Sourya is a French pop band formed in 2005. Sourya "Daddy Sou" (vocals/guitar) initiated the project. After playing in a Parisian band from 1997 to 2005, he began recording demos. In 2005, he met his
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2294ee3b97d234261b1985a0c07e02468380b9a2a7986c9b79cae4f13b2b4b9e. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b4b3f14-bba8-4dd4-b36a-b4db9aff8b07.json and https://artists.proofprofile.net/proofs/artist/1b4b3f14-bba8-4dd4-b36a-b4db9aff8b07.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Les Brebis ne Savent Pas Nager (Original Motion Picture Soundtrack)
Kitsuné Soleil Mix 2 by Gildas Kitsuné & Jerry Bouthier
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328baa428b566773b18fd0e1e22ed3646829b33befa14be25b36df6f3fb74995. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRU701300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902fc5199667698d888e6238c62591f4d57f07fe3898dbb25be27f1a03a8b7f8. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FRR641800254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd96fb76f97f4e7c4a7c15a28cc950e080831509a833c5519e9c5444e67c7057. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRR641800257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9753e5eeb5e78a1f855dba8debec702613bea370f7685d264d6cb72f82195fce. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR3DM1200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25515423369b2ab1e97264aa9450c28f8490068458573a4a2b459a76ad6bddf9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR6V80607759.