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 0x4ddd0b15a1db27301ccccddcbaf0584512000edd3b8b37b8c64a3caebff01bed. 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/0d267583-04f2-4993-a635-f2371d3dd5f2.json and https://artists.proofprofile.net/proofs/artist/0d267583-04f2-4993-a635-f2371d3dd5f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Younan Music Present: Tribal-House EP Pt 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 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 0x9731f828b55168011b2fb6294c12c70e7f7f046b7a7e20efa995023baede7216. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/GBHAD0800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74e47ae191eef9fcab1470b70d7ce6ab8f5518d7785181eb85bffcb4187c1fe. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBHAD1000088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c87a116d5cd263874cd084249040e8764086f9b39b40d1be9a004e66fe31914. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/GBHAD1700130.
No Time For Hulk [Camelphat Re-Fix - (Erik Hagleton 2018 Vocal Edit)]
No Time for Hulk - Camelphat Re-Fix - (Erik Hagleton 2018 Vocal Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937713de26f7890e4cd19fa407f1bb73b459de1e08e5785b48ae1373146c935f. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/GBHAD1700519.
No Time for Hulk (Camelphat Re-Fix) [Erik Hagleton 2018 Vocal Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f0add630fbd2ad28f8a822f7787b00f89ecd0ad0883d314c2235900906ecb7. 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/GRLP11831241.
Taoma EP (Incl The Deepshakerz X Black Savana Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546ce6f6d653c2ccd544c5389d4fa06fd117aa80bf7195a9c25e5b818357d934. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USK9N2404001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb54217ac783c2aac4a401c3cb976e72f1f81fe658beb760b0343259cbdf781b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEPI82205631.