Abondance is the name of: Abondance cheese, a type of cheese Abondance (cattle), a breed of cattle Abondance, Haute-Savoie, a commune of the Haute-Savoie département in France Abondance, Martinique
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 0x5d6890a067e310b5b2271b3689fce0f37166cb0a9ba324773a6ec9e051ec2c20. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/006c2755-d832-4339-acc4-68a56e7b21cb.json and https://artists.proofprofile.net/proofs/artist/006c2755-d832-4339-acc4-68a56e7b21cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).