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 0x193692ab5edb0aa2102589c8139592fe1e567f69b65d1352d8c9c31bbb4c740c. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e26a139-80d7-49de-abc6-dc8b07af01b9.json and https://artists.proofprofile.net/proofs/artist/7e26a139-80d7-49de-abc6-dc8b07af01b9.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 0x2661b3eed16b24993d759fba3bf8791477c24761384b6edadc8ec6391754b9b7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCAJA2479270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2d9659cbca78b435add667020a7122765de286bf64577c126b483453b7195e. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:52:47Z), 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/FR96X2544073.
Alsın Beni Benden Çok Mutsuzum Halimden (Enstrümantal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea580107b2e8fe53536b6e0ad88b534caa73f7d3156da503c079a592f331e1a. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:06:14Z), 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/FRX202557440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7394599be2f3bd9413aae73af83782139c01ac2cadfa22fc364a34d6c47b64b8. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:23:23Z), 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/QT65Y2506236.