Dan Koh
type: MusicGroup
description: redirect Daniel Koh
popularity: 2
followers: 232
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4be94f33e47ffe96756c41c921a6ba7fc20dadafaf30edcf0713b7c69d1b9663
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e935ac17-2eed-4195-bbd8-10dfb905644f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e935ac17-2eed-4195-bbd8-10dfb905644f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e935ac17-2eed-4195-bbd8-10dfb905644f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4be94f33e47ffe96756c41c921a6ba7fc20dadafaf30edcf0713b7c69d1b9663","name":"Dan Koh","registered_at":"2026-06-21T09:46:09Z","symbol":"NIM1892201","token_address":"0x2018c99008cfb6dad858729df830c065b4bd9392","type":"artist","uuid":"e935ac17-2eed-4195-bbd8-10dfb905644f"}
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 0x4be94f33e47ffe96756c41c921a6ba7fc20dadafaf30edcf0713b7c69d1b9663. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e935ac17-2eed-4195-bbd8-10dfb905644f.json and https://artists.proofprofile.net/proofs/artist/e935ac17-2eed-4195-bbd8-10dfb905644f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x4be94f33e47ffe96756c41c921a6ba7fc20dadafaf30edcf0713b7c69d1b9663","name":"Dan Koh","registered_at":"2026-06-21T09:46:09Z","symbol":"NIM1892201","token_address":"0x2018c99008cfb6dad858729df830c065b4bd9392","type":"artist","uuid":"e935ac17-2eed-4195-bbd8-10dfb905644f"}
album: Dharma Escaparate
  type: MusicAlbum
  date published: 2013-09-15
  track: Tatuajes - Cover
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206813
    explicit: false
    by artist: Dan Koh
    in album: Dharma Escaparate
      type: MusicAlbum
      date published: 2013-09-15
    isrc code: QZ5AB2189532
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T08:35:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xba3f97ad06959529848caebe657f11836ae1861a298f0423e1d83b2b05699f16
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958987
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958987
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2189532
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T09:04:56Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xba3f97ad06959529848caebe657f11836ae1861a298f0423e1d83b2b05699f16. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2189532.
      date published: 2026-07-21T09:04:56Z
    audio: Tatuajes - Cover
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.024
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.54
      additional property: Energy
        type: PropertyValue
        value: 0.59
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.585
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.305
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.244
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: D' un Hilo
  type: MusicAlbum
  date published: 2021-05-01
album: Sirena
  type: MusicAlbum
  date published: 2021-11-19
album: Casino
  type: MusicAlbum
  date published: 2022-09-23
album: Perhaps, Perhaps, Perhaps (Cover)
  type: MusicAlbum
  date published: 2023-02-03