thumb | right Adasa () is a place referred to in the book 1 Maccabees, Chapter 7. The Aramaic language name used by the locals is not known, but was probably something like Ḥadaša. According to the
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 0x46bdc1d36dec9771268758d0d3b505442a21ede0385183a6b6e9ffcbc675027a. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f158bd52-6b51-41a2-bf82-1c1f3c178cc0.json and https://artists.proofprofile.net/proofs/artist/f158bd52-6b51-41a2-bf82-1c1f3c178cc0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).