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 0x22688230b4f43ab67b44510057a0e7bc2d954d93b197449209d9b4cadb427660. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a521aef-69c2-4709-ae5e-e66986bd6ad9.json and https://artists.proofprofile.net/proofs/artist/4a521aef-69c2-4709-ae5e-e66986bd6ad9.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 0xfaffe765ac4560266fe233fe6084d7c74e605ad2dd69bc737c25802853d02750. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012400147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363d2631178f9999893b0c933243d344e6ef0e804d00b22dd8ec85bdad4c03f7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012400148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d48e21feada38fabae06d68c37f769db7b7e5313e22402c27cd1897b9249124. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012400149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84feed0359d5a529d96e778efe297a12a840dbdce8a361ef208d3d65c0c90805. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZAC012400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cae0b7a6c30bbb24a2947df60e629bae38d46687cd7b5b0eb3aa1f9bacdcb02. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZAC012301046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670e2710a2e640c1d97319c133d64be0d9d323b90c352cce9b8627a05c1f3afb. 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/ZAC012301062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0a28829c32ac11b0fd0222216856bcc909ebafa15128402fcff26079aa35ff. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012301048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe011927c9216472ff1d283d23b1f16ed94501bd617732357aa4ce5faba388c9a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZAC012301049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5421854981a19ec93797e3b651ce6e6d94a12be8b5d91bc3fe06f9f21bbbf4d8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012301050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb556c2a1830b8361ec1514c64d9cd4f8d188911fa3fdb685f766ad266bb10eb1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012301051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b8c08c379351fbee01bd2868b62e0cfac183a73b2d7c96db2774ac79787e51. 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/ZAC012301052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6080149d0e61a6ab04d1aac1554f1d50fe50f4df48def42972b62031f4909428. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012301053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b52180e210c06cb481bc72580f04c90c4f49a6a9beb27af9ba95dcd10cb7d1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012301054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94bace661b0e53848d1225733c92eeceac3760983e026fbf56c89c8ac189ed3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012301056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0cc61c0b357cdc7db922e9b94b6d3b5d86e4bdffc31242f645accc39ed6cd7. 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/ZAC012301057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b2496c309263e55fd47db273c882f574abe7ffa1343a458af9f6f874aacd88. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012301058.
Just Believe (CocoSA & George Lesley Soulful Touch)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2fb5e22329b8d5eeb25384c976af534a98fc4ff831f9156d9556792f2d6612. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZAC012301059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd367741e79637e8e15493a1efbe7e595b1663eed2dc9254128bcfd06ee7175fc. 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/ZAC012201389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb976480695a43a1c71d0bef30f1e90ef58eb866c58febb220f4b43b78890a74e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012201390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062588126c9479a2cc4a78d5d9442a3849bf2957b70e039a4a02cb31b7e9427c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012201391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d342ffab34862f797f5c2775728f6f314549132a031d717dbbb2ed06980438c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZAC012201392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afaaa1262832fe36a9986de3ae4caed13bced7939f507753ca145e8baaa78d5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012201393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d998e7bbc195773d1763d00985604560021d8bae51b28e39b945c4e0778ca89. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012201394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7e254d46c0955405d1ff2b301e434cd23340cdada99151c51c4cc394a732c2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZAC012201395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7a507f3714582f1fb1d5d7a2d4648bbb9b9089167249379573a7eb636d5877. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZAC012201396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4e15e43698b2ba5b2e01c4d957f60af1c3b5f9a71aada837231a5aa592cd12. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012201397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bcd4124fc8403cb0c84527563b1da51f3a26661b90e05c3ca61317d0b9f76d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012201398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c2576a425dbdfdde11774aa61ba322d473ce6eaa6f337431a12264034a1c88. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZAC012201399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4744cc0c1c938bdf9a1e9a6d46cb14c6026a657872513076f6de65218b5dbfaa. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZAC012201400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee182ea58c3b3113d180ff8ae084e4cc847f4ea4fe8bd9cb7738278f4ae85021. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ZAC012201401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b8765e83f8ede2ebe06b9cbb7d9482e6ab182d8cbc3f84c2d2cce96d89da5c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012201402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde53659649d74717ac2295d7801c04259915ee27967eeb53dd3375e3d4bc035a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012201403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a18bea41afac3d7b879e5cf795a15a90775f69458c80233237869ef8f8b3d8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA56E2315054.
Nhlitiyo (feat. Brandon Dhludhlu, Jay Sax, Omit ST)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ff3f54dbbbe0d96e900353bd280fc2654bfde616e948f5006ab729317125b1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZA56E2315055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9efe7a80ca6e3d5fc7f3513df8c95530b351d1920aad462c096d5db51b65323. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZA56E2315056.
Umdali (feat. Murumba Pitch, Brandon Dhludhlu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a3296b45cb9f9eab0cb2174cb2b41039de01cb41ada2297b950b09df7ca6ea. 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/ZA56E2315057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa106c47455bef728336d1a54823b895aefcfc977ec6334f8e2415031707e0115. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA56E2315058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b38dcca192210e6b3175701ee67c27566086231767a9bc9ac3d26383218ff1d. 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/ZA56E2201399.
The Gospel According To Artwork Sounds Chapter II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c7502f95b30fb7d2051573196e6e5a7a8498f7e458a9eee9a536a8b760423b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZA56E2302126.