Dr. Demento
type: MusicGroup
genre: comedy
description: Barret Eugene Hansen (born April 2, 1941), also known professionally as Dr. Demento, is a retired American radio broadcaster and record collector specializing in novelty songs, comedy, and unusual rec
popularity: 9
followers: 11373
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1507e20407cfa9281a5a2847831649653ebc83cdfadd54eaf86f77e75d61abbd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4e74beb0-08b2-4de8-8fdd-cf6b7902d9c0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4e74beb0-08b2-4de8-8fdd-cf6b7902d9c0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4e74beb0-08b2-4de8-8fdd-cf6b7902d9c0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1507e20407cfa9281a5a2847831649653ebc83cdfadd54eaf86f77e75d61abbd","name":"Dr. Demento","registered_at":"2026-06-16T17:00:54Z","symbol":"NIM1117067","token_address":"0xf6349aacca3669173a961a11aa51074ee7b06a10","type":"artist","uuid":"4e74beb0-08b2-4de8-8fdd-cf6b7902d9c0"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1507e20407cfa9281a5a2847831649653ebc83cdfadd54eaf86f77e75d61abbd. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e74beb0-08b2-4de8-8fdd-cf6b7902d9c0.json and https://artists.proofprofile.net/proofs/artist/4e74beb0-08b2-4de8-8fdd-cf6b7902d9c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x1507e20407cfa9281a5a2847831649653ebc83cdfadd54eaf86f77e75d61abbd","name":"Dr. Demento","registered_at":"2026-06-16T17:00:54Z","symbol":"NIM1117067","token_address":"0xf6349aacca3669173a961a11aa51074ee7b06a10","type":"artist","uuid":"4e74beb0-08b2-4de8-8fdd-cf6b7902d9c0"}
album: Dr. Demento Reads Grimm's Fairy Tales
  type: MusicAlbum
  date published: 2008-05-05
album: First Century Dementia
  type: MusicAlbum
  date published: 2020-11-27
album: Get Demented
  type: MusicAlbum
  date published: 2025-10-10