R. Kei
type: MusicGroup
genre: lo-fi
popularity: 26
followers: 133
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5f084645c89a1217aff5be7329b7a3485a4397a9c0d74137ae8e67fd0afb0bc1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e38ceae5-23c4-4461-a28b-3adf908c7118.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e38ceae5-23c4-4461-a28b-3adf908c7118.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e38ceae5-23c4-4461-a28b-3adf908c7118
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5f084645c89a1217aff5be7329b7a3485a4397a9c0d74137ae8e67fd0afb0bc1","name":"R. Kei","registered_at":"2026-06-12T12:09:18Z","symbol":"NIM0293481","token_address":"0xaf4ccc8b3165b3f62c81838bbaf60335d7faaa0a","type":"artist","uuid":"e38ceae5-23c4-4461-a28b-3adf908c7118"}
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 0x5f084645c89a1217aff5be7329b7a3485a4397a9c0d74137ae8e67fd0afb0bc1. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e38ceae5-23c4-4461-a28b-3adf908c7118.json and https://artists.proofprofile.net/proofs/artist/e38ceae5-23c4-4461-a28b-3adf908c7118.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x5f084645c89a1217aff5be7329b7a3485a4397a9c0d74137ae8e67fd0afb0bc1","name":"R. Kei","registered_at":"2026-06-12T12:09:18Z","symbol":"NIM0293481","token_address":"0xaf4ccc8b3165b3f62c81838bbaf60335d7faaa0a","type":"artist","uuid":"e38ceae5-23c4-4461-a28b-3adf908c7118"}
album: Bedroom Posters
  type: MusicAlbum
  date published: 2020-07-05
album: five more days
  type: MusicAlbum
  date published: 2024-03-28
album: 2 steps behind
  type: MusicAlbum
  date published: 2024-04-24
album: 1 step forward
  type: MusicAlbum
  date published: 2024-06-28