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 0xf77881b7e4402414a0e9e48951ddcade8026ff18b0d6040f072ae91c9969cdf6. 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/c1e6dc20-8b1f-4c3d-b8d5-307e42df261d.json and https://artists.proofprofile.net/proofs/artist/c1e6dc20-8b1f-4c3d-b8d5-307e42df261d.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 0xee544fa18451de06149087ce3fc65f662fb019e68678a1ce1926b9ec45e85fc9. 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/USDY41609581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f18da2c233847f7a42bba477326f78f08f9e0d726f9f94b1a371b7dc800a07. 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/USDY41609582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac01a3baf71b4602351437d5875cb87fef78814e3e937d498ada369d8606698. 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/USDY41609584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a651bd91b751396492bfb799049a2763b0a9c86abde19c4da03b9d84e2c863. 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/USDY41741714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45c3c5b70c7496c38f9b29c859839dcc2856f59b81a73119f060230921de0ae. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USDY41741719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2b69700c4c0a0b76e4967ff75b3202ba43f8a55ed7147b19c93d732b42a0c9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USDY41741724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd2c3deb582cbb622a5b50c2c631148694e2a3adc4801ea653f2a6c5a1983b3. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USDY41801236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecdc2b3a55e096b9d15a46f72daf39c76d6657d57741fa3c886acbda0c9e60a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USDY41801237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a18983a1020e3532d4a4dd8e235fb8f33402a286c3998de4ba5232d340d41e4. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USDY41944613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333fedd84ae1d4d1bdaa1693e2dc7e82a1ee040b3ddfc82fb845c1241f3efca4. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:37:38Z), 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/USDY41944614.
Gracefully Broken Medley: Gracefully Broken / Songs of Intercession / At the Cross (feat. United)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f22c054fd65a5ab06776df75ddedd01979a20b3bf1162089810f0df1af239c2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:00:40Z), 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/USDY41944615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607ce41f1b4384bc7219d62ce3c6e2156cd7050d40da3fb23d7a446c73bf8825. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USDY41944620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f820bec45b87f4feeba888814ce4720be0b9d1ac051818ee783b06d38d5d766. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USHM22036361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a539b42fb9d3c53a513ea8b9b772ae5402cd3c4097a487d7c17363cd0ddda75. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USHM22059222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed39b1340ba1bb2678a2fdb2502958b2cc6aee5189e4d69aa6b9993f2e8ae0c5. 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/USHM22059224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a1fd9db7b0cb1b8215b38b6739b289dcb86074988a4c4b2431a940644bb884. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/USHM22118775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfd40d91009ef9a5d4402f00886cd2295912bd3e4301afb81cce650c32524aa. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:11:05Z), 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/USHM22118777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c8544e40c1c3634764142abae46fe75e7ff4ebef49d1c84a59d20de3cb3409. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:16:13Z), 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/USHM22118778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93540e74cb14e5689d20a45c07f8d307b4992ec7e9c46daa20936523a4381e6d. 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/USHM22118779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4293b2a165a10f03e2c42cc0babbe7411bc4b1ac9f5be3e989fc226d21d39eea. 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/USHM22118780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd486e9eb9b5af3debd8843a66a18831c725d1344cb319c6a55d30c9029d193cb. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T16:54:45Z), 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/USHM22118781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3b668dbd8a4e7066d708a975992bc923403cc20093760f232ab3916d1ac0f4. 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/USHM22118782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0411749c35b16e559f72cd8f56c6ab46aa98421af8c8c4a8b09d964370b4ae3. 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/USDY42238984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77ed8a06b310b79efd9952d18768e9d86749a363913a94f99c99b7ba1235220. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USDY42238985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ead978d099c819e6fa5ae0e4177c6e71334f752f8287ca73dbc250fa8cc308. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USDY42238987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b4b8c4ed82619b6ddb520e599ec95bfd7f3f324ed8b669d7fa56ecc2db09e3. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:31:04Z), 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/USDY42238988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd158acc751d4e88b191d05285e416dc4be51db299c995abdc1fde1582460d8. 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/USDY42238989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe714740838c1b42bbb119946daed02e29bbb595f62d7aa939cd363873dd19ea4. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:04:14Z), 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/USDY42238990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c43cef63036249a4936a7c1298fa3438774330e9d30f1f9e7844d9b59eeb99. 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/USDY42238991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f60cc165a788e83a0457f1d213fcbc6c7b8a61207ef14dd0ebd6a8052c097a. 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/USDY42238992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756684e7b64dfc2f5eefe90b927e2214e206033497c5bf933d1ce77fc42de328. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USL4Q2320200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85761f9dc8174c588899f5b806583e5e8120431df5a16241ccda6d7d4fce678. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USL4Q2320202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdfd6806643d920058beaac8ed3006e5df12c02291cbdeaf8df64a61ecd2f0f. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/USX9P2499989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d069eb191cf26f11f19ee04ce434743db3092cafd35c876c85847b9623dbde0. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USX9P2499990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6ccddc97e07af1233248acca013c2f89d478b9867b9cea1a9e0d343e7da0ed. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USX9P2499991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916865fcfefb79d98bd567c0b3d62c1833a8baf64ab20e40ea4000da21413728. 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/USX9P2499992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2018d711fb052111c068e38f182909a412dd4112c66ea8ea04b04a8dd9c4bf8. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USX9P2499993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619f800341e3894b5c433661aefe9845677377eb054c3c52ef515c5ffa0ab230. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:10:03Z), 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/USX9P2499998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1a7f32fe9656b45c13ba684be72a5232e55a4e9c70037e6538594d706c6586. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/USX9P2499999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc422c234c718a29edc6d7b3f2477eb4d1ff10a3d63ec8f48e86620c41c3823d7. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:11:01Z), 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/USY242400001.