Greta Gertler is a pianist, singer, and songwriter. She was Born in Boston, Massachusetts and grew up in Sydney, Australia, and got her start there as a songwriter, performing and penning hits for ot
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 0x97a315b1e7174a3645868558dd51022c04daf29adbef8bea56ab1382aec129a5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33546e6b-6d01-416e-80ab-4b13ddf68697.json and https://artists.proofprofile.net/proofs/artist/33546e6b-6d01-416e-80ab-4b13ddf68697.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).