Junko Makiyama
type: MusicGroup
popularity: 6
followers: 362
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1e6adf0ed86dbc6d9c9aa824c344ec54abe39381548c9483d327712ad1bedc5a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8e1b682-5bff-48e6-9cdb-d5d0a197f4be.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8e1b682-5bff-48e6-9cdb-d5d0a197f4be.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a8e1b682-5bff-48e6-9cdb-d5d0a197f4be
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1e6adf0ed86dbc6d9c9aa824c344ec54abe39381548c9483d327712ad1bedc5a","name":"Junko Makiyama","registered_at":"2026-06-20T09:00:55Z","symbol":"NIM1572852","token_address":"0x07935b8c2683439eb5995c368680296179d5e560","type":"artist","uuid":"a8e1b682-5bff-48e6-9cdb-d5d0a197f4be"}
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 0x1e6adf0ed86dbc6d9c9aa824c344ec54abe39381548c9483d327712ad1bedc5a. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8e1b682-5bff-48e6-9cdb-d5d0a197f4be.json and https://artists.proofprofile.net/proofs/artist/a8e1b682-5bff-48e6-9cdb-d5d0a197f4be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x1e6adf0ed86dbc6d9c9aa824c344ec54abe39381548c9483d327712ad1bedc5a","name":"Junko Makiyama","registered_at":"2026-06-20T09:00:55Z","symbol":"NIM1572852","token_address":"0x07935b8c2683439eb5995c368680296179d5e560","type":"artist","uuid":"a8e1b682-5bff-48e6-9cdb-d5d0a197f4be"}
album: ミストラル
  type: MusicAlbum
  date published: 2008-11-19
album: Liberta
  type: MusicAlbum
  date published: 2009
album: リベルタ
  type: MusicAlbum
  date published: 2009-11-18
album: 月虹
  type: MusicAlbum
  date published: 2014-06-18
album: Mistral
  type: MusicAlbum
  date published: 2017-11-01
album: ルチア～スロベニア組曲 (10周年記念)
  type: MusicAlbum
  date published: 2017-11-15
album: Lucia - Slovenia Suite (10th Anniversary)
  type: MusicAlbum
  date published: 2018-11-27