Michael Hayden
type: MusicGroup
genre: musicals
popularity: 12
followers: 66
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe0b8ee255fa99d6b805ecdc9f2cd1e430a6bed9c09de61e87d843cc72b396ec0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953588
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953588
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0293d372-73e2-4090-92c6-efa5847c25b8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0293d372-73e2-4090-92c6-efa5847c25b8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0293d372-73e2-4090-92c6-efa5847c25b8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T04:52:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe0b8ee255fa99d6b805ecdc9f2cd1e430a6bed9c09de61e87d843cc72b396ec0","name":"Michael Hayden","registered_at":"2026-06-14T04:42:39Z","symbol":"NIM0341942","token_address":"0x57318933e4a26b24fcd7aecaa7f86051036b4e58","type":"artist","uuid":"0293d372-73e2-4090-92c6-efa5847c25b8"}
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 0xe0b8ee255fa99d6b805ecdc9f2cd1e430a6bed9c09de61e87d843cc72b396ec0. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0293d372-73e2-4090-92c6-efa5847c25b8.json and https://artists.proofprofile.net/proofs/artist/0293d372-73e2-4090-92c6-efa5847c25b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T05:36:59Z
  text: {"copyright_id":"0xe0b8ee255fa99d6b805ecdc9f2cd1e430a6bed9c09de61e87d843cc72b396ec0","name":"Michael Hayden","registered_at":"2026-06-14T04:42:39Z","symbol":"NIM0341942","token_address":"0x57318933e4a26b24fcd7aecaa7f86051036b4e58","type":"artist","uuid":"0293d372-73e2-4090-92c6-efa5847c25b8"}
album: Realign
  type: MusicAlbum
  date published: 2007-04-30
album: 2012 American Choral Directors Association, Western Division (ACDA): Justice Myron E. Leavitt Middle School Chamber Singers & Mira Costa High School Vocal Ensemble
  type: MusicAlbum
  date published: 2012-04-01
album: 2012 American Choral Directors Association, Western Division (ACDA): Justice Myron E. Leavitt Middle School Chamber Singers & Mira Costa High School Vocal Ensemble
  type: MusicAlbum
  date published: 2012-04-01