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 0x8586e69905ea88b82f586f1f5c17bd939eea9879b56d2d5c8671b83d94ec6824. 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/9889ead6-57ac-45a0-b329-edd897cb6bc6.json and https://artists.proofprofile.net/proofs/artist/9889ead6-57ac-45a0-b329-edd897cb6bc6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Working from Home - Background Jazz for your New Home Office
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 0x6f06e26a1ff01bfee0460af1b9af01bf8d28125543c333eaaa9846d7ddb78baa. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/GBSMU7806372.
Background Jazz for your New Home Office
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ec3310a2f925e25946cd9b3d8a5731e8506a56d6e9d20b810768636d463efc. 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/GBSMU7806377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39017a41aa7de83c4506744a1f2d63388aae53c6c77c584319c7389154da1cb0. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:02:10Z), 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/GBSMU7806380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1512aee38c8e710c052bc7e4f322bf52f7eb8eaf122507a4db6bd65e2f5ae8. 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/GBSMU7806381.
Working from Home, Vol. 2 - Background Jazz for Your Home Office
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eeba0a5cf0b90e356a5a559a93a03791af0954958c16bca09673400c116ff30. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/GBSMU8142832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911a570f59c2b6e43d30fcbd3a8a978790b8069f2cba12287b7e08dbe4e1ea93. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/GBSMU8142835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0526a8e0099ee89885bf370917e9f22e13086c62113cba189fd0214736484e. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/GBSMU8142838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafe0c4c512866be7873664d5f67483851b3678a7d127637fc3b5f858620a12f. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:10:51Z), 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/GBSMU8841654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2becd600fdc2b6624fe3407a7c942f5c8c12e411c6db2b14d60cbb85929fb999. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBSMU8841655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890ad3d90b101d746e16e450439420d2b491e1697944e808c4124e74ec7a2291. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:21:46Z), 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/GBSMU8841656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4165eccc258c3bd60f5586e360327dda0be1a196d95b805a447b5e8151a1f1d. 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/GBSMU8841658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113ad44b3ea84fbcf99fb08e5476d41545d8c4bf124f386d9c2c17c16bf18856. 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/GBSMU8841659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee90c50fdf3dff49419426e7cd154187d9479c26e8a028a603ab34edef0e2585. 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/GBSMU8841660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba4d253e0bb4b818a140e6ebb9c38fa9412e14aea69e5ce8db5a0da3ba9e64d. 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/GBSMU8841662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089a70f6fd1f045f1448686df43bed39e214c98a1bcaabfb677f4ae9f8b23e22. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/GBSMU8841663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599f339b0249804cd6ef653bf29ccdc81120565e7d870f2cceb83ddd39ac55ca. 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/GBSMU9265802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ef3ba6ea816b1d86291c431db5596b3f8c72188cb2803e73d1a9ec78b075b0. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GBSMU9265803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0798d07cd96854b21c354ab894fca45c3b764108c56be0dbdadd40cf7f0c0466. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GBSMU9265805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2680b79ec179f0ec2c6f7144fa95179f41ce880f3b13dd0c2748415683ab76. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/GBSMU9265806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7846d1e3099cca41c49874fac4ddba1c89fac7c69177efeab9a096ef85c5271a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBSMU9265807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658e3a459cf1b31c14e75d44923d169c9298b003b5754aeb6c30742af14cee99. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBSMU9265809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8968694e0b6da606e8b39768e932df075fced1c4306fdac6c2c012e700e8b1b7. 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/GBSMU9265810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9876536bc0bbf4f10c316fdb22c4c666453be215573f9f4d5c9dbcb2ee12d0e4. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/GBSMU9265811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6cec36a692c29e73a23e299db29bcf74d306a1b873109c1ca4b6a3421f4e80. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:43:22Z), 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/GBSMU9774731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f078c4214dabf8c9b2acbfd0feb25b46c2791c4b9132e514b90715739b767db. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:49:48Z), 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/GBSMU9774733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4288e5ffc9326fd532db760ca26a15baf3e0b8e5cd8d26bf019e47cbf9a70d94. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/GBSMU9774734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb417082ef73dddf75d0172fb54e4ca8e7123eb5a84f3d38bc8f3d6f7b7982c3. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GBSMU9774735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead0b3f8a74a3613cad1620285e7dbb8b91abc01cd88eb70787b74ac669ce645. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/GBSMU9774736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa30f212c72bf261e6b75e852b40fadf718e733f9ef4f3c7fb581d84ca644657. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:27:40Z), 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/GBSMU9774737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cdbea804e20330f83e3754491dacf684d10077006bfd2ec6be6eb4cf363752. 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/GBSMU9774738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef84ba8effed0b075f3dd380212a6628ac5c40a8301ad918c580ea467e294e77. 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/GBSMU9774739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca51b6bf984c107a5e11a53b1afeba617d4c32db7c9297d49e3a2bd49aeda8e2. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/GBSMU9774740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f20169d51cf49ba2754d3af11fe66fd7ef255b2eb64f06ea311485306b3c190. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:09:58Z), 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/GX8LE2317328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c320557a5e101f3fb7e193d29452a986413a7116166393c052356f9f64c3aa5. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/GX8LE2335511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c59ee4dd13024285e7bcd0464608099c54432211c1e3be983bc6ded1173d68. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:22:46Z), 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/GX8LE2395518.