Sons of the Morning is a 1945 verse drama Australian play by Catherine Duncan. It was originally written for radio. It won first prize in the 1945 Playwrights' Advisory Board competition and was perf
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 0x843adb37a8b6d3b0581901ab2766464b49a2675b14ff7d0810c4560149f63e2f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83ff5251-2cc7-4106-81cd-af5e5d12f977.json and https://artists.proofprofile.net/proofs/artist/83ff5251-2cc7-4106-81cd-af5e5d12f977.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).