The Ziggurat
type: MusicGroup
description: right|thumb|300px|The Ziggurat, headquarters of the California Department of General Services The Ziggurat is a ten-story, stepped pyramidal office building and adjacent five-story concrete parking st
popularity: 2
followers: 404
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x728dd80a412adfcf51bb624502839da5205e117144d86c7606adfd3701882d6d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a13b654c-c067-4148-b46c-9e9f10765c25.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a13b654c-c067-4148-b46c-9e9f10765c25.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a13b654c-c067-4148-b46c-9e9f10765c25
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x728dd80a412adfcf51bb624502839da5205e117144d86c7606adfd3701882d6d","name":"The Ziggurat","registered_at":"2026-06-20T05:53:59Z","symbol":"NIM1532426","token_address":"0xb712bb3b5f0ab28c31c21ed02d1aaba5f8e8db5c","type":"artist","uuid":"a13b654c-c067-4148-b46c-9e9f10765c25"}
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 0x728dd80a412adfcf51bb624502839da5205e117144d86c7606adfd3701882d6d. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a13b654c-c067-4148-b46c-9e9f10765c25.json and https://artists.proofprofile.net/proofs/artist/a13b654c-c067-4148-b46c-9e9f10765c25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x728dd80a412adfcf51bb624502839da5205e117144d86c7606adfd3701882d6d","name":"The Ziggurat","registered_at":"2026-06-20T05:53:59Z","symbol":"NIM1532426","token_address":"0xb712bb3b5f0ab28c31c21ed02d1aaba5f8e8db5c","type":"artist","uuid":"a13b654c-c067-4148-b46c-9e9f10765c25"}
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