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 0xd7f03a8b56847206eecb5e04651bbaf9118d0eb6b4b110c5e84d19753ba11a18. 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/061a88bb-435a-42de-9bad-ee3b7705361a.json and https://artists.proofprofile.net/proofs/artist/061a88bb-435a-42de-9bad-ee3b7705361a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ヒカリの春 - アコースティックバージョン
「40歳問題」ミニ・オリジナル・サウンドトラック
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 0x9dd0ab53165f6388222c82c5b96ebfa47b070726682a68b08ba4b21c04e65b4a. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPVI01607250.
Rhyme Of The Place Where The Sun Rises (demo version)
TOUCH! SCRATCH! IT'S SMOKY IN HERE～あたしはあたしでいられなくなる
俺はまたいつかいなくなるから (Live at 渋谷クラブクアトロ 2002.5.25)
SONIC CITY SURVIVER～瞬間接着愛 (Live at 渋谷クラブクアトロ 2002.5.25)
時はただ今だけを乗せて (Live at 渋谷クラブクアトロ 2002.5.25)
Because I'll Be Gone Again Someday (Live at SHIBUYA CLUB QUATTRO May 25 2002)
SONIC CITY SURVIVER (Live at SHIBUYA CLUB QUATTRO May 25 2002)
MUSASINO (Live at SHIBUYA CLUB QUATTRO May 25 2002)
Only Now (Live at SHIBUYA CLUB QUATTRO May 25 2002)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3e680165ae9c8953be66e9c6c6a9c75cde886ba45a0f87772ab4e1dc6fea7c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPVI00212060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb885163e7c9a5891723d97ae8e2c9e4c026efc185c21ed0057320457e5572cf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPTO00502663.