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 0x985472f99cbb785b07471a9b3d06a66b1cbf1e4a8d201d5b99573dc1de9e86ea. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07cbcb7d-cf57-4136-af36-7568e672f689.json and https://artists.proofprofile.net/proofs/artist/07cbcb7d-cf57-4136-af36-7568e672f689.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Virtual Insanity (feat. Lyn Inaizumi) [Cover]
Sunday Morning (feat. Yu-ri Tanaka) [Cover]
Don't You Worry 'bout a Thing feat.mizqui
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 0x33534ad6bccaa7015b78eaeec74c5ce40675a90c2662661c66673f353034e1df. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/JPV502500104.
Don't You Worry 'bout a Thing feat.mizqui / Dragonfly
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede669addb5a0887121725fa368c2ba39489071b25b595097a07d0235553f978. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:08:55Z), 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/TCJPF2594962.