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 0xfe205eaea1a15f2ebb2afccdfae7e16af66b38c19bf91df151000de4b7058628. 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/458b2624-4a7d-4120-b667-a1894b648731.json and https://artists.proofprofile.net/proofs/artist/458b2624-4a7d-4120-b667-a1894b648731.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 0x5bc64cc29066dca01f2c5387790554a903d05460c6bf3f58d5f1973b7fc9048c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZAPG1832883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d70ee4c74a430f1fa1fccaabec1590c8c4b3626799c6002baca8e59b41bf67. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZAPG1832886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea656ee1388cb603bee870b528e2c7a1794db7d0e3fbaa73a21e2eea3e21c3d0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ8LD1970988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9070eec99897606c2223523ca341cdce0fdb25844c05b30e7e19fc128d3780. 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/USSTT2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e7a657e68b0a6acddf8a7db5546910a9924bb50e3b222985d76cacb9a6ca9c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USSTT2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc884f9504b26172f69d5045498daf8b1d67686340f2f3e07c88f52305701f1. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USSTT2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a8f32075435206277504242b279d71adc698bb6541d0c50aa83e009502ec43. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/USSTT2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3de312d5ec2d85fdc2c901328c8ccf62baa86242123aab51317d1835b84e7c0. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USSTT2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e80cea01d77945b9e496a8b7a69ecf955decd807c8c81ebaf3d2c80f1641883. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/USSTT2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3230bf45c59bc339ea4f990bcc033146fcbab9a46587b9a161f439284ce5bf8b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USSTT2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16972fcb6420c45eff4294c847f55e9d31fb7eb69596b67f29f23fc33a80a45a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USSTT2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051029545b5a4d26d5dc38120779e5fbe181eec73d0a8cabc230810b4e55ab70. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USSTT2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e7a657e68b0a6acddf8a7db5546910a9924bb50e3b222985d76cacb9a6ca9c. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/USSTT2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc884f9504b26172f69d5045498daf8b1d67686340f2f3e07c88f52305701f1. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/USSTT2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a8f32075435206277504242b279d71adc698bb6541d0c50aa83e009502ec43. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USSTT2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3de312d5ec2d85fdc2c901328c8ccf62baa86242123aab51317d1835b84e7c0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USSTT2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e80cea01d77945b9e496a8b7a69ecf955decd807c8c81ebaf3d2c80f1641883. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/USSTT2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f4f02ecffc56252c8590396bb6dfc828940c1f425233d357565ee11a6e9c69. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/USSTT2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3230bf45c59bc339ea4f990bcc033146fcbab9a46587b9a161f439284ce5bf8b. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/USSTT2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16972fcb6420c45eff4294c847f55e9d31fb7eb69596b67f29f23fc33a80a45a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USSTT2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec86a1561fc933370615ccd6dec92f81b802d520e55f9caf5d895f70e1bd361. 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/QM4TW2207496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec86a1561fc933370615ccd6dec92f81b802d520e55f9caf5d895f70e1bd361. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM4TW2207496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b252fd116d4f46c830eb0b8d0e81d3af7044da365e6deeae6e38c2464307d4. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/USSTT2300170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9953eada6b3ce8d63e9a46f0cf5db75511d30061b50d0dcc3e111a3fd8566832. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/USSTT2300171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c967e4525af2bd3af53b0392c53b101e2e63e449f04a637713805b776338e3e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USSTT2300172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb1cbf2e6c381fa0116243ae15e51c5f4da00ae78714210556f9ea8c109b8e2. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USSTT2300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297eaba5b792d075c5d3bab9eb95a4fc261590c3b08d7157e9ab66c20233958d. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/USSTT2300174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30fddaea3449b8fbdacbcb2779a3ce15ef5702037b1df25fa17a92c6aa5107cf. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T12:45:27Z), 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/USSTT2300176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9d43eca7f08c26601931b214b4c35f27fb316591ec1ef6beddf3a4b731497b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USSTT2300177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99f878b29a8304e753186bb5e06bbe220e03f35ea463ca441d67ffd932eae23. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USSTT2300179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c72e60062c316fd4a89ebe7932cad64446dcd6144730c54cb05b02139e9da74. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/QM6N22471591.
There Is A Light That Never Goes Out / Stick Season / Motivation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2380760f7174999d51652096d2217ffc6f17c4e070cb738a58bcb66691e272. 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/USSTT2400142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf098b80fd4d038f6914b6b7c912e811f7bad2b3093eb7bc2b2c541adcbeadb4. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USSTT2400118.