Anarres is a fictional planet in The Dispossessed, a 1974 novel by Ursula K. Le Guin. The work received both Hugo and Nebula awards and is regarded, along with The Left Hand of Darkness (1969), as one
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78257af2ded51c82a93580c22e798335b3c751bc56dc115ce1723be833d9d7b. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c06910f2-cf12-474c-aced-11bdf93a363c.json and https://artists.proofprofile.net/proofs/artist/c06910f2-cf12-474c-aced-11bdf93a363c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).