Michael Buchanan
type: MusicGroup
description: Michael or Mike Buchanan may refer to: Mike Buchanan (ice hockey) (1932–2017), Canadian ice hockey player Mike Buchanan (politician) (born 1957), British men's rights activist, leader of the Justic
popularity: 4
followers: 494
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ea4afcc7d0b4cd61960a1b04f45608c68729f08a90b3e2d20258baa17925e6f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954593
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954593
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/be5b3e6e-40b4-4dfc-ae88-c62175a64947.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/be5b3e6e-40b4-4dfc-ae88-c62175a64947.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/be5b3e6e-40b4-4dfc-ae88-c62175a64947
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:46:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2ea4afcc7d0b4cd61960a1b04f45608c68729f08a90b3e2d20258baa17925e6f","name":"Michael Buchanan","registered_at":"2026-06-20T18:25:21Z","symbol":"NIM1677789","token_address":"0xc56eff22fe9acfd757d2f13a593ef9b0c1b99227","type":"artist","uuid":"be5b3e6e-40b4-4dfc-ae88-c62175a64947"}
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 0x2ea4afcc7d0b4cd61960a1b04f45608c68729f08a90b3e2d20258baa17925e6f. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be5b3e6e-40b4-4dfc-ae88-c62175a64947.json and https://artists.proofprofile.net/proofs/artist/be5b3e6e-40b4-4dfc-ae88-c62175a64947.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:46:01Z
  text: {"copyright_id":"0x2ea4afcc7d0b4cd61960a1b04f45608c68729f08a90b3e2d20258baa17925e6f","name":"Michael Buchanan","registered_at":"2026-06-20T18:25:21Z","symbol":"NIM1677789","token_address":"0xc56eff22fe9acfd757d2f13a593ef9b0c1b99227","type":"artist","uuid":"be5b3e6e-40b4-4dfc-ae88-c62175a64947"}
album: Midnight Moonlight Magic
  type: MusicAlbum
  date published: 2018-02-28
album: The Many Faces of God
  type: MusicAlbum
  date published: 2019-10-18