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 0x3ab01972a9c1a88c2ad57a24b0248226e5850aefecd3985aab880df9c2705f7f. 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/5b08968d-283e-4fce-baa9-5f8cba11d4d9.json and https://artists.proofprofile.net/proofs/artist/5b08968d-283e-4fce-baa9-5f8cba11d4d9.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 0x6e9d948b44585fad888cc7298d92ac082b24667b31e760173b76969421eb9c1b. 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/DETO32300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74639205df3d80984ba595fb14aebd1310340aac031ec0b7d3920a37dccd0ca0. 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/DETO32300147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112a7312e9e947466a99fae5252e1f5efc915a7ec83357c75df8a82a6b208d5f. 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/DEXO42390390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ba010731eaa17a294c0260f588d491ec2e197b06bf6ae594af81df21076bdb. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/DEXO42390391.
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 0xedf2707f329375266344cc2f3fb17691dedc9f8062b01e0f4247eb8fa1349e93. 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/USA2P2403856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430b151815faa69f724524082fa73df2284494dde842fc1b263238f948c3b5a9. 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/QM6N22220734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e1476cfbede5dbae89adb2e0f0af4b1ce608e81034194ad9fc9960e5df466c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM6N22232203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf39959970708932ad933bdcbbe38e10aca1829918d5b5eea4ad1c3afa455717. 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/QM4TX2280209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf999fd70228e043d8ff9fa8b758b284598a92f591d829ad9a23409e7305b6e58. 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/DES232300210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323e0effbd34fe4a3639b6d44787d2c8e7e7f24ff6b06fbabaccbf8af89e8cd5. 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/DES232300211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45aa0c04228fd2ecd876d568b9e8232238756cbb65e79f077e3aca8eaeb06633. 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/DES232300390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64170882a92797f806dd850d06ae49d57dbbc6fba9cfe11709fd8594c3163b5a. 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/DES232300391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fccaacba751efff9af5dd1cc981c82713410d4c5f026f2811b462d1f908d217. 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/UK4ZF2300281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a706051108772ee4a0243e352040bd76e7f424540d234ebd3197b79efe9273. 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/BE5KW2300264.
Put All Your Faith in Me (Tensnake Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bb22da5004be5a685dba5471c45dfd567662801bb507d13932e485b95b3bd5. 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/DEPI82301981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe45975afb666ebec866b1487c28bb03ca013ab41afa1f201232bbec527049c. 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/QZFYX2345373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed63352b16bed260aa17b8260d589a7e57ed98c60be40eaa36c01353b097c18. 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/DK4YA2292201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592d56673b1f95165d1a074e2bafe42ed6e6faab10923cd57697a28671f7ea86. 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/NLT2H2200617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ebcd941777dede3e6a49bcbd9ac106631e38ad18b145fd28c41007675d2b6c. 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/USQX92202058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbf16374098178375f8ff7b4f83759318c42a19f4b7206a7ee192bc527d813b. 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/NLT2H2200188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adc3f5e678380e618b7e7275f62298ad65cae30110914f6ad1ccd5252e90978. 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/NLT2H2100961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fecf4d7787490b71689c1c32baa729d2d2644bb3bc312a70b4c4f4680cd3a5c. 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/DETO32100297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebbd3973a2cf6cf1ff53b90c7dcd756284a5b3953a59c6d2df3b5392b358fcc. 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/NLZ542100302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4233152f9493de3259d00afecbd6dd6fbdfe67f4150ebbca661d12f7fd4ff3e. 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/DK4YA2118801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b017ed22ba37d8663911580861d68d1e7001e2293d313e1adac1ee7499f55a. 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/NLZ542001904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa7a9c7a827dd8c0b43d937926733390dd37987768fbb5a9ffa96ec4b616795. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBKQU2075124.
All Of Me (feat. Oliver Nelson) [Remixes]
All Of Me (feat. Oliver Nelson) (Tom Hall Remix) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d015a10f2396c52cc93d72c12a467cb8c4682882def75b6c3cce5814b43e8c. 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/UK4ZF2000165.
All Of Me (feat. Oliver Nelson) - Tom Hall Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ffa20be2639e3e370bdcf6196f30ef329fc067723dda0a3979adbbc879a3fab. 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/UK4ZF2000163.
All Of Me (feat. Oliver Nelson) (Future Kings Remix) - Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1b849eab71b6d374111af1ba3ed05c63059e137efb70b194ca83134ba146de. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/UK4ZF2000164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385ce93d40b7c024f04ceda078ca1630412109c24d6863a030fa3a07a21213de. 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/UK4ZF2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3c2bd233f4c30308097a172865b0685d2e7dc296778385ce1442f5b025f69e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBLV61902988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ee426e3b5ccd5a4f317fb534387b7c1fb0ab7e85d1be54cfaaa393f18190a4. 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/GBKQU1954658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d16be7da790c9cef4c137a9275d7ca905414904e8ba7f04399eaad69ce02d76. 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/DEA621501131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f863fd62898d8d99637275ef08475a684f20aacbc543607c914acab2a042ae. 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/DECL81700343.
We Get High - Helsloot Remix - Mixed - June 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9ae0941421e968a6c73928705549ed0f9845b0c35898e4610d712859e83045. 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/DEBE72400446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff67fd88e72037ca0fd0eac5d458f5f6d6949e32543df8cc0110ea7fa25d18b. 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/FR9W11618079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe311e074bba964b11e2c467c5a538be1347ae256cbefea2d9e867ee97429380a. 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/DECL81600291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff9bee7b7c51cab884dd05ee16a9e13954104ffd9a33bd13b8cafeb5a5623ac. 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/DECL81700337.