April Henry
type: MusicGroup
description: April Henry (born April 14, 1959) is an American New York Times bestselling author of mysteries, thrillers, and young adult novels. Early life Born in Portland, Oregon, April 14, 1959, Henry grew up
popularity: 3
followers: 98
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x939b0ca2da69f6b225300990861983884bf7764fc6f22f24befc0509bb33d13e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3b54f53-0237-4f5b-9bc7-3b24d2734783.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3b54f53-0237-4f5b-9bc7-3b24d2734783.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d3b54f53-0237-4f5b-9bc7-3b24d2734783
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x939b0ca2da69f6b225300990861983884bf7764fc6f22f24befc0509bb33d13e","name":"April Henry","registered_at":"2026-06-21T01:46:30Z","symbol":"NIM1781815","token_address":"0x20e753449ad8aef270d72e038317c00034d6abc8","type":"artist","uuid":"d3b54f53-0237-4f5b-9bc7-3b24d2734783"}
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 0x939b0ca2da69f6b225300990861983884bf7764fc6f22f24befc0509bb33d13e. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3b54f53-0237-4f5b-9bc7-3b24d2734783.json and https://artists.proofprofile.net/proofs/artist/d3b54f53-0237-4f5b-9bc7-3b24d2734783.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0x939b0ca2da69f6b225300990861983884bf7764fc6f22f24befc0509bb33d13e","name":"April Henry","registered_at":"2026-06-21T01:46:30Z","symbol":"NIM1781815","token_address":"0x20e753449ad8aef270d72e038317c00034d6abc8","type":"artist","uuid":"d3b54f53-0237-4f5b-9bc7-3b24d2734783"}
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