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 0x5584fe1d6198c86fff61bcc60f56512345682593da9d4348686bd5aaac1d078e. 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/44e2cebc-1404-4089-a498-261cf59e31d5.json and https://artists.proofprofile.net/proofs/artist/44e2cebc-1404-4089-a498-261cf59e31d5.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 0xcd841394296248bc0e26ec66c052b89b18e58cd26fa2275ac9fb3d774bc6b194. 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/QZNWW2300489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7a9a493032d33fe822259dd817b1c506c9780b6f2ace2cc1c210c91f668437. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZNWW2300493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43630572fbe490d86f8d347d6cea7507c668bfe946a68a2add8d2fe90559099. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZTAX2301771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2394b073c88772a74ec35611e338fcc01eb57077f904b054146cce858b5bc4. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/QZTAX2301772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ebee29c761b032c8a4a6eaae6da91ae54e125154c2657c01dc0e444487ff5be. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:20:20Z), 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/QZTAX2301773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1131fe712e829707cedaa804d7c8965710aa36643dd939dd1fc7f7f882824fa. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:36:55Z), 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/QZTAX2301774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5d58cdae26836b53850d8f972f98ab142e4171d0e27dec933e7d72e3c93ea8. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:23:18Z), 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/QZTBF2342118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea26d9d3d01158762e6db08cdb0b693c430d301d0957e5d58398041db364cdc. 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/QZTBF2342119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ad07c2ab079f988e604087976eefe547e531a0a9728cc5fef8987b7dc3b0ac. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZMEP2475671.
Call of The Prophet 2: In the Desert but Not Deserted
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddd930718b0d1ac7652bc3facfdc011779e81a7bd7492b59c12d2d6badb83fc. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:36:26Z), 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/QZWFK2492200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54fd8dc80817e099b5c933b2193d7a16ff0e29a73869c21545f7b955a071405. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:42:25Z), 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/QZWFK2492207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065269e51fe93b1753cb6c46ffe4ced2605f0a76f4052e30320489a65fc5168d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZWFK2492209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a14996ea608f1d7c354d2bfcda18716ac2f506a4507a393415e484919dbc23d. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZES82510997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6009a1246d6114996bb0727ae4fdb154193f17622781ceba6ecc274c1e3ffa. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZTB62596416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5598df32098e23a103ef2486e3909b391dcade368d9ae098f40be651db949f8. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:21:12Z), 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/QT3F32527810.