Judd Woldin (May 30, 1925 – November 27, 2011) was an American composer, most notable for his musical Raisin. Biography Edwin Judd Woldin was born in Somerville, New Jersey. At the age of eight, he b
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f304185ae6366a7255dedb35c2e9014b58cf84c6038f9bd717338ae6537c7b. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b666719-f15a-4d40-82c6-70f1eeccbdb1.json and https://artists.proofprofile.net/proofs/artist/9b666719-f15a-4d40-82c6-70f1eeccbdb1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Raisin (Original Broadway Cast Recording)