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 0x45ac6c3c5ca9566ee8841593fc8eb4d8332f4b06b585cbce8a7bc04f4d9a90d8. 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/7b306796-2b30-4253-b5b1-0b49ed566901.json and https://artists.proofprofile.net/proofs/artist/7b306796-2b30-4253-b5b1-0b49ed566901.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 0xd46e514a96096e9df86548bd8c3ca31f56bff0e0ec340e27ef94128b0ea4c3b4. 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/USCGH1994786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a388edbadaedeee7ef7eb46bdc993add04efb18c6d7aaa509a9dae834608f99. 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/USHM91430718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ee302178ab8f9cd116599e8e345b7aa6057cb4142daf5b2d489c18ea485335. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USHM91430719.
Higher Than the Clouds (feat. Gary Pinto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cca89bb99426acab3723c9d771df31a8c07d44ceade4ef7ad2cdadb008415e9. 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/USHM91430720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d14077c595b001c9729adf8ddfa8508b87930714edb26e13b3e6aa338b435cf. 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/USHM91430723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f78d40c69f7eb8911c2eb0a090afbcf8f12cd5f8de99ca890f66ff1d28473a9. 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/USHM91430725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc1a8e6961ae1267aedbebd58498567cf7f4798ecb5a26d46caa28b4a72bbff. 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/USHM91430726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5e772f04491b4c806c3003648cabcba92bf5c461eb152cc121340ae78dba25. 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/USHM91430727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a74db314ad8c7b04496ed48a85a460ed8219a973b2df4c4364527fa316e2fd4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM91184137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fe9056f21984317299dc979d90ecc97370dc74e50b74c786fb40ca7d24be39. 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/USHM91184139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7f00d97fe76caf50c54e4a431a8feeec4de2c399fe2e88f325af5910ebca79. 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/USHM81144828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebcc0ed3e10b589b742355a87acfc568446abd473ce09f55c10b89960127996b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM21191585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d64a8b92f9613333af21a70f1c76604041b20ed6b3e68a3e331c21ca22ce7d. 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/USHM21191594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f7794ef2c2e0ef3a5e7e48bc5a19fe61724a04ae82cb63dbaa1567342191f5. 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/USHM21191597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b760d282def89b163724794a8c132358c35ce54c1c6462713c1a3a96e23cd1. 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/USHM91177378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74791e04547d199bb9395367bd375a4786b80e3a939182dff076e73ea94e3fb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USMH92318083.
Jesucristo, Te Seguiremos (Bilingual Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7bae85b19f54c6710140693928c6c0fbddee7dc4d882b2e5e437f2df8888f36. 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/USL4Q2106709.
Songs of Worship 4: A Home Isolation Project
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155c0d300c3ab6ef0a7cd77a82e52a641207bbe9e981227525ba6cb440d2dea7. 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/USX9P2087488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3846a465bc5106316060dfd4e96e8a9ee5f1d3cff0ab031863461fbaecbe959e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USX9P2016830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9a852b79531e25501f78b3e55ac83a77e180c69405a2a8d933d27bf41d9e51. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USL4Q2087704.
Songs of Worship 3: A Home Isolation Project
Songs of Worship 2: A Home Isolation Project
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393a826b5621e4b654b1ad03532d5bbe93d4b2d163c154a36b79feb48148ddcd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM22071019.
Songs of Worship: A Home Isolation Project
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba7adb82ee4288cc273028505b8482e5013a90dca608a65b02060a7003c6851. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLS6R1882489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6249d6eb14b8479e6af00a4036a0344bf198899a3cba8aca8e797411e721b043. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM81720446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbd257d6f0968b52ce51b806e35d1f7250425aa778aee6e65f2b4cf7b86169b. 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/USHM81146826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34f4c50b08b8dfd3a39c6f81300c4a8b92707e3dfcced8169e325f3629c1fde. 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/USHM81146827.
Fr Rob Galea, Gary Pinto & Natasha Pinto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0acbb5fdae8e7119c87a58dc463f545de5e41152a0800ea1359550bcce97495f. 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/USHM81146828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec966ac9d0ca0a3d0d3cc9a3d2d0e6ea71915d6a34aa8d832b3a6fdf1833cad. 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/USHM81146829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b9786e1a102316e8e3b7087b82fb721ebcb2ceed2b07f0070924851cc5f13b. 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/USHM81146830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ff4e50ecd48c2b65043743a8c2b4ca3bb2db7c23d3726855a22f29ada7788c. 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/USHM81146831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9fc27f062a65088d4f77a70ba2e1303da1b4044ce3ef7c5771c6ba7d5fcebb. 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/USHM91820913.