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 0x994ade7cc631578c5ecbc515606b51a15d6bea90d4646d8474bb1d282eeb4540. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3853371-a401-4ec3-9dc1-2debaf0b8db5.json and https://artists.proofprofile.net/proofs/artist/b3853371-a401-4ec3-9dc1-2debaf0b8db5.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 0xf66428077b9063a1e7667d27c840b4bdb9bd78b3f4334a6cfe67f9c5ddaf0c9f. 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/DEZC62250204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef6dc7825723cba062477eda6f2caf1d99f16b3fc3e5cd25ce07307e28e78ca. 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/DEZC62250207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee90fe6adafbf194ac832baa6702c07f1c9dd0e950c4d365520ec68ee90e8f2. 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/DEZC62250208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8694c388d04a91a1b4ff98130ae056ecbf583857ce7931bc551e6206e821a1. 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/DELJ82088871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5271bfd4bcc0a14f34ed5930e93d5a5159baa96d40214a4db69f655af9852ec. 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/DELJ82088878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e85ebf519d5d7f491fa3d3a0382bf1ad58aaf08499ab369a8cd95ca79bc922. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEQ022281490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ac3c90db766b8e010c35e4f59c61e6be3a12b6687d6a31586568f84881979b. 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/DEQ022281494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3e8aa1ea1b0d3730085712fc61c7d361dae2b1bf887aab6de2d661e43bd510. 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/DEQ022281495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7acab10c146975478dd9e66c2961e4d9a08d6bad72a5590e0115ab64d5b7d3. 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/DEQ022281497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687335b89c7896d13a4e81d81bb4c98b2d0cc0c1d0db0b19d283c1caf3147999. 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/DEQ022281498.
Ranko Presents The Intergalactic Funk Affair
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6834b9e2c0efca649cb0d2176b252f260fbbcdaa13b18f93fe17a33926eb717. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T15:40:01Z), 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/DELJ81959845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe40f54710e349f7f08a0748c9b83d9115cc9e288cb35806f1cad7851532c41a. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/DELJ81961485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03209812e4661aafbfa749e49ee04f5a68d281544d316460fd42fe5e9aa2010f. 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/DEZC62161560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7506f9ea153022cd0bcedfeadde54d406a93e04578e85546e19ef62f4b7d35. 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/DEQ022009119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61080a4575906a33e7a8142e6ade75c1f43e0afe3ca5e3c660466b114ea83b9. 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/DEQ022009066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35ea8390c82ce42efdd8739358b33d5bf0cd4d8f6ef3cc102e905798953c412. 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/DEQ022009121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27df5558ba352b021992a6abed4144902d9c012c3d30af6fede4ef14fe89e959. 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/GBLPF6779932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eebac121b6a0fadcb95988d8ebd3eabfb1da459d202806a5982512b2be1d148. 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/GBLPF6779933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b2e92442d8118f860bad21d6162da84649b70b193fc96be9eda695027b370f. 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/GBLPF6779934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5590b990bd5bba7c3fa0f1bd6b3af008c0f5673923d97ead263fc98800e45d55. 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/GBLPF6779935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc49d3bcbaa3d727428e40a3b638fbc617ab76b73c827fb429bf1cd932d8d43. 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/GBLPF6779936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3fb5e4ce77f9ca23d278491b0ce24b27667af32aa6b0534b5dbc0631301677. 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/DEQ022110857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96548ccddcc2e4685d7bf1ea6cfe4ac1550c318b92617565936fb2098b0f4074. 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/DEQ022110858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266d451b8d38d2fe0ea692ec28857e3a7475c65359ee48079390fa64ff023e38. 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/DEZC62419411.