Ressources is the fourth studio album and third major label album by French-Israeli singer Amir Haddad. It was released on 16 October 2020 in France by Warner Music Group. The album includes the singl
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 0xb70f2b7b3eafb55a99a431d727e10b01b6654a7b19f8c1cbde3c5f91ab08677b. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30123308-b37d-4d85-98f5-6121af4c0d42.json and https://artists.proofprofile.net/proofs/artist/30123308-b37d-4d85-98f5-6121af4c0d42.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).