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 0x9e6852e37d080aeaeafebb3d259e78ac673c7d5510c70fa778d6d51c4d95f70a. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6557d23a-828e-4f7f-b8a8-742436bb707e.json and https://artists.proofprofile.net/proofs/artist/6557d23a-828e-4f7f-b8a8-742436bb707e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
You Make Me Lose My French by MARC DORCEL
ETIHAD - Onboarding - International - Day Version
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 0x20e992a1719ebe14cef27e3cbfc5696f81eff50f4c2a3aaa56dd0e89c004f85c. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/FRDCX2069480.
ETIHAD - Onboarding - International - Night Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760e49366fcb696dccb79d60e8af406e33348dfd3584cb7dce24dc3b8b050d20. 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/FRDCX2069490.
ETIHAD - Onboarding - Abu Dhabi - Day Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405d1d86d884fe7d943aabc311c1f59c4df12ad6934eae291cd9de8a544e8b46. 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/FRDCX2069500.
ETIHAD - Onboarding - Abu Dhabi - Night Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e28ae4276e524445c717112df8ef4dc0c41a20c978767467028c9c20f70af67. 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/FRDCX2069510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2a7a12ed0e6c70382e13f8a5b75520a0084d68baae8dd254c82bf53b5ea116. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/FRDKW2208357.
Parlons d'Impact avec Grégoire Chauvière Le Drian (BEI)