Diary Mode

Every round, the console can produce a proof — a SHA-256 fingerprint of the game state. Optionally, that fingerprint can be posted to the XRPL Testnet.

How it works

1. End a round — generates a proof hash of the full game state
2. Create a wallet — free Testnet wallet (test XRP has no value)
3. Anchor the proof — post the hash to the XRPL Testnet
4. Verify later — anyone can check the proof against the on-chain record

sov end-round          # generate proof
sov wallet             # create testnet wallet (free)
sov anchor             # post hash to XRPL (optional)
sov verify proof.json --tx <txid>   # trust but verify

Only the host needs a wallet. Nobody else touches a screen. The game works perfectly without anchoring — it’s just the diary that remembers.

Security

• Proofs contain hashes and state snapshots, but never wallet seeds
• The .sov/ directory is gitignored
• sov wallet warns about Testnet seed reuse on Mainnet
• Proofs include player names and game state (scores, positions, promises) — share only with your play group
• Only the SHA-256 hash is posted to the ledger; the full proof stays local

Why anchor?

Anchoring is optional and educational. It demonstrates:

• How cryptographic hashes create tamper-evident records
• How public ledgers provide independent verification
• How trust works when you can prove what happened