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 0x4be67f60dba0c86725438b65dbe0fed7dba68a3095354ba2bd8a37de519127ed. 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/b7740813-4517-4966-84ab-379a38652985.json and https://artists.proofprofile.net/proofs/artist/b7740813-4517-4966-84ab-379a38652985.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 0x69ea68bec106871948626f26c934a5ca17a0dbe65499805a31d8456151ac6710. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPR562100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13a99ac9d874a457e4d5b2fbd92c475379f9af46ccc322b09d6f1365c4a22ae. 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/JPR562100253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9922cf8e2213c55607a9f629fd296ad02de67354ad734f7923c0a091b8a306. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:09:29Z), 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/JPR562200334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf903d806e4ed4be269128c5a3696e0a2875a7ca3cdd1d6cddae38a6099e9b64. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPR562200332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a7d88d0344c78055a0d7d69aaed1a8a2250a7b27f3572096e65751e1b7fc9a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPR562200333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef39b9adfefe2777570bb8880d62fbfd1786d865cf97496fb8a5b3c8668a187. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/JPR562200335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9922cf8e2213c55607a9f629fd296ad02de67354ad734f7923c0a091b8a306. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/JPR562200334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150edbcbe5b042dc720426aac4c2817cda756f31e4bf69e4128e464e85df8b29. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:21:34Z), 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/JPR562200336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fe2e2018c0e2cd0b75a56eafc90ab689b185ac5edc65af8c3ede8bfea6dd32. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T04:55:34Z), 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/JPR562200337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940b5069e1e536cbe2e8625f0d2c3c383855922b7bc613646e392afdc30aa430. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPR562200438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac2be973d7b8aa3984cb3b7808723b0eddc7a12338e4c64584234ba3fb615a3. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPR562200439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d5b90ec0470afa7788ac19ba0be01d8f9ab81a4c0e0a33cb6f79f9d7957e26. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPR562200440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29d198cbda1f14b7b7727f4f16db1cfb75dd803709e7ed3131cfbd8766f8361. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPR562200441.
Let's do the 'Big-Bang!' - Motsu Cyber Choir Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c3f3a4d3de283804fdc6548902078e3e10032f59cb67a38d275751c4158b37. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPR562200442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7778891d9dd8fc49c79a0bb10215575bb270ed542a9ac075ab8b883959702339. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPR562300448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c0d273056e223306eed3bb5317ec894ee3925bc623faa440f389ff50146152. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPR562300342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f474844c33bd4881fd568a6808c9ed53ffb5e9898e0199c1132e4c6f2ba8b46. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPR562300542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57f4d81effa0abe04ad207c6594c63c179f4d7bc0322d7e3a7548d0831f8de5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPR562400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668530f6256389b9d6c3a0a2a0ff7193d3a9416cd80717cbd5feefe3f1902016. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPR562400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424370174b7ca8448a2679409b2753bc454368f50b3d6f398b16e38b089a1175. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/JPR562200477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a17816e2ccb07ca95a0ec83d04254b6f1d758dd648a2f9de0119f4575e45552. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T19:56:25Z), 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/JPR562400204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5315ca5c3035948058d249b940ec01615fbc872a5884ec0f9ba029b246da622c. 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/JPR562400205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26d67c7bfd6bd3350897f8b733648990bb91a2b8d22ce1bf8ea47e4f4b44d56. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPR562400206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ea68bec106871948626f26c934a5ca17a0dbe65499805a31d8456151ac6710. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPR562100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a536f258e06fcbb8ddf63e224e35dda66d359b917d84ab72e841f256a5fb8ac. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPR562400207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f474844c33bd4881fd568a6808c9ed53ffb5e9898e0199c1132e4c6f2ba8b46. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPR562300542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e5aa9fbc6f5eddbff591935097fcd09105bdfc37f95f7ab8804790b38789bf. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/JPR562400208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd866bdcb09e6c8c162acaf249e833210e1e654b0f6268025051bbcbd55918449. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:59:22Z), 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/JPR562400209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e84909d804fe9600b8635d586c547c0b1b0a17df10e9a7b04f65dd68cb180e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPR562400211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57f4d81effa0abe04ad207c6594c63c179f4d7bc0322d7e3a7548d0831f8de5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPR562400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb231d3092794922192228e681ab7749e1f673af48c67f01c7bf5b90f37f66c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPR562400210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235f903cd01af7a794dcb9595edcd8a092dd510ac26bd8fa8c9500d84b2e9e6f. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/JPR562400429.