Masumi Ako
type: MusicGroup
genre: japanese indie
popularity: 10
followers: 573
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5cee0f1ce1f2e8b60d50871c992f225d1daccbfbd07705dc05944ba35945f128
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f9fd7aef-bfd4-4892-a92f-4a7ce2f6488a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f9fd7aef-bfd4-4892-a92f-4a7ce2f6488a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f9fd7aef-bfd4-4892-a92f-4a7ce2f6488a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5cee0f1ce1f2e8b60d50871c992f225d1daccbfbd07705dc05944ba35945f128","name":"Masumi Ako","registered_at":"2026-06-21T16:34:22Z","symbol":"NIM1974713","token_address":"0x47026ebce8b976ced8580209689df6b9610f345c","type":"artist","uuid":"f9fd7aef-bfd4-4892-a92f-4a7ce2f6488a"}
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 0x5cee0f1ce1f2e8b60d50871c992f225d1daccbfbd07705dc05944ba35945f128. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9fd7aef-bfd4-4892-a92f-4a7ce2f6488a.json and https://artists.proofprofile.net/proofs/artist/f9fd7aef-bfd4-4892-a92f-4a7ce2f6488a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x5cee0f1ce1f2e8b60d50871c992f225d1daccbfbd07705dc05944ba35945f128","name":"Masumi Ako","registered_at":"2026-06-21T16:34:22Z","symbol":"NIM1974713","token_address":"0x47026ebce8b976ced8580209689df6b9610f345c","type":"artist","uuid":"f9fd7aef-bfd4-4892-a92f-4a7ce2f6488a"}
album: Moon
  type: MusicAlbum
  date published: 2019-12-29
album: 月
  type: MusicAlbum
  date published: 2019-12-29
album: あなたのそばで
  type: MusicAlbum
  date published: 2020-04-25
album: ノスタルジア
  type: MusicAlbum
  date published: 2020-04-25
album: By Your Side
  type: MusicAlbum
  date published: 2020-04-25
album: Nostalgia
  type: MusicAlbum
  date published: 2020-04-25
album: Omoide
  type: MusicAlbum
  date published: 2021-05-07
album: Nature
  type: MusicAlbum
  date published: 2021-12-01
album: Life was a Pain
  type: MusicAlbum
  date published: 2021-12-01
album: Nature (阿児万寿美 ver.)
  type: MusicAlbum
  date published: 2021-12-19
album: Life was a Pain (阿児万寿美 ver.)
  type: MusicAlbum
  date published: 2021-12-19
album: Nature (Masumi Ako's ver.)
  type: MusicAlbum
  date published: 2021-12-19
album: Life was a Pain (Masumi Ako's ver.)
  type: MusicAlbum
  date published: 2021-12-19
album: Let It Go
  type: MusicAlbum
  date published: 2023-12-23
album: LIFE
  type: MusicAlbum
  date published: 2023-12-23
album: Let It Go
  type: MusicAlbum
  date published: 2023-12-23
album: LIFE
  type: MusicAlbum
  date published: 2023-12-23
album: Tears
  type: MusicAlbum
  date published: 2023-12-30
album: 涙
  type: MusicAlbum
  date published: 2023-12-30