Harvey Leonard Sussmann (known professionally as Harve Mann) is an American entertainer and songwriter. Mann is best known as “The Lounge Singer" character” on The David Letterman Show and as 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 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 0xd35f6ae956e9ae058bf6e4e9db9a8525a5021d94a6235de5b9ffa67603edf2f3. 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/9b67838a-4fdf-4dc2-9d37-ecf0eba47673.json and https://artists.proofprofile.net/proofs/artist/9b67838a-4fdf-4dc2-9d37-ecf0eba47673.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ballad Of Rocky & Other Songs By Harve Mann
Doin' the Santa Claus Shuffle (Rock Version)
Doin' the Hora Around the Menorah (Remastered)