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 0xfa41690edada97c33c7097fb32a4082f8e69052a49744617326bf397139382a3. 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/ab982bfe-c315-4655-9d33-1d6715f1c65d.json and https://artists.proofprofile.net/proofs/artist/ab982bfe-c315-4655-9d33-1d6715f1c65d.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 0x2cc5441a744a91f495ff0011960f2ab688661d9dd5834657eea79c460471f2b4. 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/QZWFK2341298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0b6e3a69831484e3fd1f72bf1ed23140ab2a128740ca704c1b0ce1c4c4c3cc. 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/QZHN52453466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1434b6737cede7c567a0e08b4e23b000f19e0f9aa5d0a8561758572cba61d74. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:27:12Z), 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/QZDA42349285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4f843ed74570936e43e7e953da5f9c76254847b0f9f2565d8d9f2c74faf452. 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/QZDA42349294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d88afa0a0ce79b535e2f74bf5acbbf7fb11e5fd20053edb7c385b56e822efb. 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/QZTB82208779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9eb12ae2b75d969869e7f0f5578e32386cfb13f11e101c0e662380348badedd. 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/QZTB82208783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2883585e4e10c26c2d2d1fbe8000bb028ea96569601bcf49adff367302c628e9. 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/QZK6G2146255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8355cad8126830247e70b8069f68cad5c6ff562d56d4b5a4cdb084bb5f5f3dea. 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/QZK6G2146256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5116d9caf4d284eaba18fe442333f4c0159b3604c1e1c4cc19113cf89e52986e. 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/QZDA62032971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293a220c054363b8e5e34c28be7a05117439a635a7947cea708ddf9431939def. 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/QZDA62032972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebaead6ee88e404b7ae99080554f47c2585e2c8a61e76857c64b753d89504c15. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZDA62032974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9920f7285631c08ac0569db60d24e58e6246c07f052627f81619e1f256f40653. 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/QZMEN2476813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe933a2e166dab69aaa11d2954181ddf46b0c2a264bea0318d28213988674dbab. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZZEB2368937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a69066db6848c276d34c3e4fff50a72539ccc4bc0ad492f5f89aa9e4a41b831. 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/QZK6M2495401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc223c117d18f779b0d3dc1b178111565083dda72637b39bf61cefef4c08ad2d0. 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/QZES92458185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcd0dbc5b67d722b5e5250b11db97a7a98135b7980e58a8ec760d504b8421f9. 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/QZFZ22421051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c41ff94af8a71dc677fa2f17f6fcb28408e0af112504c3a1a1a0f411d123f2. 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/QZFZ42455685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab9d9f84c09568121967bb757c412ff41334186c52514c7e8542ab4fc5ca9bc. 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/QZES82410857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ad4ef9dddc5b08683db9aae91386c49a9d9089ef7f73a8401537387b9a83de. 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/QZES82410859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6099043dd10e66d61c44a83fa4f2f9ddb862b245065ad30001b23f23c9518f65. 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/QZES82410860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2b7194b64f399fb6828a604ea7a717a07537797ecad50da614145cfa4d2cef. 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/QZWFQ2344111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc1161a032a01ccf91b9d7fcdc1685f807b2d16495f827696be6b4100486485. 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/QZWFQ2321956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ba09912501ad1bea82760d80138ac22ac92d8a301c47195831a9bc2bc7ea98. 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/CA5KR2424806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5643069ec4e5cdc823da4eed029d156793bac897e847d1771c22b65b3eec8cc4. 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/QZTBB2332707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82127af4cf80464a1f9163ea9a2d331268b4f90099bac5ceaab35b9d73e33c8. 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/CA5KR2406037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ea2459b0a829e21728c5c84103412037aeda559fd979fe3dbcc52b86568d90. 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/QZTB82388002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc60e05021ef2c0374ff8413c50f27bac07dd4241f7e550f6489af4a5faa55b. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:02:08Z), 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/QZTB82388003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc0e9ff0a616f08a0150c06559ff09424758dcb58255351630d2510f07af494. 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/GBWUL2374734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd673aa6cb13498c6dfb7c1b87db298257f079999ed0fbd1b40f0a52149dfc422. 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/CA5KR2378295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f9e40f608bb3b07698a5dbe5a135afa31c6d2e13a3e947e1178cd2586acb69. 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/QZTAS2406269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf703603b2b9bab05f0cd6919ebd27bf99d010c944dd3694508c01ce4e67910. 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/QZNWY2353585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5f8a108a2542300a1a5a71aa2e277c5c09cda8d6574f81f440cafa066485e4. 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/QZNWY2338932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81976962b4802cc9e342990ace54a7d4bd9c37cd3f5c068b470b112d44721026. 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/QZWFW2461543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffdc65f013b39ecf4f5902423ddc210c3f0088db9dab17feae969f87a7462c2. 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/QZWFR2447164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3289df4534399e444ec8d4b5bf64ec6009394171e1e02e34f8a07ea2e38ae1e. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/QZWFR2414024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64173333111fad85a99f0f9d4f237e0656406cd83bb7ce2cc2d1d6eb4bcabbc5. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZWFF2416566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9fc4fb7515874fce59ee9f98e696cca7b3802b4c06563aea49d87636a832b6. 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/QT2VB2427166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020e2381e7c60fcf9d999b410012c0849427e08d708a45d1bf9710bfec6c1c73. 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/QZTBE2431300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a442cdff49c95153dae1476b7fb6e3061438b0b68c6536c43cee91b9a4c4a1. 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/QZTBC2409409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bd3497a4d4ac7045208713c17953a4fc1016321ffd01ca804314fd2446ec80. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QZTB42493624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1d93db2508d3a41d67cb83091cb012677eb1b2a04b9f6f6decac89d46e1033. 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/QZTB42496548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1816a24fea1736394a259310ccaf165fcd483f3d02c3f797f0aa4dbd353a2812. 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/QZTAZ2413372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb6f1094c4ebf6272e03c357bf2a5bb8270e6c01c4eeae387cafa56c8bcfaea. 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/QZTAZ2417832.