Green is the color between cyan and yellow on the visible spectrum. It has 295-350 different shades. It is evoked by light which has a dominant wavelength of roughly 495570 nm. In subtractive color sy
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c689d469cfa312f3a08c6ba78d1a2ffb44b63d69fd869d864d49934e0ccf83. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d12cbe3c-7dc7-41ce-8d29-9e967a859673.json and https://artists.proofprofile.net/proofs/artist/d12cbe3c-7dc7-41ce-8d29-9e967a859673.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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