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 0xaab81b107a3942ccc35f4de0b3fa2a8aed8ec7c45125c09fd0c5af8566a95e44. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/545cfb9e-2a4d-4bf3-bb02-9c45f21c0396.json and https://artists.proofprofile.net/proofs/artist/545cfb9e-2a4d-4bf3-bb02-9c45f21c0396.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Precipitation at the Entrance (Cytus Ost Version)
CHUNITHM ALL JUSTICE COLLECTION episode III 2
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