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 0xdc8187a14adbd50552bbf7d6444a00361bd00569e7bd4d63c8b4f9269bd1dad9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff405594-8bc5-4669-a26e-3ba6214f50a5.json and https://artists.proofprofile.net/proofs/artist/ff405594-8bc5-4669-a26e-3ba6214f50a5.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 0x4e48cd024b37644a5b2983182b06cc1d22db2e450d23b27c9d394c444fcdb00f. 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/GBKQU1520464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fee1d3366900fffce1761288711221c559cb89e2994b65f18262e1e51ea5af. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBKQU1550793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3783c658bbb8bc2c8b48865aed2f7666ad31c63bc16a2f60735be840dc8f3540. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/GBKQU1550794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622ec7b564a5de69658d0359df3e51dbdd411ac8345e8ab9e7bb32a01d73bf8d. 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/GBKQU1550795.
Donyaie Man Aghaie Man - Short Version Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0b9235a438f0e40660f71b7a3fa7663c8ad47000e4078ea1c28b737daa13e1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBKQU1550796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3e71b4b46a6c52ee152d10e102287011f17c8357649410cb8f4282ffe39f50. 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/GBKQU1550801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551a45694bf59f2693703d7940bb3a9b5683d184518943ac6f1627f8ba7f6473. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:40:39Z), 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/GBKQU1565206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06517ebeb4a5946b4140e13591d956f1ec60ba849d34e5d3d489f328f4f372ad. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBKQU1565209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf18ea1cc291b77a77203465372d9fba38fbc4a43599196e18167f0cabcb777. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:45:29Z), 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/GBKQU1846214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4816c87c0dab594864e627c5f8b8611fd2f9edc3c324b6c7de0734787e33a437. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/GBKQU1846225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898efe5287d300d3c2709c3b676ebf5fbfc97823d1167f49a93f0f77f53289dd. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/GBKQU1846233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc118c17655af9ac750afdfaa0790862e914ef1788036ae9b166f1e6682b6a7f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GBKQU2075579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf94883bb714c389b029cbd1605200d33bd6efb24c63f57c0d3679d69bb0183. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBKQU2079270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e51048415f73528f2399af21c1e53ce1fdca0d9c1a4cd26a89123b6786e173. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GBKQU2079277.