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 0x759f90270ee8561cdb3b1f818da7144bca26c8e91f06283c555c0010dad6f0cf. 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/5d90b4a5-5245-4ecf-8cce-01c60cff2aaa.json and https://artists.proofprofile.net/proofs/artist/5d90b4a5-5245-4ecf-8cce-01c60cff2aaa.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 0x5250126ebd65141c1c0bfe20b006f88780f5edd00ac0d3a5d7b7444595066ff0. 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/GB2LD2110405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c57bd3015ea52a12a0835dad22c9bcddff7f5c4a0821e78aabc1909af321496. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZTV32486398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca196195957f7dc9c788fe2d3369eb14f07dd38521a4518a9597303d3fd2a5d6. 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/QZTRX2420195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1418bdacb3eeb98bc8c2696d2bca2940d73c4df2b402ad69ea627dc9f8f9dd70. 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/QZ5FN2455113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5416328d6db5536b422874aa9a6fd844fa46b69e619467fe4c25aa0134f3cf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRR642301766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bff809b68942d8002209f03cbf738701f8f5029efd2e593f08ae341c2657f6. 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/CA5KR2380281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db82ee671c78bd61748e63819bd0fe505e28c1dc6614da96822b5b1126bb6fc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU2382766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf65aadf91fdfa3a984fc20db593cb6fce638481d2eec54cb639886299739de. 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/NL9KQ2300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895d456fa72dc0f2264a2a22222db32d5b1b9fcd65d23278559a172e7fceaa8a. 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/NL5WB2300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8b0f9cb20e5b8919d275efea73c24906b9dbd7f9aa5e000c75744e61cfd8ed. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL5WB2300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f7b2b744d06f393ae94f93dc09f025e8d2d09e528756600d5e97b9195b8bf8. 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/GBKQU2358159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca7fc9c4f1002a31960e2c1aab1232da7b7a85e16a02d9cd2bf51fec603a9a8. 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/GBWUL2394539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efc927cd0efd3bd0ac8de00968a9d78c5a48851e981997401860b7d77b680d7. 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/DEPI82305937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284f5c3abb761ad6daa81abacab0eb0c534f8abf89f158abf80a5dbacc49c478. 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/QZWDD2219630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453104f2dcc427166ce036c445215cfd9571010dd76c154ab397ce20f427119d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ATEK02277545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae1d2e32ab2f122ecb911bf235e7eb46d1b83c2d09cd811de270b1d5a9adc40. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ATEK02277546.
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 0x88da835f1d59e16af96e9a327cd9869cb00f48db0fce201ae587618e4720533f. 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/GB2LD2210265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1e6f71094bf2bf65da153f532054cecee9a7a077aed8a1d98606a2746c01c0. 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/ATEK02277508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e9a1da1fb62712a702d6acc8f30a4b8626b5c775c17041036487ddc524ccbc. 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/ATEK02277221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b7d97614f64db3bf920bea04d7e2aaf340f2b310834a327ddae82d3f78750b. 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/ATEK02277222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f6b122569cbf44f42dc2a1fd815b80feb8592e35f31f72ef86be31c0ea8110. 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/ATEK02277223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483668deea6c303fe65e74e3609b14172c7d9194a0e117153a75ec3e973d6ac6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GB2LD2210047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6c2770b3bd1d0d067c6ea24216db1a5be5a4a71af661fd01cb036917ce0d73. 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/USLZJ2203739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4675270c1ee683808436e727ccc3bd4d4d908fb6637bc027052c20d5fea24342. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA2P2204056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457e2642e1247a5ebb85e7529da35337b4f8759523019f61c8eabb22f0f1e03a. 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/USA2P2204057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23d1a6ea87f143d331a21eef20c9f85579bb298948da8b591046dba4539fab0. 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/QZP7F2133074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ca4a12e2cc27cadb94bdc6eb59a8a9e30e0d6aaebda7d4b1e87a339eb5b33d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ATEK02177122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdfdace83fca813210a1db6d2c31f773e53a02f234cf48385c999058d0c13485. 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/QZ5FN2192993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fd84261593f9be7824cef8123294544763baba8cf863a6d53dcc793682689c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ATEK02077128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9500571f795abce7c9227d30d2d434d28920c796d58ac56a18b37606e719c489. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLXS82000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15ed8ebb0d02c730fc93f6fd48bf0ffc28f8ef1fb5be6f2beae6c7a55c1c6f6. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/QZ5FN2056923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82fd1b7833a531bc5ca64cd5923bc257cc1588e0139e26d28552825ec5803ab. 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/QZKDK2063031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5b095b33b39b22946bfa67b8364b58c5dda9585942f33e9dbfb13e8118e717. 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/QZ5FN2005772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf511f50e37baea6cad43801029d4f080faa8954a5e857c6c2db8f7dbbf9beb6. 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/GBWUL2071981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125cd2107684e09c35e56def88024b8b62ca79fe13c053255c4088327ee80774. 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/GBWUL2051778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc71849688a3e5d72787851c2cd77dfeabe3089181bb869b7d38ac33b1553800. 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/TCAEO1911854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33ea1cc8adc3a32c37f320c78c29ccfc739e4e941b37dda6599348e7c5fa84a. 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/GBWUL1915206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700f5c40a5b17c0e3832937ed7bfb78a710ccdcaf1314969c5a5a45736361d5a. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GB8KE1954775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6747fe8c720d1a39f3fc69ff96c696902d2a76c325adcf781899c6e7040ba08c. 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/GB8KE1954776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2852b884b159d0cc5b52946916c815ac448610fc8f62c8acce4256a8d5714f7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SE5VF1905136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a1ddc2225d7c04295c629fc36bc8909164a77c2367e783ad7a63225606e607. 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/SE5VF1900479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d0023bc2bd1cb468260bd0ecff4d7563aab3a2d35dc8d50a0fdd7e434b8520. 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/QZ5FN1777493.