Daniel Bangalter (, born 1947), known in his musical career as Daniel Vangarde, is a French former producer, lyricist and songwriter who co-wrote and produced several hit records in the 1970s and 1980
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 0x5a4cf4be12cb07dd8cb950866d1f847d45dc0a7f5aaad8006a494b5fef786609. 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/a8ab3732-9b98-401d-aaf4-cd12c453f78a.json and https://artists.proofprofile.net/proofs/artist/a8ab3732-9b98-401d-aaf4-cd12c453f78a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Vaults of Zagora Records Mastermind (1971-1984)
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 0xa2abf7f7a98f7fb81cb5c1c761abad9bd82896457a2d508f1fdcc9ce697cd673. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BEL017800132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf744bf804cf73cd4415b0230b8c8f705249d063fbd664b4117c3ac18b8a489. 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/FR58F7900260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6011f98193077e24ef3fde9c573ad21532876e6eed3fbbbcd290914fb303208. 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/BEL017800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae9579992fc64c1f3d0eea8132f3071f4a33a1d0ff728381b226c4450e7f71e. 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/BEL018000091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8b8c142972734ced4c1e96e372775522f8a09b8c251f042034209e6b0ba5df. 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/FR58F8400070.