Ari Posner
type: MusicGroup
description: Ari Posner (born 1970) is a Canadian film and television composer, most noted as a multiple Gemini Award and Canadian Screen Award winner for his television scores.Alexandra Lopez-Pacheco, "A breakthr
popularity: 42
followers: 4928
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbca468b61f64e48ade7bbc062672dc294dd47226b307664195b7e6381d44fe67
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/72eb2bd2-fcbc-4e3f-80f5-5f3834159c15.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/72eb2bd2-fcbc-4e3f-80f5-5f3834159c15.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/72eb2bd2-fcbc-4e3f-80f5-5f3834159c15
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbca468b61f64e48ade7bbc062672dc294dd47226b307664195b7e6381d44fe67","name":"Ari Posner","registered_at":"2026-06-12T01:02:23Z","symbol":"NIM0150504","token_address":"0x592968ec6dcaa05caddd6f5d179b425aaedbf855","type":"artist","uuid":"72eb2bd2-fcbc-4e3f-80f5-5f3834159c15"}
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 0xbca468b61f64e48ade7bbc062672dc294dd47226b307664195b7e6381d44fe67. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72eb2bd2-fcbc-4e3f-80f5-5f3834159c15.json and https://artists.proofprofile.net/proofs/artist/72eb2bd2-fcbc-4e3f-80f5-5f3834159c15.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xbca468b61f64e48ade7bbc062672dc294dd47226b307664195b7e6381d44fe67","name":"Ari Posner","registered_at":"2026-06-12T01:02:23Z","symbol":"NIM0150504","token_address":"0x592968ec6dcaa05caddd6f5d179b425aaedbf855","type":"artist","uuid":"72eb2bd2-fcbc-4e3f-80f5-5f3834159c15"}
album: Anne With An E (Music From The Netflix Original Series)
  type: MusicAlbum
  date published: 2019-12-27