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 0x5cc0e8eca2de15743a724914b24011bb482f1c3d6064b4561e20ca8eda23422f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bfd13400-2eed-4978-b226-828558b49d0c.json and https://artists.proofprofile.net/proofs/artist/bfd13400-2eed-4978-b226-828558b49d0c.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 0xaf9973807ff9d7f63243b1b3e9aa65d158fdfa3f8540592079ff0e27fe470207. 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/US3DF1934641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223a96b748adee80de20482d435395fb48194254c805f30a9252084cf72ac388. 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/US3DF1934649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bfdaecebdbf235f1bb54fcfeb0edf975ebccfbebb31c41f7572016c00003ac. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QZES92257071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd7bccf241dbbfe46e662867d681ef38cf1a744878ca922fc31ca224866344b. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZES92257073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10248a69b4a4a0722a6bd45ae6fae5da9cc27e22ad0b75aff4209dea84ee8389. 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/QZES92257074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8767d92dfe79af3070fa03ef78f06b31c668aa6bb1a4097dd792dfb23d527ecc. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZES92257079.
Overture Rising (Soundtrack for Trailers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2644b267ee3d4963c612ea52ab4d819fa0728032af88021135b4b342ce6042. 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/QZK6F2365110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be7ddf7df41b4d947ce691980561adecd3a4745b450692837267ebe01f59458. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZK6F2363792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc454d99236703748d39bec69422c955785b6d9e19eb58ce58274fed0da1c8cc8. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:26:42Z), 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/QZK6F2361683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8791e17060948da5c1b8b6724e848f28c5d689b0b63fbff9f6658ec6f17aa5. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZK6F2359750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa839e6f170d3397e002311195f7bceabc92f56506d8ed18d07d5b82d084334d7. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:42:38Z), 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/QZK6F2361696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b38b5c4142f5e12d29fe9c6f30586eb5daf02b21728515914529cf95c64e8f5. 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/QZK6F2361697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a81bd382b1fed78237515b9637516eaa3143389761a40d5745dca059d10566. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZK6F2363794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfc0e1260668bb81ad5864324cf8b62990d22bd93f1d1802074cba7ca248cb1. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZK6F2365113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d4cd36166f09eb9e84b3a3a7d49c413358f084eeb66cb1f76e9fb53e49dd58. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:38:54Z), 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/QZK6F2361706.
Cursed By Beauty (Soundtrack For Trailers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dae25fa7d4a7779e6b9506e8f7f9c1d2e9fc4fd9324156705da04af9b63ba79. 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/QZTB82399187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea94dd0ae5825460b77ed46a5211b4f6c10297618a0b55ca0812a1edd848be9. 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/QZTB92301625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a06d6783dafe234785399e2451a3adef58402d631481f38a2ff7a7aa09ee8c. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTB92302181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51fbb443c1f81bea502660ebffca1b2daaed0055a7b99ffea2917652b9ce9bd. 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/QZTB92307131.
Tennessee (2004 Hans Zimmer Cover / Remaster / Tribute)
Karma (2024 Mea Culpa Trailer Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a49a52355aeedb98ee4be3113e7d274725b2226178961d70b0493785b3a181. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:40:13Z), 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/QZDA82407699.
Tennessee (2004 Pearl Harbour Cover / Remaster / Tribute)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610767d6c306ba1e8d14a6f74a5c1394dbcc2f186243a8e797dfbe8ef9402bb2. 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/QZHN32546611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fc4b229f3663bffead27c2502fc7dea025c2085de953c8971ce2976d563739. 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/QZHN32588864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f33e7b3356ddc225ef1cc663b3dbf1fc02c306e02a47a142db848d25f0f8f58. 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/QZHN32546625.