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 0xd832107b2808b440605486ccc3b0eda49e5bde6526844a4412ca02610ba966e2. 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/41bb108c-bbb4-48ed-b939-1a6b89ecc4ff.json and https://artists.proofprofile.net/proofs/artist/41bb108c-bbb4-48ed-b939-1a6b89ecc4ff.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 0xd518932e7a6922428ebf7ec8ee728dea573d43fe096813c2e496019e13c002fc. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UK42F1900285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05ba95b04d25e389754cbf355d7a80305857ded89b8f7ff51698fc5193439ff. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/UK42F2000094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7802a2c5f579b65afadba0937491b73537fa1b3022d94139966644df41ed7fcc. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/UK42F2000441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ce3e0a21effadfe385acd4efb3315db763e919582e6040bb3949222bb68be6. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/UK42F2000650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940152ae1af78e5f618cfa16f3d56c186cf296ebc178a996575e5dac700bda6e. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/UK42F2000651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbca703502134ffa855d303f67efd5c64fbf0699e04055f6100d77f31a5265b. 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/UK42F2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf8a8b9cc2ab8e32068735ad61a27943c259e79df0f6672fc9dcc62e0fa3f0d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UK42F2100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7ea72ecc5dd059de8b9b5ff9b289531963fcf5379a72c50e366c40b0bdebfc. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/UK42F2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8ac8dd9f5b71fac93816c7ed3ef983768edae5016135c7c22afe26bae25762. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/UK42F2200086.
Running Up That Hill (A Deal With God) [Acoustic]
I Don't Want to Talk About It (Acoustic)
Sweet Dreams (Are Made of This) [Acoustic]
Sweet Dreams (Are Made of This) - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab38392fe2856277666ebcfc5af56c43411ce755aa164cfccde0f8af834d6e2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/UK42F2200257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6f8eb58c7536d22bb7392c6244bc8e6e8d3304d441484f321a6a3637201d5d. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/UK42F2200239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee740e2147b38065547697b19cc0fb7239df89c076bcb24035a496ab97aabd44. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UK42F2300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad69f5c76afedaa5d7e855967135c4d41dcc3e656866a44ae29e63fa2ec1ee2. 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/UK42F2300121.
Crazy Little Thing Called Love (Acoustic)
What a Wonderful World (Christmas Holiday)
What a Wonderful World - Christmas Holiday
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6481d42c7115153c1b23ed5b87acb2ad34f23b04f2a830a9974b3060c067f750. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/UK42F2300257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe807f0dd8dd7630f3d822544fad9fc9513bf89e74e504262c6c6e0b432b55b2b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:22:44Z), 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/UK42F2400131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145efdeb68ccde71935d29365887b4976df13640980a2e913af1319bd208b446. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/UK42F2400950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414adf55769e8fe2d85a9da5e71a3ba650d931e85580cff1b50c1de4e685d91d. 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/NLZ541900337.