BIP-85: rename Nostr application 86' to 9000', bump to 2.1.0, list rust-bip85 + dart-bip85-entropy reference implementations

Author: ethicnology

bip-0085.mediawiki

@@ -8,7 +8,7 @@
   Type: Informational
   Assigned: 2020-03-20
   License: BSD-2-Clause OR OPUBL-1.0
-  Version: 2.0.0
+  Version: 2.1.0
 </pre>
 
 ==Abstract==
@@ -425,49 +425,49 @@ OUTPUT
 
 ===Nostr===
 
-Application number: 86'
+Application number: 9000'
 
-The application number is the sum of the alphabetical positions of the letters in Nostr (n=14 + o=15 + s=19 + t=20 + r=18) to avoid the confusion with NIP06.
+9000 is the zip code of Funchal in Madeira, Portugal, where this specification was written during the Sovereign Engineering event.
 
-The derivation path format is: <code>m/83696968'/86'/{identity}'/{account_index}'</code>
+The derivation path format is: <code>m/83696968'/9000'/{identity}'/{account_index}'</code>
 
 Uses the entropy as a Nostr private key.
 
 Identity index <code>0'</code> is reserved for future protocol use.
 Account index <code>0'</code> is reserved across all identities for key management operations.
-Usable keys start at <code>identity >= 1'</code> and <code>account >= 1'</code>.
+Usable keys start at <code>identity >= 1'</code> and <code>account_index >= 1'</code>.
 
 The resulting 32-byte private key is Bech32 encoded as an <code>nsec</code> per NIP19.
 
 '''identity=1, account=1'''
 
 INPUT:
 * MASTER BIP32 ROOT KEY: xprv9s21ZrQH143K2LBWUUQRFXhucrQqBpKdRRxNVq2zBqsx8HVqFk2uYo8kmbaLLHRdqtQpUm98uKfu3vca1LqdGhUtyoFnCNkfmXRyPXLjbKb
-* PATH: m/83696968'/86'/1'/1'
+* PATH: m/83696968'/9000'/1'/1'
 
 OUTPUT
-* DERIVED ENTROPY=7f3313b1bdeacc4f395c666b473982550cdc66c225fd7e7b0f5d11d33cddde31
-* DERIVED NSEC=nsec10ue38vdaatxy7w2uve45wwvz25xdcekzyh7hu7c0t5gax0xamccsyuyesn
+* DERIVED ENTROPY=552ad1d578fe1bc927cec9612651652b07c52dde4017911bc23bc953568075ff
+* DERIVED NSEC=nsec1254dr4tclcdujf7we9sjv5t99vru2tw7gqtezx7z80y4x45qwhlsmxapst
 
 '''identity=1, account=2'''
 
 INPUT:
 * MASTER BIP32 ROOT KEY: xprv9s21ZrQH143K2LBWUUQRFXhucrQqBpKdRRxNVq2zBqsx8HVqFk2uYo8kmbaLLHRdqtQpUm98uKfu3vca1LqdGhUtyoFnCNkfmXRyPXLjbKb
-* PATH: m/83696968'/86'/1'/2'
+* PATH: m/83696968'/9000'/1'/2'
 
 OUTPUT
-* DERIVED ENTROPY=41fbfba9227f7d261ccb90f61264fd0b38e1f762108c31135f8fc138329594ff
-* DERIVED NSEC=nsec1g8alh2fz0a7jv8xtjrmpye8apvuwramzzzxrzy6l3lqnsv54jnlsuxjsql
+* DERIVED ENTROPY=4fd36c0061a65db375b4350f44bb62a6d7f716ee93bd0f59887ac50b35fa8b96
+* DERIVED NSEC=nsec1flfkcqrp5ewmxad5x585fwmz5mtlw9hwjw7s7kvg0tzskd063wtq34wlgr
 
 '''identity=2, account=1'''
 
 INPUT:
 * MASTER BIP32 ROOT KEY: xprv9s21ZrQH143K2LBWUUQRFXhucrQqBpKdRRxNVq2zBqsx8HVqFk2uYo8kmbaLLHRdqtQpUm98uKfu3vca1LqdGhUtyoFnCNkfmXRyPXLjbKb
-* PATH: m/83696968'/86'/2'/1'
+* PATH: m/83696968'/9000'/2'/1'
 
 OUTPUT
-* DERIVED ENTROPY=a159a41860a18457855511334a3c813430468ec3c1ef17700d4917d0e881a45a
-* DERIVED NSEC=nsec159v6gxrq5xz90p24zye550ypxscydrkrc8h3wuqdfytap6yp53dq5gdpd6
+* DERIVED ENTROPY=b2d3b48992d46f98beac0196c4e258417087e467dbec1503342785368f4402c2
+* DERIVED NSEC=nsec1ktfmfzvj63he304vqxtvfcjcg9cg0er8m0kp2qe5y7zndr6yqtpq7q5y44
 
 ==Backwards Compatibility==
 
@@ -484,14 +484,16 @@ BIP32, BIP39, [https://github.com/nostr-protocol/nips/blob/master/01.md NIP01],
 * 1.3.0 Python 3.x library implementation: [https://github.com/akarve/bipsea]
 * 1.1.0 Python 2.x library implementation: [https://github.com/ethankosakovsky/bip85]
 * 1.0.0 JavaScript library implementation: [https://github.com/hoganri/bip85-js]
+* 1.2.0 Rust library implementation: [https://github.com/ethicnology/rust-bip85]
+* 1.1.0 Dart library implementation: [https://github.com/ethicnology/dart-bip85-entropy]
 
 ==Changelog==
 
 ===2.1.0===
 
 ====Added====
 
-* Nostr application 86'
+* Nostr application 9000'
 
 ===2.0.0 (2025-09-19)===