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 0xfa2d36d1ab1e60609c264fe64d394f9b96f03cd18047bdf7a151629a8692a7d8. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ddfd661b-1b16-4b27-a455-e448e82b5889.json and https://artists.proofprofile.net/proofs/artist/ddfd661b-1b16-4b27-a455-e448e82b5889.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 0x625952a2637d5efbe0cea2224f771598858da52fdf00cd0b18c8509971ab287d. 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/DEQ021905911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e3062278cfa709b174ee5ed88ccec4495f99cd91562b5d3c9d53c10dd4d780. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKQU2000320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3625eed2d56205ccaff942be0aa8909d08a311f0dedaad26a6bfb6067aabc06d. 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/GBKQU2000321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52098aaa5a4b8d4a7a396d7e45031090f9e30fcc5c8cc2ce12c5849e35035cd2. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/ITH642008337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41722faf2aa781c04dda64ce5359141afae14507b6af0689abd506f657ec135. 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/GBLFP2042201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd350f3f4f6c9f32d1afc4148bb43c2ef035f88875d3ba0ce3b01e87ab940284. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/NLHR22100763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1673de2f3aeb61a0afda7dee5917e2c9d3d16ae4c80da417d4d91d000390ad. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/GBKQU2339969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7152ab62015c3dfcbc07450cb4851fa3a65e84b3f07ab6a2859bbf2d5ebbad64. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/NLCK42422398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e591aaf7b3de09dcc554e5fc4fddc71a80406dc22113ac56979f777860394d. 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/QMFME2465483.
Dancing on the Dark Side - Senses of Mind Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153d2df26e9da92c4af3e9cdebca59fe312ec284896ea70f6e2694a34a9348d5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US83Z2308124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc6896a5509e37747bd44defbb7edf04215e8e000d60d8d013be122ac04b2a1. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NLHR22000284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6f623258b4f44a0a775ffb65cd1bd43fa351f182e01b24ec88f57dd0a49c8b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBKQU1969610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03dd16340e14f2acd6d3866c59362cf405183d716237ec981c6a6a67ba0a4576. 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/DEZN82105119.
Spirits Of Africa - (Pole Folder Remix) [Mixed]
Global Underground: Adapt, Vol. 3 (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ca3b72bd90013dd903bfeaa0685afdba26f5094de9741d765805b80a4f48d8. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/GBHFW1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33eed6f7b19edf8cc0f5bbb0fcce56fe53d9c0b4750710f9bfd5d1b200ebf55d. 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/GBHFW1900031.