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 0xfda47275c8007cdc36ec5671622e6a197d2c99db23495e261d7101f2d9f2f8a8. 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/b0542a13-736d-4fa8-ba70-82aaef581d5a.json and https://artists.proofprofile.net/proofs/artist/b0542a13-736d-4fa8-ba70-82aaef581d5a.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 0xa6a7b0edc986f0b70e6e0c78986859017c6de4ec1b11f77a8ca8af39e522eddc. 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/GRE018500215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb853e3a2825dd4da97c12241235689c55f1413f14aea08f65ce8b4bc04081f66. 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/GRE018500218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8baaeea94481538d0ec839305b0955068894cc9449544d28481daa9bef617e. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/GRE018500221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7d8580e859f43b9c7ae7319985bb7932ccb706b8b16648f146df90ca347abc. 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/GRE018500222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0873ac36a5c2d8559a35a00582ffc8c4e036d8a74fade5e51422238761e97d9e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GRE018500223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f581d12a39dcff675d612f6fd12e5487fe416b100f66be035966804ef4cfad9. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/GRE018700204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df29fbfc28c72cf8de15e39e8f7e3b2f6ec63478626c0844ace622ba81d5631. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/QM6P41435446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1729db7d193fdbf9666facea3150c7e04edb9bf818799b615a630ed575b41e07. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QM6P41435451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3428a197c310738c000eabd7663c2d06b9dc5a328d44163f5274521e228cc1aa. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM6P41435461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb01bd65a7c13f33be2a827a848c37c62ea754ae56d66c18ab688cef19ccd886. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM6P41435462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc0ce888b10a9f10cf707b69c8ecc5895401688c5cf6d485fa7c925e986d2c8. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QM6P41435469.
Haris & Panos Katsimihas Compilation, Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827ba9f362dfda6f5acebb789f4e52fb25e3ebd53729164013238b9daec12fa3. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QM6N21471591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccd3c6713f0a9072776bca6b19a9c0cf83ee7824ea5f3f81717275e277aef7d. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QM6N21471592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4144c910b1278739b6995d95bdba6c48306d5ec75f088c4301dedf5a5449900. 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/QM6N21471594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ebe79983271cd0c446807ccfd6ed64bcd54029ad8ee2fc312c6e1d4a043e64. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QM6N21471597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ebf940a1fae1b6064df15f6432fd95cb1b657c385fed7da40220feb1ccd838. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM6N21471598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ffec4924fe0cbe2a55cdb52b992d6538feee93739b811864d224b5d16577da. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM6N21471600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4ac34e58a231f5add9c9095b5cfa7a8030cd3950a07b2793c55ccfad7502b5. 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/QM6N21471603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb4ec797d5075943db1a2b86bc7864bf2cc5046fea2441fa1ccca83b571d3d6. 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/QM6N21471604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d4bbca6ed95cd054f6032e5c8958c1b796174d22d95fa3f583f90f324cb535. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QM6N21471606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187b661369a281adf57fec0eae6fa1bd3e6e5e002239ffef8530f2a370e31de4. 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/QM6N21471607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97ea62dff5e6228155001e7e20250c252db835e508f374c7313e0bb23e35cd6. 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/QM6N21471610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d4ccba854678742ad30cbdf2c62774844bb4ce85e1c7a3ec10be2f44296891. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QM6N21471611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5d9160ab0468560ed191959c94c52d582a004cd15a4c51166c38bee599085c. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/QM6N21471612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ccd533438d9dedec93ff777a4c0a2f4f99fcbb598d4c14c790cae0fe3cc448. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QM6N21435384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3a950d15d19c2068a8f6abc6daca929569e30ae5f9f7d33cfbcca39a8c5131. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QM6N21435385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf0faa96fae8616774e35c95459144d74e2e0f514931add2c4ad8481ad09d3c. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QM6N21435387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cf0f3ce436d3372c9724888f268db1057e9cbb4e6c52f8db9af38fdbaf6f95. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM6N21435388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9382b70f4c55d7dd7d59f93d33412fc80f4b25b09e351b1733a01140a43248b. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QM6N21435392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17dfe738f9d18081dd55a9ac8f07640871699f7427f7b2c4114c9e05f8d2a96. 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/QM6P41424135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6380dfd9a8c53aa7851ce86e355eb0307b27ed1693d8a927c6126fab8825990b. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QM6P41424136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d8d42d04da5d0cb173b798a69d3de8cf241c965176a4b05ae40ad37bbf1577. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QM6P41424138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4093b96f05fae69b5448904a93af27486d4f406b3b44f9fe364a5814630e97. 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/QM6P41424140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114d042d33693f884c7968b34f72452ad3d933412c20e11a34f7b1e90a8e5f04. 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/QM6P41424141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e0fec30a9bd474699a1f73e52a0e6a7a088d58412622b9f0967476dc49d50d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM6P41424142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b6935fcea7c187dffae6593274de4d53526b2dbcc0fa905276f90a0300f28c. 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/QM6P41424143.
Haris & Panos Katsimihas Compilation, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233ef89c7cbeb9b7d798874d5acff3e2ff112fb4d2658ea0e322725ef4adbe02. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMFME1594870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8326f7e61305a5bbc91855933d972efa8f1fafb90da18aa22d8036bab5ab14f9. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QMFME1594889.
Haris & Panos Katsimihas: Compilation, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5218449242c8d1c7fd983bc894523120b45af7365e99bc73d2d1931efe264d. 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/DGA072148664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb499659db87b9abe2d5d30da0d5869812ef181dc458bd735955b852e6b8c302c. 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/QMBZ91953388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeed5888816125e7a0299a4d71200849c8d5e960f2f7e591c7079a0c81a97a07. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/GRDMM2501839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79e68d35765e5a1900e356dd3241669ea148334e658115541fe37d92b83db8d. 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/GRE019400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0517ce270e2a1b15b682ad80e743517660d58dfd79d805d83ce7ee1ae000a948. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/QMDA62452050.