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 0x4dc42140077cee61542d2de6164fbf8da130cd0ee81da46b56ed666c211e0a92. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/150f1947-f0aa-49c6-9227-17a6420953a8.json and https://artists.proofprofile.net/proofs/artist/150f1947-f0aa-49c6-9227-17a6420953a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nekdeb 3likom -Lamour Maak (Lbareh Cheft Mnam (MaSHup Ray 2024)
خلي ليام تجيبك عندي | Khali Liyam Tjibak 3andi
خلي ليام | Khali Liyam Tjibek (Radio Edit)
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 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 0x321794c165351f9533d8d0d80bb2c2161c1856606dfa2c916179eac1ecd116b1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZHNB2581404.
Qalbi Fil Madinah قلبي في المدينة High quality
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91a985a6f00aff1798bcb67061d254db655f8387a590fc138280ed7a317ba8f. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/QZHNC2514193.
Qalbi Fil Madinah قلبي في المدينة speed (Radio Edit)
Qalbi Fil Madinah قلبي في المدينة slowed reverb (Special Version)
Atetha la mour عطيتها [Special Version slow)(slowed reverb]
Atetha la mour عطيتها [Special Version )(speed up]
Atetha la mour عطيتها - Special Version )(speed up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0409b29893e3833aac269fc4e116a4a71448c797da1ec029298ed6c8b29bb39. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/QZK6N2529594.