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 0xc01a831f1151893adaf7be0515b30620a74fd9b0e548f6411cca86acc4131d69. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10420250-bb61-4c2d-a8cb-8a70db202e87.json and https://artists.proofprofile.net/proofs/artist/10420250-bb61-4c2d-a8cb-8a70db202e87.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
French Disco Boogie Sounds, Vol. 2 (1978-1985)
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 0xf44687f588eaf8f65ee328e878588e0731e9fff39aed6f9f37eb4fe02257a879. 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/FR7Z28500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6aed8b01d693be58faaf5910bda0b5bc4ee532de1b7b12fdddcb8bc4fdabfe. 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/FR7Z28200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552d2260d8695740faf257b38b3a768e9b31b637fde89e3153a339bfd81658b8. 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/FR7Z28300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751583155673785a89f3c53056a35a4fd1abae462950a1e530318bf95d269165. 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/FR7Z28500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02547fc349a53980aa6edddfb13e06bef91880939f4b3b059060ccbb7c742fb2. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/NL7Z28200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee9bbc5475d48dd41f1487b54b5d630a42e770c2b0cf7a1e6c08911e2c6fc7d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR7Z28200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59ac06a9d9e9d426da2610111a0444ea29860f2b0d54923be8ea02d8ed620ed. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/FR7Z28700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077db6792a1d457c4f77b0e4ee9e3554b9d5f39fdc47d4d85d21d9e750000b52. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:42:54Z), 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/FR7Z28100038.
French Disco Boogie Sounds, Vol. 3 (1977-1987)
Music Madness (Extended Charles Maurice Version) - Mixed
DJ-Kicks (Kerri Chandler) [Mixed Tracks]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eaf3a000ea56ee980491f46e3c5da43c1a8c371e07a5eced0bb3b6b4bd07385. 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/DEG931791927.