1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xb57d6ba40d84903eb1891e9585acf5ac967cf8a91a86efbd62b7dce5537653c1. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf211d18-5f0a-440f-940f-e93f4c3ea327.json and https://artists.proofprofile.net/proofs/artist/bf211d18-5f0a-440f-940f-e93f4c3ea327.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Game Altering (from BSTS Modifier Mania Grand Finals)
Nostalgia Trip (Even Less Nostalgic Remix)