i from tk
type: MusicGroup
genre: j-rap
genre: j-r&b
popularity: 3
followers: 141
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xac87af1e4f3d68d2ee061fb11020b4ad73b70f570b9781c1accf6f1bbef6cd20
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954019
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954019
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37d3f322-0635-406a-9bcd-c5c51f09f0b0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37d3f322-0635-406a-9bcd-c5c51f09f0b0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/37d3f322-0635-406a-9bcd-c5c51f09f0b0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:44:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xac87af1e4f3d68d2ee061fb11020b4ad73b70f570b9781c1accf6f1bbef6cd20","name":"i from tk","registered_at":"2026-06-16T08:58:29Z","symbol":"NIM1001976","token_address":"0xe9374441d87fecdb76f176b619465c76c883a52d","type":"artist","uuid":"37d3f322-0635-406a-9bcd-c5c51f09f0b0"}
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 0xac87af1e4f3d68d2ee061fb11020b4ad73b70f570b9781c1accf6f1bbef6cd20. Chain 2 (Bitcoin): anchored in block 954019 (2026-06-16T23:44:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37d3f322-0635-406a-9bcd-c5c51f09f0b0.json and https://artists.proofprofile.net/proofs/artist/37d3f322-0635-406a-9bcd-c5c51f09f0b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:44:13Z
  text: {"copyright_id":"0xac87af1e4f3d68d2ee061fb11020b4ad73b70f570b9781c1accf6f1bbef6cd20","name":"i from tk","registered_at":"2026-06-16T08:58:29Z","symbol":"NIM1001976","token_address":"0xe9374441d87fecdb76f176b619465c76c883a52d","type":"artist","uuid":"37d3f322-0635-406a-9bcd-c5c51f09f0b0"}
album: puzzle
  type: MusicAlbum
  date published: 2023-04-28
album: puzzle
  type: MusicAlbum
  date published: 2023-04-28
album: fresh
  type: MusicAlbum
  date published: 2023-05-27
album: fresh
  type: MusicAlbum
  date published: 2023-05-27
album: OK
  type: MusicAlbum
  date published: 2023-07-01
album: OK
  type: MusicAlbum
  date published: 2023-07-01
album: walau
  type: MusicAlbum
  date published: 2023-12-24
album: green tea
  type: MusicAlbum
  date published: 2023-12-31
album: green tea
  type: MusicAlbum
  date published: 2023-12-31
album: how much deep is your love
  type: MusicAlbum
  date published: 2024-04-06
album: how much deep is your love
  type: MusicAlbum
  date published: 2024-04-06
album: drug dealer
  type: MusicAlbum
  date published: 2024-04-20
album: drug dealer
  type: MusicAlbum
  date published: 2024-04-20
album: u ou maisin (feat. GiantbaBy, Jeff Loik & sota nakamura)
  type: MusicAlbum
  date published: 2024-05-04
album: Osanpo
  type: MusicAlbum
  date published: 2024-06-15
album: Osanpo
  type: MusicAlbum
  date published: 2024-06-15
album: TRAFFIC JAM (feat. yayako)
  type: MusicAlbum
  date published: 2024-07-07
album: TRAFFIC JAM (feat. YAYA子)
  type: MusicAlbum
  date published: 2024-07-07
album: Stress
  type: MusicAlbum
  date published: 2024-08-10
album: Stress
  type: MusicAlbum
  date published: 2024-08-10
album: I'm from Tokyo
  type: MusicAlbum
  date published: 2024-10-25
album: I'm from Tokyo
  type: MusicAlbum
  date published: 2024-10-25
album: Yodale
  type: MusicAlbum
  date published: 2024-12-18
album: 涎
  type: MusicAlbum
  date published: 2024-12-18