Chosen or The Chosen may refer to: Books Chosen (Dekker novel), a 2007 novel by Ted Dekker Chosen (Cast novel), a novel in the House of Night fantasy series Chosen (Image Comics), a comic book series
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 0x7cb6baef75ca7dcbb6b84011b778e93f72f407af246ae0d7e4a9cc0bc3389f85. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ac0d476-1e33-418d-abbd-4bb177e3e2c8.json and https://artists.proofprofile.net/proofs/artist/3ac0d476-1e33-418d-abbd-4bb177e3e2c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).