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 0xaaef86829a08429bca4bbd04546e2b71aded572f27c5b9ee808b854c26ae8314. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f40231d-31f6-4c96-8315-9c9caa3fd9db.json and https://artists.proofprofile.net/proofs/artist/8f40231d-31f6-4c96-8315-9c9caa3fd9db.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cheba nagouane & Le Maestro Oueld Melal, Vol. 2
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30045cb4bbad8bc257f06d4dcfd77f4903fa2a31e557ff429f4396a73bb01646. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2432866.
Ma Bkawch Lahbab Ma Bqawch El Sehab (Min Tekarhouni 3lah Tebghou Swalhi)
Cha Rbahtou Ya Li T3assou Fiya (Nwakal Rabi)
Sektou 3liya Ha Hay (2024 Remix, Version Guasba)
Rayi Yarayi Ma Andi Zehar Fel 3rab (Nwakel W Ncharab Gal3ouli El Gualb)