docs: Announce Nano (XNO) availability across documentation and templates

README.md

@@ -10,7 +10,7 @@ Local, policy-gated signing and wallet management for every chain.
 ## Why OWS
 
 - **Local key custody.** Private keys stay encrypted at rest and are decrypted only inside the OWS signing path after the relevant checks pass. Current implementations harden in-process memory handling and wipe key material after use.
-- **Every chain, one interface.** EVM, Solana, XRPL, Sui, Bitcoin, Cosmos, Tron, TON, Spark, Filecoin — all first-class. CAIP-2/CAIP-10 addressing abstracts away chain-specific details.
+- **Every chain, one interface.** EVM, Solana, XRPL, Sui, Bitcoin, Cosmos, Tron, TON, Spark, Filecoin, Nano, NEAR — all first-class. CAIP-2/CAIP-10 addressing abstracts away chain-specific details.
 - **Policy before signing.** A pre-signing policy engine gates agent (API key) operations before decryption — chain allowlists, expiry, and optional custom executables.
 - **Built for agents.** Native SDK and CLI today. A wallet created by one tool works in every other.
 
@@ -56,7 +56,7 @@ ows sign tx --wallet agent-treasury --chain 8453 --tx "02f8..."
 import { createWallet, signMessage } from "@open-wallet-standard/core";
 
 const wallet = createWallet("agent-treasury");
-// => accounts for EVM, Solana, Bitcoin, Cosmos, Tron, TON, Filecoin, Sui, and XRPL
+// => accounts for EVM, Solana, Bitcoin, Cosmos, Tron, TON, Spark, Filecoin, Sui, XRPL, Nano, and NEAR
 
 const sig = signMessage("agent-treasury", "evm", "hello");
 console.log(sig.signature);
@@ -66,7 +66,7 @@ console.log(sig.signature);
 from ows import create_wallet, sign_message
 
 wallet = create_wallet("agent-treasury")
-# => accounts for EVM, Solana, Bitcoin, Cosmos, Tron, TON, Filecoin, Sui, and XRPL
+# => accounts for EVM, Solana, Bitcoin, Cosmos, Tron, TON, Spark, Filecoin, Sui, XRPL, Nano, and NEAR
 
 sig = sign_message("agent-treasury", "evm", "hello")
 print(sig["signature"])
@@ -110,6 +110,8 @@ Agent / CLI / App
 | Spark (Bitcoin L2) | secp256k1 | spark: prefixed | `m/84'/0'/0'/0/0` |
 | Filecoin | secp256k1 | f1 base32 | `m/44'/461'/0'/0/0` |
 | XRPL | secp256k1 | base58check | `m/44'/144'/0'/0/0`|
+| Nano (XNO) | Ed25519 | nano_ prefixed | `m/44'/165'/0'` |
+| NEAR | Ed25519 | implicit hex (64 chars) | `m/44'/397'/0'` |
 
 ## CLI Reference
 

bindings/node/README.md

@@ -64,6 +64,7 @@ ows sign tx --wallet agent-treasury --chain evm --tx "deadbeef..."
 | XRPL | secp256k1 | Base58Check (`r...`) | `m/44'/144'/0'/0/0` |
 | Spark (Bitcoin L2) | secp256k1 | spark: prefixed | `m/84'/0'/0'/0/0` |
 | Filecoin | secp256k1 | f1 base32 | `m/44'/461'/0'/0/0` |
+| Nano (XNO) | Ed25519 | nano_ prefixed | `m/44'/165'/0'` |
 | NEAR | Ed25519 | implicit hex (64 chars) | `m/44'/397'/0'` |
 
 ## CLI Reference

bindings/python/README.md

@@ -76,6 +76,7 @@ print(sig["signature"])
 | XRPL | secp256k1 | Base58Check (`r...`) | `m/44'/144'/0'/0/0` |
 | Spark (Bitcoin L2) | secp256k1 | spark: prefixed | `m/84'/0'/0'/0/0` |
 | Filecoin | secp256k1 | f1 base32 | `m/44'/461'/0'/0/0` |
+| Nano (XNO) | Ed25519 | nano_ prefixed | `m/44'/165'/0'` |
 | NEAR | Ed25519 | implicit hex (64 chars) | `m/44'/397'/0'` |
 
 ## Architecture

docs/07-supported-chains.md

@@ -39,6 +39,7 @@ OWS groups chains into families that share a cryptographic curve and address der
 | XRPL | secp256k1 | 144 | `m/44'/144'/0'/0/{index}` | Base58Check (`r...`) | `xrpl` |
 | Spark | secp256k1 | 8797555 | `m/84'/0'/0'/0/{index}` | `spark:` + compressed pubkey hex | `spark` |
 | Filecoin | secp256k1 | 461 | `m/44'/461'/0'/0/{index}` | `f1` + base32(blake2b-160) | `fil` |
+| Nano | ed25519 | 165 | `m/44'/165'/{index}'` | `nano_` prefixed | `nano` |
 | NEAR | ed25519 | 397 | `m/44'/397'/{index}'` | 64-char lowercase hex of pubkey (implicit account) | `near` |
 
 ## Known Networks
@@ -74,6 +75,7 @@ Each network has a canonical chain identifier. Endpoint discovery and transport
 | XRPL | `xrpl:mainnet` |
 | Spark | `spark:mainnet` |
 | Filecoin | `fil:mainnet` |
+| Nano | `nano:mainnet` |
 | NEAR | `near:mainnet` |
 | NEAR (testnet) | `near:testnet` |
 
@@ -107,6 +109,7 @@ xrpl-testnet  → xrpl:testnet
 xrpl-devnet   → xrpl:devnet
 spark     → spark:mainnet
 filecoin  → fil:mainnet
+nano      → nano:mainnet
 near          → near:mainnet
 near-testnet  → near:testnet
 ```
@@ -133,6 +136,7 @@ Master Seed (512 bits via PBKDF2)
     ├── m/44'/144'/0'/0/0   → XRPL Account 0
     ├── m/84'/0'/0'/0/0     → Spark Account 0
     ├── m/44'/461'/0'/0/0   → Filecoin Account 0
+    ├── m/44'/165'/0'       → Nano Account 0
     └── m/44'/397'/0'       → NEAR Account 0
 ```
 

docs/quickstart.md

@@ -20,7 +20,7 @@ pip install open-wallet-standard           # Python
 
 ## Create a wallet
 
-A single command derives addresses for every supported chain — EVM, Solana, Sui, Bitcoin, Cosmos, Tron, and TON.
+A single command derives addresses for every supported chain — EVM, Solana, Sui, Bitcoin, Cosmos, Tron, TON, Nano, and NEAR.
 
 ```bash
 ows wallet create --name "agent-treasury"

readme/partials/supported-chains.md

@@ -12,4 +12,5 @@
 | XRPL | secp256k1 | Base58Check (`r...`) | `m/44'/144'/0'/0/0` |
 | Spark (Bitcoin L2) | secp256k1 | spark: prefixed | `m/84'/0'/0'/0/0` |
 | Filecoin | secp256k1 | f1 base32 | `m/44'/461'/0'/0/0` |
+| Nano (XNO) | Ed25519 | nano_ prefixed | `m/44'/165'/0'` |
 | NEAR | Ed25519 | implicit hex (64 chars) | `m/44'/397'/0'` |