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 0xdf03c9488b06469c9d137cc86d9061223635e5305ce96e1aba9938571f906795. 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/69d3d4a9-2c2d-4e24-8a28-4b583d3593ba.json and https://artists.proofprofile.net/proofs/artist/69d3d4a9-2c2d-4e24-8a28-4b583d3593ba.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 0x5ae509ba78677072c212e1933a3e3993f03aabef96360b62a6ed0e30a7e33be9. 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/USHM90539474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a1a88b7f5ca42515016beb9d0d8f5bf766174a3dfd2cceaaff8c1bfca8e07b. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USCGH0631890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89279c4f3db5fa92a0afeb47e7bdff0f3b545e9c0391d5874aec6b9725757ced. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/USCGH0631891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cf628e5f3995f32e2d543ae9f6725b5026bba012ae112dcfd466e2c1aa1f62. 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/USCGH0631893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728f163974240ccd2597af4c6cfc34ae6f65c73e5318a1043abfa18eb6c206cd. 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/USCGH0631894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78331274dd1f9ec45c3ea1df177dfc8dcf4816efbac99577f449f8b13d25568b. 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/USCGH0631895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb6d6a7d954bf88e83c33910b7d450384b858bc23372490e7d8dc311faeaa5e. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USCGH0631896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4ba73596f059851bd3afa44e7f3dac732320de5d2ba1a08de50392e0b8e515. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/USHM80691121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161d98b4cbe459d6ce2c7ee46d1572bcc19ee741e23f6cf5ef3f5f73dbede639. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USHM80691124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7511194c2ccea0969b1392f0d98404f78927342267ceec1edad9779011ea4273. 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/USHM80691125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498b6924eb619d1c02b4c90cf5a6397283099b531c7debbcf898f4cffcd30200. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USHM80691130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d30bc602e20232749bcaaf21456f3c230facef2512cc3dadcb8ec12ffdd872. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USX9P1366410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161f4d6b6827699c7a11de3016e20814f81fb524141e76b00bf8f9cec109d270. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QMAAK1554776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f2c4d7ebd13d611595ca400005532dfc4b56bdd4c2a75e3c4e25e43f49f59b. 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/QMAAK1554777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fe86db87f8b8248fedbaf1aff763c7c03055c5301660ba951593a99e942819. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QMAAK1554778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0bd8ac85913468ed89aea2a557ecce316e71de6ceca537c7b06bbe77b1d7123. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/USF4Z2200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409d2df768b776ae32541f74eea7263bbad89a50475d7518604cc086212aecac. 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/USF4Z2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daeef6778e9e5d6b579c5c5c692758eb6c3e6d83791289902c274a188029f95. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USCGJ1950520.
Yoga Music Mantras & Chants, Vol. 2 - Sanskrit Chants for Yoga Class
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3309ef5c2eeca507d4e28a35e0511a383c0f1c9497a209e61d8d9add1c9a00cb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWS41415506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2433b24db70271253407246121d58cd1d5a5c87f8d685a807888432c77035959. 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/AEA3A2305471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5180301033c551db251729d1cbe785db7e686f2441b090650e12b88e5c72aa86. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/NLL6R2301289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c5780b38303bbdf5da0e5d5838a25769b3929183214f321b50e6c3952d867b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLL6R2301296.