Nekomachi
type: MusicGroup
genre: ambient
genre: dark ambient
popularity: 2
followers: 316
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc59660e31c17f74dbea3f85b1b4eb719dda0818627bbdfc6455e88e93447029e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/99d19c76-e246-490e-b12d-27541c009c15.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/99d19c76-e246-490e-b12d-27541c009c15.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/99d19c76-e246-490e-b12d-27541c009c15
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
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 0xc59660e31c17f74dbea3f85b1b4eb719dda0818627bbdfc6455e88e93447029e. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99d19c76-e246-490e-b12d-27541c009c15.json and https://artists.proofprofile.net/proofs/artist/99d19c76-e246-490e-b12d-27541c009c15.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
album: cat & town
  type: MusicAlbum
  date published: 2022-09-23
album: cat & town
  type: MusicAlbum
  date published: 2022-09-23
album: hall & foam
  type: MusicAlbum
  date published: 2022-12-30
album: Left Behind 201
  type: MusicAlbum
  date published: 2023-09-15
album: Tokyo Lazy Heart
  type: MusicAlbum
  date published: 2023-12-01
album: Focus is always something blurry
  type: MusicAlbum
  date published: 2024-08-06
album: Koko Doko
  type: MusicAlbum
  date published: 2024-08-27
album: Seeing Is
  type: MusicAlbum
  date published: 2025-10-03
album: Tang Sang Sen
  type: MusicAlbum
  date published: 2025-10-24
album: About The Same, Maybe Something
  type: MusicAlbum
  date published: 2025-11-14