Andy Rantzen
type: MusicGroup
genre: acid house
description: Andrew Rantzen is a Sydney-based lo-fi electronic recording artist and writer. Trained as a psychologist, he has been lecturer and tutor at the University of Sydney. He is most well known as part
popularity: 7
followers: 990
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5e095ab4d47ffc27a418ed26a58159a69baeabc7ae726d02855276f56633ab3b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a73a1651-db7b-45db-ba77-95859afe9df1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a73a1651-db7b-45db-ba77-95859afe9df1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a73a1651-db7b-45db-ba77-95859afe9df1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5e095ab4d47ffc27a418ed26a58159a69baeabc7ae726d02855276f56633ab3b","name":"Andy Rantzen","registered_at":"2026-06-20T08:08:03Z","symbol":"NIM1561911","token_address":"0xabb41d1687fc387c82bd97122233b2dfea0bbfcc","type":"artist","uuid":"a73a1651-db7b-45db-ba77-95859afe9df1"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e095ab4d47ffc27a418ed26a58159a69baeabc7ae726d02855276f56633ab3b. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a73a1651-db7b-45db-ba77-95859afe9df1.json and https://artists.proofprofile.net/proofs/artist/a73a1651-db7b-45db-ba77-95859afe9df1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x5e095ab4d47ffc27a418ed26a58159a69baeabc7ae726d02855276f56633ab3b","name":"Andy Rantzen","registered_at":"2026-06-20T08:08:03Z","symbol":"NIM1561911","token_address":"0xabb41d1687fc387c82bd97122233b2dfea0bbfcc","type":"artist","uuid":"a73a1651-db7b-45db-ba77-95859afe9df1"}
album: 1/66
  type: MusicAlbum
  date published: 2000
album: 1/66
  type: MusicAlbum
  date published: 2017-10-27
album: Was the Lesson Intended?
  type: MusicAlbum
  date published: 2024-10-31
album: Black Smoke (2025 Remaster)
  type: MusicAlbum
  date published: 2025-07-17