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 0x4c2f950be15f47a5b22ee5a455c741beeafa42b692bc7cc2b16fe43bfa29a35e. 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/d6bbdf46-1ccb-482e-8523-b930c4ea2f36.json and https://artists.proofprofile.net/proofs/artist/d6bbdf46-1ccb-482e-8523-b930c4ea2f36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Corporate Motivational Instrumental Music
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 0xda4287b85d11bdcdcd3e3b5cbe7b4bd228c09734248023a0029267f2002af649. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/TCACP1692801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fa6100e507714073f45a550baf0b5b9bfc302bc4f52485282b17849b050f3c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCACP1692803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0520233aca859aa21495aa444735af425af1cc690ebe7e400733e2e49fbcceeb. 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/TCACP1692806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb9446af90301006c9fb255cdbe033bf199e6891d4249fb5a6fab3e253d7c68. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TCACP1692807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5672df276ccc3f1672743ca4e96521c476175e249f45db06591c1f7c2e19b607. 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/TCACP1692808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a41cdfea2915e03892e232355ee02d9f74fc6ed077b3911d139221265fbcb38. 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/TCACP1692812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32e901a844f14825c76bf87829da470fd54f68b0b4d8b03d2647861fd3023dd. 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/TCACP1692813.
Inspirational Background Music for Videos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295c2e90ecf91c646753efc80a66575a2adb48bb9456f1da7fe35ed5e4490ea6. 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/TCACW1601640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26bc424ca6c437ad35bccf6dfcceba04ca56fcc42d506749769701669abca5d4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCACW1601642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34504917503303f88616b702efa3ff9f0f64d43a00bb5bec094bded9422de4be. 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/TCACW1601647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff968abf7128c78d9fa3b205cfb0e1dbe2359393de0a22303ee14ad8bcad491e. 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/TCACW1601648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9469eba7bd2f54c2c139fbaa2754bc7a5adf5631e9c5b50336aed974be3dba. 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/TCADA1705692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a211c14e008ccdf2fdb4842d4afe563f266dcd775143b61f20ebeca0192018. 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/TCADA1705698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9c5452dd2691c06f0e677d11838f5a3875c84394c77d15bd031b15090228d7. 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/TCADA1705700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b630c435dae68f0051c96c893b40f5ef36cc174430ab383b47924c3106fe20. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/TCADA1705702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c5dc7d137c791f6712ca6ad2e0caa02a4b364f759bdf2e150c81c0af5198fb. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/TCADA1705705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e29052249290a62d5f403186c0a86cbb1125c8d493c290da3ad76ea01483b9. 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/TCAEU2087655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb7aae47d6e27b2bec843be0214690af7aa011d74d45a349e85105ed4da8cb9. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCAEU2087657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef09dd40707e11059808d47607bc793d259e6f753f7bbf684a959b3c4c7130d9. 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/QZK6G2135561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de381c500cc7c273ceac6538641894a6f4b902618e357e134319b8735449724. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QZK6G2128284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03504528570dfb4f804e3590a995b323f69ea922517398927863645063d246f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZMEQ2126302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe752c84c9f09f2fb2cd4c67e6607c2aded5929f05f5d14b3d6d6ea3eb831c5cd. 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/TCAJF2515601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803b967415a45ae25aecc19f3ab4ff7a8ca13c98375c3fa76001d193795366e7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAJF2515617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064e259d92576be71b3ed9bea2b7db11501ea43ef3f738467a1bf3140cfe6e02. 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/TCAJF2515648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e4635aa0606b3f1854c88d5487b0590991d65e9b946c2f47da4b36d7474ca3. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/TCAJF2515659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f98a5bae60a9a697d292beb73271c301a9de30f572d57302651f482faf2855. 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/TCAJQ2557525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffe2e6198465c7e136fb0a5280aa2deb024bc1673c084ffab5c7e0b4dd17568. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/TCAJQ2557561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84eaeb0c3b2ad3d84bc60860bdb5534d51c0a8d1abadbf79f0521631f1ae8247. 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/QT65Z2547330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1bc389a6d8a8872e09117e7bc083e4be16b653b744171fab798e37dd7288dcb. 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/QT6622582790.