MATHU
type: MusicGroup
popularity: 9
followers: 215
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc3d0b481cd61cf28a7748c99b58c95c267bc6fee4d27f088ec746d82ac38f1de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef31ee00-4f27-4e3a-89fc-34f9e7984335.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef31ee00-4f27-4e3a-89fc-34f9e7984335.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ef31ee00-4f27-4e3a-89fc-34f9e7984335
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
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 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 0xc3d0b481cd61cf28a7748c99b58c95c267bc6fee4d27f088ec746d82ac38f1de. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef31ee00-4f27-4e3a-89fc-34f9e7984335.json and https://artists.proofprofile.net/proofs/artist/ef31ee00-4f27-4e3a-89fc-34f9e7984335.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
album: Shake It Girl
  type: MusicAlbum
  date published: 2020-08-14
album: Melody
  type: MusicAlbum
  date published: 2020-10-16
album: 6Am In Downtown
  type: MusicAlbum
  date published: 2020-11-13
album: D-Kity
  type: MusicAlbum
  date published: 2020-12-27
album: Sweet Dreams
  type: MusicAlbum
  date published: 2022-04-08
album: Sweet Dreams
  type: MusicAlbum
  date published: 2022-04-29
album: Every Single Time
  type: MusicAlbum
  date published: 2022-07-22
album: The Ceiling
  type: MusicAlbum
  date published: 2022-10-21
album: Blanc
  type: MusicAlbum
  date published: 2022-11-11
album: Noir
  type: MusicAlbum
  date published: 2022-12-02
album: Deep Indigo
  type: MusicAlbum
  date published: 2022-12-23
album: Deep Indigo (Remixes)
  type: MusicAlbum
  date published: 2023-02-24
album: Deep Indigo (Höhnflug Remix)
  type: MusicAlbum
  date published: 2023-03-25
album: Deep Indigo (Allan McLoud Remix)
  type: MusicAlbum
  date published: 2023-03-25
album: Derirwo
  type: MusicAlbum
  date published: 2024-09-06