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 0xfa722f3a6f59f669f056f1f903af2b1fc35af4e95e2d06dae4e2f5aa9c76d728. Chain 2 (Bitcoin): anchored in block 953719 (2026-06-15T01:07:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a593429-33b0-4ed9-aa6a-6fef9e224661.json and https://artists.proofprofile.net/proofs/artist/8a593429-33b0-4ed9-aa6a-6fef9e224661.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
THE TRANCE CHAMPION～Overhead Champion BEST REMIX&LIVE
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 0x79a88df0b4fe56c90d8dc30cfde6785f672c1094367d84f20039d76c405b1c94. 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/JPB600773817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1cdab8afbdcc96bb3650ecc6ed482f9cd50ba275b63a19afa63e6fab80b1f4. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:08:43Z), 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/JPB600778780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c130d8bb8de4366049f8277eec71d871483893118f56e5c71655dd21476f8f6. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/JPB600593447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6c0a08ebeef5a2f82dec42a54e1abccb10e0fe0642275b46ada218045cf218. 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/JPB600593451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7311d75ab6e3cbbf2f1b792db442ad18420791023689a819661677025b1a3479. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/JPB600593444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7887f7d35b7dcaa9b12fe6e6d35ff09d8353082404b1ae413e10396b372c17f. 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/JPB600593453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b06f15f870a29cc957cc5b86db11cfc51bdcc76fc086eaa7330030f90f08b95. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/JPB600593455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6eef556ac320797c0a7fb5015a8bc530a052302cd1b4c79e88b7fa857596723. 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/JPB600687862.
BE THE ONE 2025 Astronomical(JAPAN) Remix