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 0x83fe6ae44790b21469d00fc7ebb5cc31b2fb6151cc53fc4aab2b446fd1f17846. 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/e6ecd119-0f15-445a-b145-f7fa669d3240.json and https://artists.proofprofile.net/proofs/artist/e6ecd119-0f15-445a-b145-f7fa669d3240.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 0x0ec22a232184fcf569a2d7168958baa9867e77d8a1f52f8c033fea5ae02c0387. 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/ITZN72000118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61bd6cb8e7c476448b3729371c10c72c4adc86aa4b924066dcdbeae0c968bf3. 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/ITJ511600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc46c530118ea6e05e289697154f66fe6afc7f29f5b52ab43353478e7662839. 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/GBKQU2461124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78421ba1d57999a3bccac004cde9318207daaf1d1dc8f70ddf4dfa1c6ac62da. 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/GBKQU2328293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f90b7a8c30ba90d63aa15799c810c390b6d4d7bdc3b3a913528097bcd76272. 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/US83Z2148579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56272e77fe8ea623c89f1b28469eaf61fc244bf4258702985004f1f6a02c1231. 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/ITZN72110146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61dff5380ac2470262529a75f03273a376fed4b4bd2cab776a2080c848dce8db. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:55:15Z), 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/ITZN72110148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb97c5631b0843f8af51bb1cfa18d432355284f8ad6532c4d03928f216f05f2. 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/GBKQU2104480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8e9e6f2370ff5a69a847cdd88ee3e2cd0adb6489c35e8f77b77d3f37260c57. 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/NLCK41081537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf7e358d307b0f3173ec35d7cc5ad5afd974bba82c0947dd91f0468c4ac6d5b. 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/NLCK41081539.
Ghost Ship (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c010030dff663064da7a57c5d3c4f3c617b8d4da6e8ec220d6d147c6b09a7c0. 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/GBKQU2084334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c795b4c4bbc981e3d1248b67d1ffe47b14ea957009f2a3a80b5ea7ea1552df. 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/GBKQU2084335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f54564df72c9fdf44bfd1432812accfa787354f34473ee5895d2d909fd453ae. 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/NLF712008175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc332fd423d0da1ba1da8e56aba8f7014eef7bc3b9cb59efa98cc5ec4613305c5. 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/NLF712008176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f054b0ab1c0f647a11c765beb6d77dbfe78c505a4ee5795c243f184b0141d6. 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/GBKQU2067752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18078c92972856102e762a356640364d2043ff598cd00887213f41a6ec29d3fb. 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/ITG5T2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406f5e51f07d6fee8831aae1404b588617514f8426a79d3980991a0568adb9bb. 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/ITG5T2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe344cdb4ed643be68e958869bc59188d4b1e3f1d0981c943e47101f2a8004039. 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/ITG5T2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0414a7daa8da515863a44a26b5bba3fc69ce4f0eb27ad3718b181f6fde2b61a4. 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/ITG5T2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86851b78d642644e957be05abe4b8d0c00638496f5f60b47d55b56527ea4d698. 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/GBLV61913521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c70da94ba7597e4786b8117a41076820556a83dff01ca48d4dd13a867082d0. 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/GBLV61913522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2933f5154954b11fb2cea9f16d06ed3214db20e2895c73b9b8ad55dfc3446c. 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/NLF711911562.
Inquisition/Underworld Feat Natural Flow Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61bd6cb8e7c476448b3729371c10c72c4adc86aa4b924066dcdbeae0c968bf3. 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/ITJ511600017.