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 0x51854bc5102a6fa94590a3bbc109e8bc40118be6253d7b2a2e99c84d5f37b1e0. 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/90117cb6-d4dd-4908-81a6-f6927cc7ccb6.json and https://artists.proofprofile.net/proofs/artist/90117cb6-d4dd-4908-81a6-f6927cc7ccb6.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 0xb9e845a6e4c19aa661c506a06ccb3a5b3cdd84e41fcae659d4177aafbfc4bba3. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USAKS2200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad9fc1da0fbe7f30e241b451dec546dbcd22346e5c082e93c1eec3699822219. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USAKS2200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a48bcf3f896d1e4dcf7da56fc836ba5aa6b85c6168e1908b6c761b562cdcf3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USAKS2200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170581303a6bde1c0f07da43eccb340b02e78f3a6a3a9f957cd5619e8e2b82cd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USAKS2200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61aa85d07ec7a3099cf3e39256ff1d0338f63cef19e20e02be01dda5cc37494a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USAKS2200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ce532a1dd4a3820eea4795e4c37c171de20b568b99047dc1e18c9740c2e977. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/USAKS2200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6993e0be114faf2b3ba1c5cced6a85e245f3c274fa7a869ed88325399b0ff61. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/USAKS2200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8bfeeeabab80b89a231f2f4ad85b217b4b1b4668fcba11d40a606750336f12. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USAKS2200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11e3ca8e2038d939ead7aadcaf0fa861ffff64308adf028a2eba8427b72e6d4. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USAKS2200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bcde712dd41a181919ef48e3567139fec631a0d8c1131208d40b43778a104c. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/USAKS2200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2a90a777b3eacd8e93c18a6a7a0d64a18fcdb4b07c32e33f23d723e5a1be89. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USAKS2200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b72fec5ac02577f0017a23134c6693c636d658936d6125cbd32077c16d01dd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USAKS2200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4062e2a59ed2756b765b0fc5202f41a97e62cc7853ec712a2d9a1c97c9b75b8. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USAKS2200051.
Devils Bit Sessions: Three Generations of Tradition (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c61cb39560da1e6bf29fe87c3def7f89eb86c6e10196f4ddd236d127e793b82. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QMEU31707065.
Far Away Waltz / The Cock and the Hen - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1d56bbefd826743b2a92c121bf8b43fd7b97ae159eb7829a6ae734d03bb778. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QMEU31707078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c45147d74f7bc9b485235449fac7a2bffe158980e45ce8fc335f78edfd8b0f. 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/QMBZ91629326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2b353b2f2017bc5fc7b2de62e24f6dbdfa85587f973af3d79a7cee4f1c742a. 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/QMBZ91629327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa984e3a040a4d6a9d548a8b3f982a6f7a743819649ad5f32c4688e5463412ca. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/QMEU31617198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690a8458d2ef2d1baa8d4c454a0f0a3af49b2fab4c4e138b69f993a00cab3491. 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/QMEU31617199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc062ca5feabf824dc1c3fba2dd106f5446bc76f05db92a2a687081316768bcc0. 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/QMEU31617200.
Belles of Tipperary / The Star of Munster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd65464587b52abeca357d6b1ece8ada8a5587284af74380963d909b4ad2a4d9. 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/QMEU31617201.
Merrily Kiss the Quaker/ Denis Murphy's Slide
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e6fadcac302c289eec3ca90c6914e55c402f8a97fd76236af31c3a5221fa61. 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/QMEU31617202.
To Bring Them Home (feat. Nathan Pacheco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e602d5b38d1e51b7e34df567a475e3f4b0c0ace8c93113fc0c6941eefb9e76. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QMEU31617203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457b995c1bc1418d9d680d29743bd9882c5680cd4826a725808a1e75ee093370. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMEU31617204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec2ac41e9a15421b074ec70a1826d34d2e4584cc137751ec8fafe20e536c0c5. 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/QMEU31617205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241aef9c17a4d0789e07859f3b99e9cff5350ffc455f9e2047376ecc8df0f85f. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QMEU31617206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46e959c1a38ce65fff06c1033afc025dedb33ad4e1c001b3fc24457322b8fc7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMEU31617207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf762ce3e9de5adb0aee16d15d6c621d9b41fe946cdcc5d5657740d6ff59305a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QMEU31617208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281375ed958039f1fd42ca811650dbab1d32a3a39d85b393a21d3a8bf1b32df0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMEU31617209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f90749eb7f7fcaa8506392dbce748fb74b79a8a7f547ae890a965a36a161391. 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/QMEU31617210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb53d51d17d00b4e7f927d2bdca41ae92f9ee9e93fafadf5990568d705fe4301. 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/GBDFK0100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc356e51f467a60d9e1a768ab1f8ad1eed4c07a552fb2efe52a075504842b45bb. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBDFK0100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3edc1cb42b743014ac8b62cc9e2c11b12c3075484c7ee11e32fe41a260b2f87. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBDFK0100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b47302c78d977828d125cc27243f0987b11d8aa04b08d1b2fabe9b50d76dc6. 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/GBDFK0100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc610e9ae27857ab9e16a8a392270b7b23b21b11d71fa528cdc56a209963ee22e. 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/GBDFK0100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55bed5a34ce4d536680177c11d114d242120f315a4117286aa7e41496cb2934. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBDFK0100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffee0d343c32603ed28adce90c0c70dc9372517a32727f9f88c1415a850d938a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBDFK0100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e290532cdf914b73a4889b93bda64950615b8e4241e82aa8575c71a200ce23. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBDFK0100111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a0c8ce1db3a0e04e4e72484ca7215d89dfd0dbe842cc0f6d9d6452d0b8c6a5. 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/GBDFK0100112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943e8c721daf8bfc6badbed50e9565a361979423f6690ffa47318295a2818c28. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/GBDFK0100113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5669ffabd03d2706c28e91aafb221f30c7cd423ace3aa83f8c2b42c6f1b2574e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBDFK0100114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef5a20d01f7899c8eede84ec3d3e228d1039f0953251c6434dbb2630daa97e0. 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/TCAEM1955798.