Deleyaman is a French-American musical band founded in Normandy, France in 2000 by the American multi-instrumentalist of Greek-Armenian origins Aret Madilian from Los Angeles, along with French singer
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 0x7d4b3f91436ba1babad25ab64eadf4c54923e9a2027b59337ea92bbb018dc413. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7528f7ee-346a-4e52-ac78-10ee20903bda.json and https://artists.proofprofile.net/proofs/artist/7528f7ee-346a-4e52-ac78-10ee20903bda.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).