2VOICE
type: MusicGroup
genre: enka
popularity: 2
followers: 189
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdb9a28e693ca2d20d6685abd30fa93ca29388c5218c37fdb5b0fcc3a0486f5b3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954573
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954573
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b4135b64-54d7-40d9-bbff-3d6325390b31.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b4135b64-54d7-40d9-bbff-3d6325390b31.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b4135b64-54d7-40d9-bbff-3d6325390b31
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T15:45:29Z
additional property: OTSCanonicalRecord
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 0xdb9a28e693ca2d20d6685abd30fa93ca29388c5218c37fdb5b0fcc3a0486f5b3. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4135b64-54d7-40d9-bbff-3d6325390b31.json and https://artists.proofprofile.net/proofs/artist/b4135b64-54d7-40d9-bbff-3d6325390b31.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T15:45:29Z
album: 120歳のLove Song
  type: MusicAlbum
  date published: 2016-09-28
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  type: MusicAlbum
  date published: 2018-10-31
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  type: MusicAlbum
  date published: 2021-04-26
album: ミュージック・セレナーデ・セレクションVol.２ ～旅＃１～
  type: MusicAlbum
  date published: 2021-05-26
album: ミュージック・セレナーデ・セレクションVol.３ ～音楽＃１～
  type: MusicAlbum
  date published: 2021-06-26
album: ミュージック・セレナーデ・セレクションVol.4 ～映画＃２～
  type: MusicAlbum
  date published: 2021-07-26
album: ミュージック・セレナーデ・セレクションVol.5 ～旅＃2～
  type: MusicAlbum
  date published: 2021-08-26
album: ミュージック・セレナーデ・セレクションVol.6 ～音楽＃２～
  type: MusicAlbum
  date published: 2021-09-26
album: ミュージック・セレナーデ・セレクションVol.7 ～映画＃3～
  type: MusicAlbum
  date published: 2021-10-26
album: ミュージック・セレナーデ・セレクションVol.８ ～ウィンター・ラヴ・ソングス・オン・ユア・クリスマス・デイ～
  type: MusicAlbum
  date published: 2021-11-10
album: ミュージック・セレナーデ・セレクションVol.９ ～ファブ４・フロム・リヴァプール～
  type: MusicAlbum
  date published: 2021-12-08
album: ミュージック・セレナーデ・セレクションVol.10 ～Songs of Love～
  type: MusicAlbum
  date published: 2022-01-26
album: ミュージック・セレナーデ・セレクション (Vol.11 ～Friends and Happiness～)
  type: MusicAlbum
  date published: 2022-02-26
album: ミュージック・セレナーデ・セレクション (Vol.12 ～Family and Memories～)
  type: MusicAlbum
  date published: 2022-03-26
album: How Old Is Your Soul
  type: MusicAlbum
  date published: 2022-11-01
album: REBORN 2
  type: MusicAlbum
  date published: 2024-02-14
album: REBORN 3
  type: MusicAlbum
  date published: 2024-10-01