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 0x9c11b1fb64eee673a1f80daa5be9e238121c82de766a2c552ee6fe0771863e03. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2354afd-f354-4c43-905f-daaea2cdc739.json and https://artists.proofprofile.net/proofs/artist/e2354afd-f354-4c43-905f-daaea2cdc739.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
「和楽器バンド TOUR 2018 音ノ回廊 -oto no kairou-」SET LIST
{"copyright_id":"0x7652738362f303107d5ee50b076ba4730af57fdc2b991d5dddbdc03611c1efc0","isrc":"JPPO02002280","name":"Sakura Rising","registered_at":"2026-06-11T03:31:42Z","spotify_id":"3h6pdPWfuYwtGXXPemOeyN","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7652738362f303107d5ee50b076ba4730af57fdc2b991d5dddbdc03611c1efc0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3h6pdPWfuYwtGXXPemOeyN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3h6pdPWfuYwtGXXPemOeyN.
Starlight - I vs I ver. / Remastered 2024