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 0xaced43b1acfde42bfb193d55ee1bdf655c527c259698958b296d7e66c302d041. 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/9e2207e8-0e62-45f8-8b69-fdcac360e879.json and https://artists.proofprofile.net/proofs/artist/9e2207e8-0e62-45f8-8b69-fdcac360e879.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 0xe92ba59daaddfd8df0517f3ed478bfeff03253efbb06644b450e5f93cb3662d7. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLE801300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfe5abeca513f97255afb2daf6d34fe2d6487ce31973da748b9b1cd86e69780. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/BEZ451300603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b578b63717b7bbafea6ef0d8b6dd15eaff43f03ad231850d293238f1585588. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLF711100661.
Chocolate Infusion - Classic Bonus Track - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8503d55606dd3e64b74943de880dac08dc1fc18f130b341f7df55fa6fb7fee5. 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/NLF710903919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec053b9adb73160ae1de3a5d2df2186c04aef612b7a3935f72cf2f733f8f592. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLF711001898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa126a000ca5ba1c68dd130497d415b19bcaa26d6b54caa6b9b22bcbb58a899. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLF711000404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a125f1ee2a44af843b704d83854ab3b33b75da1714c04ea71e22f0cc97658c. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/NLF711100663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68cb38f5796487d0478530233f07f69438297bb9d5fbe692c12066499ffcf31. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NLF711100449.
L.E.D. There Be Light - Wippenberg Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8486cba548e3e497d3dd103676b8b2934442fa5db4f75a0f25ca28c468ea57. 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/NLE800900002.
Salvation - M.I.K.E. aka Plastic Boy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddd37f8a8e5d2e41aabe526294933df1744e97006a6d2a3f8a99460d1220986. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NLF710600955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6339426ec162073ebfd097afd4533fdf665f48f5bc52f771d7a4cfd72dd1daf7. 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/NLF710500284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9af33eadb4c49113fed6aeefd039c9bed128292bace3aae242738412db2ad01. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLF710400137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66cdfd1e14bfbb234f8ac77c02d273f4eaf6b185e991183dc45a54d9c948995. 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/NLF712401721.
Final Fantasy - Remastered Classic Mixes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc889a4b34f865d1bd6902e26349d192c906dc34184cac80fccf0fae6c199955. 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/BEZ452210530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28df89a5d576435a4f08f8950da6715becd6f118c463dd78227aff0d7dc4d209. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/BEZ452310500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e4b69016e39c9c63ed73c18040be9c32af12321d7a06241c8faaac0d110780. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BEZ452310502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c1bc5601971187e4668a9879716cc48a7cc1f7dfbc5a9bdfc81874167fc821. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/BEZ450200611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245b0d76ff862086c527ab1af60a5ea82be2dc0d01dc4f58376576d2887c9a7a. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/BEZ450000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfda45264ea58bd2ac2321507816f961ee13ef6589fda9f69a16a6f3a5615b5. 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/BEZ450131605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0738255453c7b7cc24c64012bf9f02b11cf254dc2f111eb0bfbb655213e027ca. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/BEZ450111605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1b1ff3f6b815a2b9f6737da8a69600106db18cfd91d42bf789f07c8ad75a5c. 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/GBKQU1307979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adcd906808193bb146659640a833a20a4b1c6d399018296ef96376e7b832440. 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/NLE801300156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657f0c3cda1607c621b3808dc99aa96343299952b5f9fa33fae104ded2735123. 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/NLE801300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39f33a750778e5e13f4e10b40a2026fb111916df6d1859173fbb522fd0ad06e. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/NLF711102069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73256a516bce936070f9638328619754070214d5b2d4bacbff560512609ed8ec. 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/NLF711100505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28a42396c880035d5b77d063834beafec064ebf4d389f35e73fb91e0ebb62f4. 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/NLF711101112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfda45264ea58bd2ac2321507816f961ee13ef6589fda9f69a16a6f3a5615b5. 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/BEZ450131605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2418fbff2ab580f7dc7836b8f063fc841420f681ba5c280b6e387c61ce8e32. 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/NLF711002156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d58714f9e31d6af49070bbd8f603309aae01f1e5b9218b82ba7e0297fdfad4. 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/NLF711000695.
Aquarius / Journey Of A Man / We're Here To Stay
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc2b456b871829c907a18b6a2ba41a286349295c9736d0772c3c32f96665c96. 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/NLF711000161.
Magik Seven Mixed By DJ Tiësto (Live in Los Angeles)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffa595037d5b6c67a9cfde480778b6fcc010d5517a0bc972afd1ddbba04cde2. 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/NLD681801939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c48d5ef4bc9ae4d02e6e7cb2c367840f0846594b8ee68a59086ce66ee656f7. 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/BEZ450001006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c6275696bd54880e8c8eacc40843c69bf6e9a2d5c208f1d105567050e9cc19. 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/NLF710400136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82595c65183ddaca952b9281682c4f8dd76aac87ec30a8d7193161b47564d35f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLD681303093.