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 0xce76ab661c204669782d56dd7b21d93f010aea661a09a1eb0ab99f05f7cc8bb0. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b604e6fa-e040-4fa7-9754-8ad5075f10cf.json and https://artists.proofprofile.net/proofs/artist/b604e6fa-e040-4fa7-9754-8ad5075f10cf.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 0x5991d285ad2ed5d7ad84b3d17d697a66261ff7c0c131585fe412d87f1ba38b40. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/THRSP1216482.
รักเท่านั้น...ให้เธอได้
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbece9175d0010465b8d02b302bbfc98dcb1e7e565cce973bfd643ce535b6e106. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/THRSP1216490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65212a9468f31cd2a7ff443ec489a679e607011829d58f0b162ae99e93940b5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/THRSP1218511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0359c895edbf9258ca4c07d6ce013a89719cd0c423efee3fede1e6bd32702e21. 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/THRSP1218514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bff9873d6dab3a2a83bdadf30de08e4e3eeaada5002b239d8e7480efe11530. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/THRSP1218519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45588d7088522e9ebe6f40b6dd36b0ed82fda0e476fab82ba9aa782360cb35ce. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:13:09Z), 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/THRSP1225543.