` | Add real ElectrumX host(s), ports `50001` / `50002` |
-| `electrum/chains/bitcoinpurple/checkpoints.json` | Generate from a synced BTCP node |
-| header chain verifier | Use 120-block retarget and BTCP `powLimit` |
-| address module | Accept Base58 versions 56/55 and Bech32 HRP `btcp` |
-| transaction/wallet formats | Use BTCP provisional BIP44 coin type consistently |
-| Lightning invoice parser | Accept `lnbtcp` / `lntbtcp` BOLT11 prefixes if LN is enabled |
-| UI/network selector | Expose BitcoinPurple mainnet/testnet names and datadirs |
-
----
-
-## 8. Lightning Network
-
-This section documents the chain-specific parameters required to build or fork
-a Lightning Network implementation for BTCP. General BOLT protocol behaviour
-(onion routing, payment flow, gossip) is identical to Bitcoin LN.
-
-### 8.1 Chain Identification
-
-In BOLT1, every message that references a specific chain carries a `chain_hash`.
-This is the genesis block hash in **wire byte order** (i.e. the display hex reversed byte-by-byte).
-
-| Network | Genesis hash (display) | chain_hash (BOLT1 wire) |
-|---------|------------------------|-------------------------|
-| Mainnet | `000003823fbf82ea…c015` | `15c04ef0bc1856d6b1ec199ca25d0aa7e77c6114e2cb0649ea82bf3f82030000` |
-| Testnet | `000002fdc3921c1a…d998` | `98d9f92e8867ee945d5aab422bd49896497f58cc6f8168d31a1c92c3fd020000` |
-
-The `chain_hash` appears in channel-establishment, channel-gossip, and gossip-query
-messages such as `open_channel`, `accept_channel`, `funding_created`,
-`channel_announcement`, `channel_update`, `query_channel_range`, and
-`reply_channel_range`. BOLT11 invoices do not normally carry `chain_hash`; their
-network is selected by the invoice HRP.
-
-### 8.2 BOLT11 Invoice Prefix
-
-| Network | HRP | Example invoice start |
-|---------|-----|-----------------------|
-| Mainnet | `btcp` | `lnbtcp1…` |
-| Testnet | `tbtcp` | `lntbtcp1…` |
-
-Amount suffix multipliers (same as Bitcoin):
-
-| Multiplier | Value |
-|------------|-------|
-| `m` | 0.001 BTCP (100,000 sat) |
-| `u` | 0.000001 BTCP (100 sat) |
-| `n` | 0.000000001 BTCP (0.1 sat) |
-| `p` | 0.000000000001 BTCP (0.0001 sat) |
-
-### 8.3 Block-Time-Scaled Timeout Parameters
-
-**This is the most critical section for LN on BTCP.**
-
-BTCP has 1-minute blocks (vs Bitcoin's 10-minute blocks). All LN timeout parameters
-expressed in blocks must be scaled by ×10 to achieve the same real-world security
-windows as Bitcoin LN. Failure to do this results in dangerously short penalty and
-payment expiry windows.
-
-| Parameter | Source type | Bitcoin common default | BTCP recommended (1 min/block) | Real-world time |
-|-----------|----------|------------------------|-------------------------------|-----------------|
-| `to_self_delay` (justice window) | implementation policy | 144 blocks | **1440 blocks** | ~24 hours |
-| `cltv_expiry_delta` per routing hop | implementation policy / BOLT7 field | 40 blocks | **400 blocks** | ~6.7 hours |
-| `min_final_cltv_expiry_delta` (last hop) | implementation policy / BOLT11 field | 9 blocks | **90 blocks** | ~90 minutes |
-| maximum remote `to_self_delay` accepted | BOLT2 policy limit | 2016 blocks | **20160 blocks** | ~14 days |
-| `max_cltv_expiry` (max payment timeout) | implementation policy | 2016 blocks | **20160 blocks** | ~14 days |
-| Channel funding confirmation target | best practice | 3–6 blocks | **30–60 blocks** | ~30–60 minutes |
-
-> **Why this matters:** if a remote party broadcasts a revoked commitment transaction,
-> your node has until `to_self_delay` blocks to publish the penalty transaction.
-> With 1-min blocks and Bitcoin's default of 144, you would have only 2.4 hours.
-> Using the recommended 1440 gives a full 24 hours — the same window as Bitcoin.
-
-### 8.4 Channel Parameters
-
-These match Bitcoin LN defaults and do not need to change for BTCP.
-
-| Parameter | Value | Note |
-|-----------|-------|------|
-| `dust_limit_satoshis` | 354 sat (P2WPKH anchor) or 546 sat (legacy) | minimum output in commitment tx |
-| `max_htlc_value_in_flight_msat` | 0 (unlimited) or % of capacity | channel-operator choice |
-| `max_accepted_htlcs` | 483 | BOLT3 protocol maximum (script complexity limit) |
-| `htlc_minimum_msat` | 1 msat | minimum HTLC size |
-| `channel_reserve_satoshis` | ~1% of channel capacity (min 1000 sat) | reserves the counterparty cannot spend |
-| `fee_base_msat` | 1000 (1 sat) | routing fee base |
-| `fee_proportional_millionths` | 1 (0.0001%) | routing fee rate |
-| `feerate_per_kw` | node-determined | initial commitment transaction fee rate |
-
-### 8.5 Feature Bits (BOLT1 `init`)
-
-LN feature bits are chain-agnostic; BTCP uses the same bit assignments as Bitcoin LN.
-
-| Feature | Bit pair | Status |
-|---------|----------|--------|
-| `var_onion_optin` | 8/9 | mandatory |
-| `option_static_remotekey` | 12/13 | mandatory |
-| `payment_secret` | 14/15 | mandatory |
-| `basic_mpp` (multi-part payments) | 16/17 | optional |
-| `option_anchors_zero_fee_htlc_tx` | 22/23 | optional (preferred over legacy anchors) |
-| `option_scid_alias` | 46/47 | optional |
-| `option_zero_conf` | 50/51 | optional |
-
-### 8.6 Shared Implementation Fork Notes
-
-All major LN implementations (LND, CLN, Eclair, LDK) hardcode Bitcoin's chain hash.
-Forking any of them for BTCP requires at minimum:
-
-1. Replace the genesis hash / chain_hash constant with the BTCP value (§8.1)
-2. Replace the BOLT11 invoice HRP with `btcp` (§8.2)
-3. Update all block-count-based timeout defaults (§8.3)
-4. Point the Bitcoin RPC backend to `bitcoinpurpled` on port `13495`
-5. Update the network / bech32 address validation to accept `btcp1…` addresses
-
-Also update any constants derived from Bitcoin's 10-minute block cadence:
-confirmation targets, fee-estimation targets, CLTV deltas, wallet rescan
-lookbacks, channel announcement depth policy, and watchtower/penalty windows.
-
-### 8.7 Core Lightning (CLN) Fork Parameters
-
-Core Lightning is Bitcoin-specific upstream. A BTCP fork needs a new chain
-definition or equivalent patches wherever CLN selects `bitcoin`, `testnet`,
-`signet`, or `regtest`.
-
-| Area | BTCP mainnet value / action |
-|------|-----------------------------|
-| Network name | add `bitcoinpurple` / `btcp` network selector |
-| Chain hash | `15c04ef0bc1856d6b1ec199ca25d0aa7e77c6114e2cb0649ea82bf3f82030000` |
-| On-chain RPC backend | `bitcoinpurple-cli` / `bitcoinpurpled` RPC on `127.0.0.1:13495` |
-| Bech32 address HRP | `btcp` |
-| BOLT11 HRP | `btcp` (`lnbtcp...`) |
-| Native unit | 1 BTCP = 100,000,000 sat; 1 sat = 1,000 msat |
-| Genesis display hash | `000003823fbf82ea4906cbe214617ce7a70a5da29c19ecb1d65618bcf04ec015` |
-| P2P gossip chain filter | accept only BTCP `chain_hash` |
-| Fee estimates | call BTCP daemon `estimatesmartfee`; scale targets for 1-minute blocks |
-| Confirmation policy | use 30-60 blocks where you want Bitcoin-like 30-60 minute confidence |
-| Timeout defaults | use §8.3 scaled block counts |
-| DNS bootstrap | empty until BTCP LN seed infrastructure exists |
-
-CLN does not require Bitcoin Core ZMQ or `txindex=1` for normal operation; it
-polls the backend over RPC. If CLN and ElectrumX share one `bitcoinpurpled`,
-increase `rpcworkqueue` and monitor RPC latency.
-
-### 8.8 LND Fork Parameters
-
-LND uses btcsuite chain parameters and Bitcoin-specific network selection. A BTCP
-fork needs equivalent new `chaincfg` / chain registry parameters.
-
-| Area | BTCP mainnet value / action |
-|------|-----------------------------|
-| Chain registry | add BitcoinPurple params instead of `chaincfg.MainNetParams` |
-| RPC backend | `bitcoind`-style backend pointed to `bitcoinpurpled:13495` |
-| ZMQ raw block | `bitcoind.zmqpubrawblock=tcp://127.0.0.1:28332` if using ZMQ |
-| ZMQ raw tx | `bitcoind.zmqpubrawtx=tcp://127.0.0.1:28333` if using ZMQ |
-| Address params | P2PKH 56, P2SH 55, Bech32 `btcp`, WIF 183 |
-| Chain hash | same §8.1 wire value |
-| Invoice HRP | `btcp` |
-| Coin type | use the same provisional Electrum value until SLIP-0044 registration |
-| Timeout defaults | use §8.3 scaled block counts |
-| Fee estimator | ensure targets are interpreted as 1-minute BTCP blocks |
-
-Unlike ElectrumX, LND normally benefits from ZMQ for prompt block/transaction
-notifications. If ZMQ is omitted, use the implementation's RPC polling mode and
-expect higher latency.
-
-### 8.9 Lightning Difficulty / Block Cadence Implications
-
-LN implementations do not recalculate proof-of-work difficulty themselves for
-normal operation; the full node validates blocks. The LN daemon consumes validated
-block headers/blocks from `bitcoinpurpled` and uses block heights for timeouts.
-
-What must still be changed in LN code:
-
-- Treat one BTCP block as ~60 seconds when converting user-facing time windows to
-  block counts.
-- Use BTCP's `chain_hash` everywhere gossip or channel messages identify a chain.
-- Use BTCP's address and BOLT11 HRPs for invoices, fallback addresses, and
-  on-chain outputs.
-- Do not connect to Bitcoin LN peers or DNS seeds; BTCP LN needs its own network
-  graph and bootstrap peers.
-
----
-
-## 9. `bitcoinpurple.conf` Reference
-
-### 9.1 Default Values
-
-| Parameter | Default | Source |
-|-----------|---------|--------|
-| `dbcache` | 450 MiB | `src/txdb.h:30` |
-| `maxmempool` | 300 MB | `src/kernel/mempool_options.h:20` |
-| `mempoolexpiry` | 336 h (14 days) | `src/kernel/mempool_options.h:24` |
-| `blockmaxweight` | 3,996,000 wu | `src/policy/policy.h:23` |
-| `rpcthreads` | 4 | `src/httpserver.h:12` |
-| `rpcworkqueue` | 16 | `src/httpserver.h:13` |
-| `rpcservertimeout` | 30 s | `src/httpserver.h:14` |
-| `maxconnections` | 125 | `src/net.h` |
-
-### 9.2 Full Annotated Config
-
-```ini
-##############################################################################
-# bitcoinpurple.conf — full node + solo mining + ElectrumX backend
-# Location: ~/.bitcoinpurple/bitcoinpurple.conf
-##############################################################################
-
-# ── Network ──────────────────────────────────────────────────────────────────
-# mainnet by default; uncomment for testnet
-#testnet=1
-
-listen=1
-maxconnections=125
-# addnode=node3.walletbuilders.com
-
-# ── Chain & Indexes ───────────────────────────────────────────────────────────
-# txindex=1 is REQUIRED by ElectrumX — incompatible with prune
-txindex=1
-# blockfilterindex=1  # optional: BIP157/158 compact filters for light clients
-# prune=0             # never prune when txindex=1
-
-# ── Performance ───────────────────────────────────────────────────────────────
-dbcache=450        # MiB (default: 450; raise on high-RAM machines)
-maxmempool=300     # MB (default: 300)
-mempoolexpiry=336  # hours before unconfirmed txs are evicted (default: 336 = 14 days)
-
-# ── RPC Server (required by ElectrumX) ───────────────────────────────────────
-server=1
-rpcport=13495
-rpcbind=127.0.0.1
-rpcallowip=127.0.0.1      # set to container subnet when ElectrumX is in Docker
-rpcuser=btcpuser
-rpcpassword=CHANGE_ME_USE_STRONG_PASSWORD
-rpcthreads=4
-rpcworkqueue=64           # raised from default 16 for ElectrumX parallel RPC calls
-rpcservertimeout=30
-
-# ── ZMQ Notifications (optional real-time updates) ───────────────────────────
-zmqpubrawblock=tcp://127.0.0.1:28332
-zmqpubrawtx=tcp://127.0.0.1:28333
-zmqpubhashblock=tcp://127.0.0.1:28334
-zmqpubhashtx=tcp://127.0.0.1:28335
-zmqpubrawblockhwm=500
-zmqpubrawtxhwm=500
-zmqpubhashblockhwm=500
-zmqpubhashtxhwm=500
-
-# ── Mining ────────────────────────────────────────────────────────────────────
-# MAX_BLOCK_WEIGHT = 4,000,000 wu  (consensus/consensus.h:15)
-blockmaxweight=3996000
-blockmintxfee=0.00001
-# blocknotify=/usr/local/bin/notify_new_block.sh %s
-
-# ── Wallet (disable if mining to an external address via getblocktemplate) ───
-# disablewallet=1
-```
-
-### 9.3 Notes
-
-- **`txindex=1` and `prune` are mutually exclusive.** ElectrumX requires `txindex=1`.
-- **ZMQ** requires `--enable-zmq` at build time. Verify: `bitcoinpurple-cli getnetworkinfo | grep zmq`. ElectrumX can index through RPC polling; LND-style backends usually use ZMQ for low-latency block/tx notifications.
-- **Solo mining** via `getblocktemplate` (BIP22): point your miner to `http://btcpuser:CHANGE_ME@127.0.0.1:13495`.
-- **Docker networking:** set `rpcallowip` to the container subnet (e.g. `172.17.0.0/16`) when ElectrumX runs in a separate container.
-- **LN node:** the LN daemon also connects to `bitcoinpurpled` via RPC. Set `rpcworkqueue` high enough (128+) if both ElectrumX and an LN node share the same node instance.
-
-### 9.4 Minimal ElectrumX `env` (standalone / non-Docker)
-
-```env
-COIN=BitcoinPurple
-NET=mainnet
-DAEMON_URL=http://btcpuser:CHANGE_ME@127.0.0.1:13495/
-DB_DIRECTORY=/data/electrumx
-SERVICES=tcp://0.0.0.0:50001,ssl://0.0.0.0:50002,rpc://0.0.0.0:8000
-REPORT_SERVICES=tcp://YOUR_PUBLIC_IP:50001,ssl://YOUR_PUBLIC_IP:50002
-SSL_CERTFILE=/certs/server.crt
-SSL_KEYFILE=/certs/server.key
-CACHE_MB=1200
-MAX_SESSIONS=1000
-INITIAL_CONCURRENT=2
-COST_SOFT_LIMIT=0
-COST_HARD_LIMIT=0
-PEER_DISCOVERY=on
-PEER_ANNOUNCE=true
-```
\ No newline at end of file