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 0x8424db18596f562c8dd4f7dbb0995b9408626a4f194acb1a2217903046ae0831. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44e2c78b-7a02-4980-9a69-f95903923861.json and https://artists.proofprofile.net/proofs/artist/44e2c78b-7a02-4980-9a69-f95903923861.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Live at Shibuya CLUB QUATTORO / 23 jul 2007
One Comfortable Bed In The World (live 2007)
You just swept me off my feet (live 2007)
You Just Swept Me Off My Feet feat. Keiko Hiraoka
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 0xa9ea7b0f43857d0c24b5e8c6c1204c2cd05d3820b88e07a7569906a758f3ba35. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/JPC750999992.
You Just Swept Me Oｆf My Feet (feat. Keiko Hiraoka)
You just swept me off my feet (live 2019)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e367bf5657590de6e88507c3a71b0b3542a2534518c979aaadb6f45512a3bf. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:49:41Z), 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/JP92N2512056.