1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xa2d0277fab080f4acc716192c89d71125f05eaafa5234df5e4a4180c29af6711. Chain 2 (Bitcoin): anchored in block 953667 (2026-06-14T17:49:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5712e0cc-b9fe-4ef1-849c-2f7322b5b844.json and https://artists.proofprofile.net/proofs/artist/5712e0cc-b9fe-4ef1-849c-2f7322b5b844.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 → block OTSBitcoinBlock must exist at that height 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 0x713696b46f2532bed39ad3ccb49e3963138fd7594d3c7e4c729382363e2ecb2c. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:04:18Z), 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/GBMA21982624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31657a3f16420627a10e3fa3025e28d1fed3799b2712bc61a43cd759a994f1cb. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:46:20Z), 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/GBLFP1914971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1b867d95e62610892c7f74c4d228ec11d155f1206c7cd73cb398fb67fca3e1. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/UKXN22210840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948af8667d7432720c5cfafc3f54f97a9a1af35dad1923f03c746721dfea5e66. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GBMA22447827.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53cd04a5f54e8de2395f93b15422bd4a1c20dd4ceb82b8f50a51e65103c9d24e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GXF9Q2476861.
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