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 0xf0424f5039ff98a391402737ccec40d809d0688219838745930503ca366b6ae8. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e06fe0c2-8173-4a1e-b6dd-5b9502525627.json and https://artists.proofprofile.net/proofs/artist/e06fe0c2-8173-4a1e-b6dd-5b9502525627.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xaac8186b0c13567f4af01376f30e04625f6b7b0d0e755f810f3abb095d99cbc3. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/FR9W12111026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092637d7cf3ef52dea864fac0146c2eefbc3063b92d46672385ceb69522a587d. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/FR9W12111024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac8186b0c13567f4af01376f30e04625f6b7b0d0e755f810f3abb095d99cbc3. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/FR9W12111026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8801782c915471875901eeb87e21b2d3704b077562cca3528def2a9a363769. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/FR9W12233406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a509498ac9e81d4e133b959e63cd3f6dcd0b9ffcf444b881d3638d14365e39e. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:23:41Z), 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/FR9W12233411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a85d466a563363b818a3eec0a269f646c2185547be22d87ba21eae6ac57ffa. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR9W12233405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8801782c915471875901eeb87e21b2d3704b077562cca3528def2a9a363769. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FR9W12233406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a509498ac9e81d4e133b959e63cd3f6dcd0b9ffcf444b881d3638d14365e39e. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:50:35Z), 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/FR9W12233411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39823cc3ecd7d3edd6b6ed2af41e2a79b339986ce0dddb5cac8cf058878a37ef. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR9W12502079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7d51716560442a121626d4c287e8695fbf6214f98aee0a760d20f74f382ca4. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FR9W12502083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3691530be166944261b18a15d9cf2e8249aa03afac50abea973c60e55e5d98ba. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FRX282002506.
Emilia Pérez (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdcc379e1fe659c92ffd0947c3dda38625c3067bfad3b5e645135fe30753d6c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR9U72400043.