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 0x8e3fc808e7f7e4de9692f711e5834b774306911595e2c7da138038c49e160646. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78c40f26-9e3e-453d-80cc-06b856b1f732.json and https://artists.proofprofile.net/proofs/artist/78c40f26-9e3e-453d-80cc-06b856b1f732.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 0xfbe7638eb69cdb878a72aacfc3532a9614312af980782d618adba6e5df83a520. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:29:17Z), 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/JPR502036757.
華Doll* Anthos* -Behind The Frame-RYOGA&MAHIRO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd532371db9c35a155cd0cae6cb4e1d6537125104774186947e89a755bfb7a4d5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPR502208056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd532371db9c35a155cd0cae6cb4e1d6537125104774186947e89a755bfb7a4d5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPR502208056.
華Doll* Anthos* -Behind The Frame-RYOGA&MAHIRO (ドラマトラック追加版)
華Doll* Anthos* -Behind The Frame-RYOGA&MAHIRO (Full Tracks)
Anthos* 2nd solo series -Air Quotes- “RYOGA”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae39fa4e745e0654673a841b3e5e1cb8c4d9ef1e504c136e532a083a2ea9294. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JP92E2300998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab61a2ab1c7ea9161afbc2f8f478a11f2b5ac8d2c4171eda033dc071a57ac40. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JP92E2300999.