David Greenberg could refer to: David Aaron Greenberg (born 1971), American poet, songwriter, artist and art critic David Michael Greenberg, American psychologist and musician David Greenberg (histor
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 0x8e0ce42f12fbb7880f87d6205b135833cb68bdf5c81aeab28f7a9d713fa6a126. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f06d75b9-4bc3-4ee2-a00d-035184468e77.json and https://artists.proofprofile.net/proofs/artist/f06d75b9-4bc3-4ee2-a00d-035184468e77.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Spring Any Day Now - Music Of 18th Century Scotland