Jin Ma
type: MusicGroup
popularity: 5
followers: 266
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6825d83754c0385212451ba14de849010fd3425be1a8bb9564987ba38172eac0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5176838a-b0de-40d4-b53b-6a8d1a51df7e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5176838a-b0de-40d4-b53b-6a8d1a51df7e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5176838a-b0de-40d4-b53b-6a8d1a51df7e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6825d83754c0385212451ba14de849010fd3425be1a8bb9564987ba38172eac0","name":"Jin Ma","registered_at":"2026-06-16T18:04:02Z","symbol":"NIM1132129","token_address":"0x3286c534058dd1cde7ddafdeaa93bdbd408bb056","type":"artist","uuid":"5176838a-b0de-40d4-b53b-6a8d1a51df7e"}
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 0x6825d83754c0385212451ba14de849010fd3425be1a8bb9564987ba38172eac0. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5176838a-b0de-40d4-b53b-6a8d1a51df7e.json and https://artists.proofprofile.net/proofs/artist/5176838a-b0de-40d4-b53b-6a8d1a51df7e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x6825d83754c0385212451ba14de849010fd3425be1a8bb9564987ba38172eac0","name":"Jin Ma","registered_at":"2026-06-16T18:04:02Z","symbol":"NIM1132129","token_address":"0x3286c534058dd1cde7ddafdeaa93bdbd408bb056","type":"artist","uuid":"5176838a-b0de-40d4-b53b-6a8d1a51df7e"}
album: Piano Night
  type: MusicAlbum
  date published: 2022-11-20
album: The fallen leaves
  type: MusicAlbum
  date published: 2022-12-23
album: childhood sunshine
  type: MusicAlbum
  date published: 2023-01-06
album: The town I grew up in
  type: MusicAlbum
  date published: 2023-02-10
album: Bamboo forest breeze
  type: MusicAlbum
  date published: 2023-03-03
album: Heartbroken
  type: MusicAlbum
  date published: 2023-03-24
album: Ethereal Nebula
  type: MusicAlbum
  date published: 2023-04-06
album: Your long kiss
  type: MusicAlbum
  date published: 2023-05-11
album: Ink Fragrance
  type: MusicAlbum
  date published: 2023-06-09
  track: Ink Fragrance
    type: MusicRecording
    duration: PT2M25S
    duration ms: 145688
    explicit: false
    by artist: Jin Ma
    in album: Ink Fragrance
      type: MusicAlbum
      date published: 2023-06-09
    isrc code: QZK6L2342059
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T00:06:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x58ef6a470d3297478d029d3d79cf60d6524581730ca427cebe370082861956e5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958943
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958943
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6L2342059
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T00:27:37Z
    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 0x58ef6a470d3297478d029d3d79cf60d6524581730ca427cebe370082861956e5. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZK6L2342059.
      date published: 2026-07-21T00:27:37Z
    audio: Ink Fragrance
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 70.215
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.417
      additional property: Energy
        type: PropertyValue
        value: 0.019
      additional property: Speechiness
        type: PropertyValue
        value: 0.079
      additional property: Acousticness
        type: PropertyValue
        value: 0.992
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.969
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.397
      additional property: Loudness (dB)
        type: PropertyValue
        value: -23.473
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Lonely Sad
  type: MusicAlbum
  date published: 2023-07-07
album: Bamboo Forest Breeze (Felt Piano)
  type: MusicAlbum
  date published: 2023-08-11
album: 安睡合唱曲 - Tranquil Slumber Chorus
  type: MusicAlbum
  date published: 2023-09-08
album: Love from the East
  type: MusicAlbum
  date published: 2023-10-06
album: Dreamscape
  type: MusicAlbum
  date published: 2023-12-08
album: 也许会不一样
  type: MusicAlbum
  date published: 2024-03-22
album: Symphony of Tragedy
  type: MusicAlbum
  date published: 2024-06-28