thumb|Treasure of Villena, one of the most important prehistoric golden tableware findings in Europe Treasure (from from Greek thēsauros, "treasure store"θησαυρός , Henry George Liddell, Robert Sco
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 0xe0c7c2b29970009b68bad6c5e68ac637fb6dcaa13b29f1a7e000789579f8bb90. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ed96538-1082-4b00-81f9-e27f75aca932.json and https://artists.proofprofile.net/proofs/artist/7ed96538-1082-4b00-81f9-e27f75aca932.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Like a Boss (feat. Fire Niyah & Delirowe)