Patrick Kavanagh (21 October 1904 – 30 November 1967) was an Irish poet and novelist. His best-known works include the novel Tarry Flynn, and the poems "On Raglan Road" and "The Great Hunger". He is k
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1d21989611f9762880fbaecd84b8ac00ca4c0a4a0aa2c78f20e23ec55cf9fc. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23690b2b-d45b-4960-829b-ab23a9a1322b.json and https://artists.proofprofile.net/proofs/artist/23690b2b-d45b-4960-829b-ab23a9a1322b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).