Zoe or variants may refer to: People Zoe (name), including a list of people and fictional characters with the name Zoë (British singer) (Zoë Pollock, born 1969) Zoë (Austrian singer) (Zoë Straub,
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 0x735e1d30048969b8747133175aee2fe187bc74369a1149e3e6eed59668f6ae47. Chain 2 (Bitcoin): anchored in block 954055 (2026-06-17T05:51:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43850d81-77f9-43d4-9b09-d44e3f83ec27.json and https://artists.proofprofile.net/proofs/artist/43850d81-77f9-43d4-9b09-d44e3f83ec27.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).