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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 0xe396db210f6ff603a0a46fa217eeef2c3ae7e2d5d208b9c4d313dc4732705891. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55b3861f-fce5-4d06-8e23-013f286cd130.json and https://artists.proofprofile.net/proofs/artist/55b3861f-fce5-4d06-8e23-013f286cd130.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 0x512e09e1917a7bc8787e6b04366c17266df4d850f3ae63e88196ae9263f8ea4f. 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/UKU932321262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd83be3a2974b4a4e672264d338d210fcae6d9af42133f0943210f48e5314bce. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBQ2F2300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66c7dbdccc7110e13f8cf82efea3e473c9cd48dc336b1a285efe1aaf1dce830. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/UKU932321263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a67454723025e228b4912db1d2f6adda4b24db15cd66a1e53849013175666f. 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/GBFG92200299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce4f984c8b5b3c403822852b9a947378a816a944eee602ef52bb42747aa1f97. 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/GBFG92200300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6913977df3cfb553df188190f951a70112885ecf37c3e56566f9f38d28cba2c6. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/UKN6K2002963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2372c67489c8f84998167f17c78b90e535eb72f0a97f27ca05fa855261113993. 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/UKN6K2002964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f3184bbf5e234def36d690e5fd339e210170e08017531804983f09dc81b53f. 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/UKN6K2002965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2372c67489c8f84998167f17c78b90e535eb72f0a97f27ca05fa855261113993. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/UKN6K2002964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdca32d6a50ebb29bf6cd3f519c0ecdfe2e052d1778ea19f487a9a1fd08496fc. 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/UKN6K2002962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0a75b65fa3a649dec092e4b9c404943327a42ef3cff823a41859f7b3d690ea. 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/UKWAS2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40518b6d1351854474514fd1da7e2efd27f24a23359c8fc3d5a87698ac188cf9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UKWAS2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3322b63a08daa62fc6cefb2d1e389177588d1390948aef88999e1caaed4f9c. 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/UKWAS2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bff345637face82b122b4d02d3f79db725d96e6982e17ed0ea3510307a71bb. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/UKN6K1900177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bc61730a6df5ab4e91740f8f560f480f090c4195d819f7652364415aacdb16. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/UKN6K1900178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3206148fe8345d03893460c397368ff9baa8d9c902a39de485f888fa581ef54f. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/UKN6K1900179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c74369e26e4eb9d75c7cabaeabb3d54342f10b57e10f1204b1df112ac6362df. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/UKN6K1900180.
Discredit to the Edit - Bawrut's Back To The Floor Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483f5b793157819f52c98795aff92d3abad943953df92a86ec59eebd4c7ef5f0. 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/QMSNZ1603306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c812ddd47d9f98149e52805be1efccc57d8adc66e9e6eddb18cb701ce61914. 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/UKZW52100135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecfcef5552e7fedc890b2d71882599e74252720ef95bf70f1f76e94d65773f4. 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/UKZW52100136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09526eaa26493fef452024599a1fc844bd963cf64263852e00e49c994a1abf71. 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/UKZW52100137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31eaada89c83e721ffb02e4cfb51dbdcf8bd2f2fc08baa83c26869a65a3bfa63. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/UKZW52100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5f3c544083bc8e52d19a4ad62f14d3908c0c331cbdb4e8f0484fbfc7475426. 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/UKZW52100139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b760c96b6c788ade2d9f2840fb911cd21c1dcb7eb6b76c385ff1473f75a9bc. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/UKZW52100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba560f9fb851d85632a7c222fbcb1ce159c33d7a11fdc3552a484288d880997c. 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/UKZW52100141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9041562064e231cc043d90b36c0c139a67e1d52c7732d46aa17d031c3579019d. 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/UKZW52100142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a25442d51f776e478adddb694555c22a71b3d5a79a56ca455df1fb778b9264. 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/GX6T42200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad2bfff8d1b9e0432201e275a8d1dc151b29879bbe106a62567d7e343f87784. 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/GX6T42200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0038f00fd637cb69ef50fdc399fa98eddc532401de6e57dabadccc2ab4dca9d4. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GX6T42200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24f962f5b5a749ebc21904f33638a1f63fac3b23ba7615b7262d6ea811ff32e. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GX6T42200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82b6080bb5fe37f9472c3ab7c23c6db30c3a731be0c195b27c55a37c60b16b4. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USK7A2500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e8ab441f4a8f30b7295decf9ecbd8c7e3d9ffdcd070cde252366f99d9af5fb. 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/USK7A2500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a3df5cde9992524e87b1b8dc66b7d04725ac8637385d71670789995c3b3aff. 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/UKZW52100179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb30677ef1628bf513007122e7b39b17bfd292e206e2249aff4078d6a0fb791. 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/UKZW52100181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389b3554147e9f8b3401f268ec6004b821eb0c8285729ec99031fdcf85c751f1. 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/UKZW52100182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1d0acb7d8b203ce6d64e663598d998fe4f28a6aeb75ad04192b6d2f1c8abd6. 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/ESA092503964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfdbbe456ae49e13937818ba501ca3d79c7640cd3fde21e48e3c866890b27b7. 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/NL5SZ2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb14c9281dc4ec4effd22c7a3f99601e23f36330678e148754c7e00f82dcc44. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/NL5SZ2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d60118cf5b599cfc511ebcac25f9ad73382122fe385699c2dcf8a69deeb7268. 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/NL5SZ2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a7dee116608bff9390aa7245a139f19bac33307c9b73bb149c0a719f8c836a. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/NL5SZ2400004.