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 0x4e1e1addbadfba052b429e415b5df1568307e1aae131b4a859d64b7ba7863c9e. 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/f1d7b753-42cf-4ff0-b126-d36ec3c5005a.json and https://artists.proofprofile.net/proofs/artist/f1d7b753-42cf-4ff0-b126-d36ec3c5005a.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 0x445f76e598695807a5396b29a5708f8dd84828329de702a35924fe193502723a. 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/DEPI82325451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d0522e56751669d0c691ba586f495d950ebcd62db5fc66c0eac0b518f5a10f. 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/DEPI82326305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee0443b1ef1478b6467d73969f3f13e5cf5630167893ea7d5fad2e1419ccdec. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEPI82326190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140c3482e4e1bda713ecc03a6bee5cb3094b62a97e949cbbcaf6a58e80bd56b8. 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/DEPI82323651.
Rocking Around The Christmas Tree (Techno Remix)
Rocking Around The Christmas Tree - Techno Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42da079f8ef1f5a8d6a67491a98ec4eb7384c99f291efc4a06b627ec26ac94e. 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/DEPI82325837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b1b50081baafa55551d14e03cf6386605e0fcbf45b98f2ee75da5222955013. 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/DEPI82324868.
Living Life, In The Night (Techno Remix)
Living Life, In The Night - Techno Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0cef84641fe40c92f353505d9967f7432659ec6f2c406795bdd72df38acea40. 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/DEPI82324678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69556add37e173ddd44ceedb3aa4322334ddb23e69f60dfb31d1400128c7ed60. 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/DEPI82325127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e76e2a66abf7c69243685e7f10fdaca48ec8e3ae0b0731fbb307cb7f995de3b. 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/DEPI82323680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1911a4305a1999747c4a3415039e887bd8a077057010a592e2a32b5ba58ea856. 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/DEPI82322804.
All I Want For Christmas Is You (Techno Remix)
All I Want For Christmas Is You - Techno Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c976385049d52479b13bd24a41ac04942b37120e665eaf35ce82f76b4809001. 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/DEPI82323726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8d14a758383c75989ea3f2e8c6d9eb77788751e5d58dd5521d218577d318d7. 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/DEPI82321645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4542d6543cec7332520dad099f772a17ae7a91dbd676931a89558de64bff7491. 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/DEPI82322637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdccd7fe67784819a1706c6a0b5c7efe085fbb76e987234b2cb4dcb9f7c9886. 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/DEPI82321948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e416f75b136b4d7b3b7167ff7a334e8896a9f2356e4e26d2179d004b347b5d. 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/DEPI82321734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f997c6bdf987b5c7dde2c20dba018b5ec76dd4626b0d7911e0cdfe10b54de2. 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/DEPI82320708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5423eaa9f251fbe286a53fd7ba6e72db29f08ce353e984745bae40c09c28de. 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/DEPI82320706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe921eeb8fdd3a7ded57f3decb1456ea752a366f6196dfe6f16144a5d0ae3f6. 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/DEPI82318733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20a4be4ed13732a91564ae84826054902e1d47a5c8d22dbbbf3e9f0d1bada36. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEPI82319132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fe2f6ac16b46750aeefcbf990d49b3398bbbe913f6b27de65bfe30c930d2ec. 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/DEPI82313594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84137b798abdaf3686a4dfe4f12197fb7c21f8fa6f10e8e8b73d552ed15a03d5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEPI82313636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154a754db83c9a5b535335f55ba18ce7e91e8142db95a0dbc2c2505c9a92e594. 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/DEPI82313212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710d447cfd9ff5dd315349bba1e7b71ae1d4a53b695697bd55b42af433ed69ed. 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/DEPI82311527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa309965204a04421e581057ea1951cdc936e8ffac6ac03cd0a577ed3b928e7c4. 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/DEPI82311926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bef97e0416a1a7b6c5604ab23afa68c41bfdb5239852b9a99dc27e7db5590a6. 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/DEPI82311988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb15a9e8912b09ac137f93a4255d36af6375d5ab260182de92f93fa37ca39062. 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/DEPI82308354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc330a044902a2726300995a04004b6bf2d67b1ee5a55542749253c518b5d0fbb. 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/DEPI82308528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2c7776287ef27a28c08f65240bf27db6b61178f32be4b3c533d20d308e751c. 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/DEPI82308041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a393f0b83a8212df50f3dd4b32d8e7663f9c4a25f9bd1ae84184150b0f0c3a5. 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/DEPI82308148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b964701bc364e378a96cbd93ee5a0b0f498c471fd315f7b31b3807219e0d155. 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/DEPI82306450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41131515c12b30cbaffb454fb020e312ed1fe24ea2503a28a0ff0c047c08019b. 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/DEPI82306749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaad3bb7e504ce0d3d6b1f212186fcfb92af57ed4b92f1484cae7d291fb91f74. 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/DEPI82304577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b00b4e082dffe1cb38ac354228a17e7e846a33f85396e6a05e74835757f3229. 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/DEPI82306452.
Boulevard Of Broken Dreams (Techno Remix)
Boulevard Of Broken Dreams - Techno Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6357cf6652cd1f43732885c4e3d4c9fd93312fef55b90b14ea406faf99f568b6. 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/DEPI82400182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6923fc88b68d4bbb0ef63781f5dfae7d8c3679143b8904a83b8e32cffe7d879. 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/DEPI82400811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3724c1ab601b9663043538f73cee5a153676e3ac6f5f7791bc4b98b2b914cc60. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GX89G2480548.