David Immanuel Menachem Sasagi Le’aupepe is an Australian singer, songwriter, guitarist and frontman of alternative rock band Gang of Youths, which he founded in 2011. He served as the sole songwriter
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 0x36852e693edc4f5943c80a0392da57b2963b50dc35192b0d2ec0a2e19b578342. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b3cbfc7-17e2-4c76-adf3-027b0fe9fe6d.json and https://artists.proofprofile.net/proofs/artist/4b3cbfc7-17e2-4c76-adf3-027b0fe9fe6d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).