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 0x01657fad1bba5e1d3b9189781da0f39b306a9c7dfcaae0aeac5ed79826e25802. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0e82369-fbb8-4ad6-bf9e-c36c09ac7fa3.json and https://artists.proofprofile.net/proofs/artist/b0e82369-fbb8-4ad6-bf9e-c36c09ac7fa3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x56d6107f00f9d3102a30d97bcb56c95f37e4e1bb0f868bab96ba8200e8f04cda. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR43D1703000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafdb552a76be8e99af86d14fc9a0649e1a2c11a0386244622e48262e77c058d0. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/FR43D1703020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a67837b7782fe00347d82de508d29d8a34bd5c0f1a754f953cdf2bc4783331b. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:05:50Z), 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/FR43D1721190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53204e75ec98d7a09b57e129106e43d0f4a6eba0c9d79ebf3f3a29dc00049798. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/FR43D1721140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58e3cda2b763042957757851784bb6a503ca8a2a97bcf011d67849967bd6c4b. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:56:28Z), 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/FR43D1721170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79e1c6a4b46679fea13bb6077a68dd16aba9ce7112c22712d2f46a46ce20e07. 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/FR43D1721130.
Best Of (Les indispensables de la musique marocaine en version originale)
Maroc, le meilleur de la fête marocaine Vol 1 of 2
Maroc, le meilleur de la fête marocaine Vol 2 of 2
Jarra Dance (Chansons marocaines Chaâbi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81beb0a97f64d5f90e2a75f4ac05b6885cedaca18a68b936be0dbcee16209666. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/FR6V81783015.
Spécial mariage, vol. 2 (Le disque d'or du Maroc)
Chaabiat maghrebia, 21 titres non stop enchaînés
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f35af86bc32690e1bc0786d6730e9649abbb61171ae07bb7da59374b6a64086. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR0O70793408.
Stars of traditional music from Morocco (Maroc)
La plus grande soirée Marocaine, Ambiance live non stop
La plus grande soirée marocaine (Ambiance Live non stop)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5c6a41aa15df96ec3366e4764286cdbbc9cfbef450cef47eada4a0cfd70c9d. 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/FR43D1000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba2661a67e783227e416a5b7ba1a35d76500d71ea89ac65970c66064ac1bb6b. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FR43D1000060.
Soirée marocaine: L'esprit du chaâbi traditionnel [Original Masters]
Barakashow Kids (Comptines et chansons pour enfants Maroc)
La plus grande soirée marocaine, non stop ambiance live