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 0x38523866cb200f0b80cc90fb2b04c733d1c0dd59b8f0cb6f72ae32e607b0fa21. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8c84caf-c0f3-49e8-885e-a26510d809d4.json and https://artists.proofprofile.net/proofs/artist/d8c84caf-c0f3-49e8-885e-a26510d809d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
デスシンガー（発令！第十一号作戦後段作戦ボス戦）
From da City (feat. Kristyle, B Hav, Lionheart, Gk, Degree, Gangsta Boo & Allie Baby)
Drum Gang (feat. B Hav, Degree, Gk, Kristyle, Allie Baby & Gangsta Boo)