thumb|A bottle of "O.P. Anderson", a Swedish akvavit. Akvavit or aquavit () is a distilled spirit that is principally produced in Scandinavia, where it has been produced since the 15th century.Lichin
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca98c8b98d2009e10bac8769c40b5831c8179f81583b70569dfa96e1b718934. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d82f1c2e-b10b-4839-861c-c74b3f2f4d90.json and https://artists.proofprofile.net/proofs/artist/d82f1c2e-b10b-4839-861c-c74b3f2f4d90.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fire's Peace: Calming Soundscapes for Relaxation