Adelpha is a genus of brush-footed butterflies found from the southern United States and Mexico to South America. They are commonly known as sisters, due to the white markings on their wings, which re
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 0x48f7f1f15efc9e8c6c640fdc53879db073a8b7862acc550526c299f0133f4ee0. Chain 2 (Bitcoin): anchored in block 953709 (2026-06-14T23:31:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d1faf32-e0a1-418a-8cbf-29bed45b3116.json and https://artists.proofprofile.net/proofs/artist/7d1faf32-e0a1-418a-8cbf-29bed45b3116.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).