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 0xd75c30ee2c5db4c8d889a3c1471297e6ae8049d5b8e5296614c93515ea350eac. 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/7354342d-841e-4842-bc2d-434748e79292.json and https://artists.proofprofile.net/proofs/artist/7354342d-841e-4842-bc2d-434748e79292.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 0xb0d86832f3c223791c53111f5f9412dc62dbdfae99babe006442f2ed0ea52bdf. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/PLE072354603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d19f483ba0af5590b2f1acdd29467c4ad8ecad920769ee641f21cebc1f54ef. 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/QZMHP2408702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb226ec98843c7b5bc3772e131fdd47162772ee5de019b5138dc75d6895fb94. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZS662472863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d27888119f01e5973f2a9f9045a4c32e36f68aab118e3d24c9adfb0c1e5acc. 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/IETLY2100066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9b998041f895d555c01a79324aa29bd6b4bce8c72de4759f487a5c781ec6a1. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/IETLY2100067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1bb36ad7fbbb1c0662a4747519cdef42fbd07261e2c906ba8514d8f10c335d. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/IETLY2100068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4876ad441cd28d46f19d95a34dbbe431ba6fb01bd2830920fb9fce9713c4d44c. 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/IETLY2100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94c82db52894b3a7b1058fa419b8ca291c0eb3901c17d9be1473698339bb0e3. 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/IETLY2100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9785058e9d5fb8293ab147b0b6f6d02cd6b780a653beed00211c31b8e8861b38. 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/IETLY2100071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21410e55bf76dd09d663652ab755419c1675fe97518d7865d9019af4395e899c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/SE5BU2593674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb327d3e6dd020efaeb68dd86ad218378da9a8a3be2e9b716173dad82a6ab1630. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/SE5BU2593675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9190160ed9ab436968abb50a35f4e4b3d57d03dd0ef959454d8ce4e1ba5832a7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/SE5BU2593676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfd6bfe13904abdd304d2fa40726b69d7e039ebb396904025306d03fc7f6ea0. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/SE5BU2593677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39486f822a9e9f3b610e0735666fb5038cf33df89d51c7107de48dcb41af3a00. 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/SE6XX2582220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2c95d4d0f77d4321c10eab56bc8fce030512204635bb1549d61af0322efa07. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/SE6XX2582221.
Can't Stand It - Miguel de Bois Unlimited Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9047986725e46e5e4e306af08ace1c9e07628b4714764cac3ec6e2812781676. 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/SE6XX2582222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d54f92564286be2993f448bea755ab3341ac47fc3ab41c9ebc102222f42f0a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLCK42236640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff270fb2177ada74e92250709822ec3acf6eed9f3ca8fd5ed1cabc08aa2ccbb7. 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/GBWUL2489101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb783ea461405f7f270c659a152882bac03a9db82bda35b07143299249c110ade. 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/NLCK42341158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17e32f4c94f5a69fdd0b60d5724244894c78cad0e2e8c5a2021e55c7bbd2f31. 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/QZS632354420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463b6d864da8e00c2a2cc7d5e3ca394d8ff30df6bd6cd1d0c2773e569b9e59f2. 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/PLUM72400170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80a9ab4f0d5f9acaa21f47c4dde5718207fa76d2331efe2c400e11f0e3daf96. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/CA5KR2492174.