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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3db339b22fc53f7bbd81638c512ce467d3698773de1b702b2fc7184fa10918. 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/4a3036cd-011a-4596-9def-467502d8df1c.json and https://artists.proofprofile.net/proofs/artist/4a3036cd-011a-4596-9def-467502d8df1c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bloomy Smile / Kirari Party Time (Aikatsu Planet! Version)
Data Carddass Aikatsu Planet! - Song Collection Vol.2
Matamatamatamatamata Ashita - Short Size
Jangan Menangis (feat. Adjie, Felicya, Mike, Ruri & Zian)