Mari
type: MusicGroup
genre: bubblegum pop
popularity: 2
followers: 142
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9aa008eb05c4af34daafa39650be54f2db6fc0a241aa09e630d28c1f90e88282
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954014
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954014
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/35722185-095d-46b8-8561-78ae2560d824.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/35722185-095d-46b8-8561-78ae2560d824.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/35722185-095d-46b8-8561-78ae2560d824
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:46:20Z
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 0x9aa008eb05c4af34daafa39650be54f2db6fc0a241aa09e630d28c1f90e88282. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35722185-095d-46b8-8561-78ae2560d824.json and https://artists.proofprofile.net/proofs/artist/35722185-095d-46b8-8561-78ae2560d824.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
album: ザ ファースト アルバム
  type: MusicAlbum
  date published: 2019-09-06
album: ザ セカンド アルバム
  type: MusicAlbum
  date published: 2019-09-11
album: 君がいるから
  type: MusicAlbum
  date published: 2020-02-07
album: 想いのカケラ
  type: MusicAlbum
  date published: 2020-07-01
album: ツバサ
  type: MusicAlbum
  date published: 2021-08-18
album: きらめきの風
  type: MusicAlbum
  date published: 2021-08-18
album: Awaken
  type: MusicAlbum
  date published: 2021-10-06
album: Leuca.
  type: MusicAlbum
  date published: 2022-05-22
album: Message
  type: MusicAlbum
  date published: 2023-07-25
album: Air.
  type: MusicAlbum
  date published: 2024-04-04
album: the wind
  type: MusicAlbum
  date published: 2024-04-12