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 0x930564132dfeedfd75946aae05f7375b0485ff207857b34d26ca248a3d443cde. Chain 2 (Bitcoin): anchored in block 954019 (2026-06-16T23:44:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37c16195-3985-4698-b7b4-985d2d0e902d.json and https://artists.proofprofile.net/proofs/artist/37c16195-3985-4698-b7b4-985d2d0e902d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
恋のマジックポーション (feat. 棗いつき)
ONE NIGHT STAND (GsBR's Cover Ver.) [feat. 本木咲黒]
太陽が燃えている (GsBR's Cover Ver.) [feat. 坪井 蘭]
SEE YOU (GsBR's Cover Ver.) [feat. 本木咲黒]
AMBITIOUS (GsBR's Cover Ver.) [feat. 加藤はるか]
POP IS MY LIFE (GsBR's Cover Ver.) [feat. 坪井 蘭]
シングルベッド (GsBR's Cover Ver.) [feat. 加藤はるか]
シングルベッド [feat. 加藤はるか] - GsBR's Cover Ver.
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 0x12aed7b89d90fffb4145bd4cb433f9f8f2624da28cdc693c8df6a3271eb133ab. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPH1862767.
KNOCKIN' ON YOUR DOOR (GsBR's Cover Ver.) [feat. ハザマ ララ]
今宵の月のように (GsBR's Cover Ver.) [feat. 加藤はるか]
RAIN IN MY HEART (GsBR's Cover Ver.) [feat. Noir]
1/3の純情な感情 (feat. 佐久間ゆめ) [GsBR's Cover Ver.]
R!×R!×R! ~featuring 80's-90's~ (Extended Version)
R!×R!×R!～featuring 80's-90's～ (Extended Version)