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 0x7b6777d89c05ef1fc6f1239385d7933d4ba39d425866a392f483e5befbad6d69. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34e0b45e-19be-4364-8fc9-c516f1ac8fc4.json and https://artists.proofprofile.net/proofs/artist/34e0b45e-19be-4364-8fc9-c516f1ac8fc4.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 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 0x10a07a01f7e948cff3d67085459de74d90f12304cbf20e407dd7560def9642cb. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/USZXT0826109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fa6e047f9c72ff843bba947c87b3d12044541900bdc774b8b52d2acce7393d. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/JMC781000101.
AfroFunky (Musica per l'Africa) [Kuerty Uyop Remix]
Come Back Tomorrow (Haffi Come Back) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eef4eb48cf28a06218f14d723179e17c35664688506970fd8c9ab87abc40a87. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMPAQ2050252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353b8a6cbbfefcc724b7a6453a24b8150ec4d6a91507dd330131aadf00b8285d. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/TCAAZ1125080.
The Prisoner (Jerry Bouthier Edit) - Cecile Remix
Kitsuné Maison Compilation 10: The Fireworks Issue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d18fa807fffe25f9f4b1606ae37aaaba8360b2ccbe169fd3b7310f21aa2934. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRU701000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c6e73672eea56780a343471b0dd40304d580ac042d9929c68e396527f55a5e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR59R2070944.
Mafia & Fluxy Presents Hot It Up (R'n'b and Dancehall Mixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf034dc784291faf556d600345a92574cde844b641a3c214653ed886b6964a54d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR6V81478844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fed20b1467c6a16deb2bd8c73399932e6f9915e530f53a82761fd18768ee551. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR6V81478853.
King Size Dub Special: Illbilly Hitec (Overdubbed by Dub Pistols)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ec9a0109d32337e178442a9130cc781e74d30096238b6c401d3879b38f35c1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEH261309212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749f583750ecdd43cc5af548d9e2d86d0379ff7f571f020353777e25d5d2f10f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BEX041491001.