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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed8c08fde1cddaf5487858c9a0036d8de5165775c929d5c4c471100289c5d6c. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0ced406-cb19-4e88-bcff-7807fc4cfe88.json and https://artists.proofprofile.net/proofs/artist/a0ced406-cb19-4e88-bcff-7807fc4cfe88.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdbaf0ef07e5ed4682ed2c644d35090b7dc03da8e7980bae5b2b389b81a9fc0. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPA2412181 — a six-check JSON result.
Poetry of the Lost Forest (feat. Miyamai Moca & KASANE TETO)
the end of the world (feat. KASANE TETO & Miyamai Moca)
Lightning pierces the sky (feat. KASANE TETO)
I'm intoxicated by your shadow (feat. KASANE TETO)
Goodbye the Mad World (feat. KASANE TETO)
気づけば深夜3時だ！ (feat. 重音テト & 宮舞モカ)
If you notice it, it's three o'clock in the morning! (feat. KASANE TETO & Miyamai Moca)
way to end a long nightmare (feat. KASANE TETO & Miyamai Moca)
永い悪夢を終わらせる方法 (feat. 重音テト & 宮舞モカ)
The sky that I've seen so much (feat. Miyamai Moca)
the prison of one's dreams (feat. KASANE TETO & Miyamai Moca)
If I were born on the day a meteorite fell