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 0xe532bfcc358df9360fefb2ca3220886ebecad97004ed4337f9085b53bd59a8da. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce9a4741-12c0-4ada-a85b-4c326fe2a8a9.json and https://artists.proofprofile.net/proofs/artist/ce9a4741-12c0-4ada-a85b-4c326fe2a8a9.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 0x01f7a0ca1c982bf48462450d03cbb257762f675929b3f7e076d8ce060494e407. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:33:33Z), 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/KRA341776036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6e9840dd976ea27e81451fc3fc0a82b3222e629bf1250f2ed629b2834a38da. 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/KRA341776037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad60c16a66ab7e6c44b83a8f25aa2afdc52b5861757e9a4b27251342e8bd03d. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:14:28Z), 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/QZF452053285.
The Love Story of The Ant and The Grasshopper.
The moment when your dream and my dream become one
The Passion and Resurrection of Jesus Christ
Hey, servant! Keep your eyes on me. Meow!
I’m following that star, not knowing why
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66b54a54e4494e5f3d11074fb8c0ebba7fd3ee6c42af5a023983bf3737b60e5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/KRA381802041.