Phillip John "Pip" Proud (11 September 1947 – 4 March 2010) was an Australian singer-songwriter, poet, novelist and dramatist whose idiosyncratic song-poems gained a cult following in Australia in 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f136000f480a4d19db0c166ac5a2b94e627511960a794163b8680040be68a8. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/452b1b50-2bd9-4c95-9b0d-82f421ab115d.json and https://artists.proofprofile.net/proofs/artist/452b1b50-2bd9-4c95-9b0d-82f421ab115d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).