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 0xa715f662e7d1a3e66e55cad6053eaf6661f737622836b11e24ac11b705cba0fd. 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/6de31c2a-2068-41c6-9eca-e30721923b0b.json and https://artists.proofprofile.net/proofs/artist/6de31c2a-2068-41c6-9eca-e30721923b0b.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 0xa0158704d37a61194c6ce960cb7aebf148c37c4822b20617ba00107d32de84b5. 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/UKXN22049236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c85ee01c3218b305c862be59c0048abbdd0dd21fff4fc870cdaa1a94752f22. 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/UKXN22049237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae148907e891c186cf41db95c349fcc35d4907be904e16aa1c8b56e9fabbcdad. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKXN22049238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ca4eac8116aaf5fbe616a9e8b539d532ce308307f2183a60801a18266d5474. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKXN22049239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0158704d37a61194c6ce960cb7aebf148c37c4822b20617ba00107d32de84b5. 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/UKXN22049236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c85ee01c3218b305c862be59c0048abbdd0dd21fff4fc870cdaa1a94752f22. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/UKXN22049237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae148907e891c186cf41db95c349fcc35d4907be904e16aa1c8b56e9fabbcdad. 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/UKXN22049238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9bbfc1cf7c3f4ed94f4a9e9d975302f5e85f249e7c5629a964b89c81a33ce07. 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/GBUM71703258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ddf60fd9a374a01ed0ad88344c8ec20f52437cbc305199cc4c683fef6dae50. 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/GBARL1800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31d7dc75c6f3e83060e6e4f51bb0e6eded9305e54f292f6ae9c8f2e1214839f. 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/GBLFP1796552.
Not That Deep (feat. Deepee, Swift, Sleeks, Inch, Littlez, Reeko, K9) - Section Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab90f91684c79ded537815821e0802c08009b7300d894f05b90e74471afa0da. 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/FR2X41426518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77088849d2d0fba93851c2092f37a6dd32772ec1b3e9004985b9248920f99e8f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMFME1942388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2317ac9ddcf7e1d0c14ade99a92798589de3c1f2b448e18c6d683b246c4d4a28. 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/GBMA21929036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbf2e261d600d79609362c24cc4c12a3a3d07485a166d2879aff26e8177665d. 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/QMBZ92095963.