Chem Sin
type: MusicGroup
popularity: 4
followers: 39
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6b5b5a911997e0de3ea7620b85c9d2f9f59233b4919debb1793726a1239794b8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/86469342-a692-4c55-953c-17ea6e4896cb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/86469342-a692-4c55-953c-17ea6e4896cb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/86469342-a692-4c55-953c-17ea6e4896cb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6b5b5a911997e0de3ea7620b85c9d2f9f59233b4919debb1793726a1239794b8","name":"Chem Sin","registered_at":"2026-06-17T12:29:03Z","symbol":"NIM1395719","token_address":"0x3dd024305f92e25101e1d1c0054e6fa719272b4c","type":"artist","uuid":"86469342-a692-4c55-953c-17ea6e4896cb"}
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 0x6b5b5a911997e0de3ea7620b85c9d2f9f59233b4919debb1793726a1239794b8. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/86469342-a692-4c55-953c-17ea6e4896cb.json and https://artists.proofprofile.net/proofs/artist/86469342-a692-4c55-953c-17ea6e4896cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x6b5b5a911997e0de3ea7620b85c9d2f9f59233b4919debb1793726a1239794b8","name":"Chem Sin","registered_at":"2026-06-17T12:29:03Z","symbol":"NIM1395719","token_address":"0x3dd024305f92e25101e1d1c0054e6fa719272b4c","type":"artist","uuid":"86469342-a692-4c55-953c-17ea6e4896cb"}
album: Ok-ok
  type: MusicAlbum
  date published: 2023-11-24
album: This Life
  type: MusicAlbum
  date published: 2024-03-04
album: RadSHit
  type: MusicAlbum
  date published: 2024-05-04
album: Party Rock
  type: MusicAlbum
  date published: 2024-07-13
album: Jaccuzi
  type: MusicAlbum
  date published: 2024-08-09
album: Hueman
  type: MusicAlbum
  date published: 2024-09-27
album: Rad Boi
  type: MusicAlbum
  date published: 2024-11-21
album: PLL
  type: MusicAlbum
  date published: 2025-01-01
album: Y wud I Kry
  type: MusicAlbum
  date published: 2025-03-07
  track: Y wud I Kry
    type: MusicRecording
    duration: PT2M15S
    duration ms: 135278
    explicit: true
    by artist: Chem Sin
    in album: Y wud I Kry
      type: MusicAlbum
      date published: 2025-03-07
    isrc code: QZHNA2541408
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T23:45:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x17f9243cbcb83523f03e9abc8e0cad7aa067900803a468c513f785149d615b04
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958945
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958945
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNA2541408
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T00:35:28Z
    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 0x17f9243cbcb83523f03e9abc8e0cad7aa067900803a468c513f785149d615b04. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/QZHNA2541408.
      date published: 2026-07-21T00:35:28Z
    audio: Y wud I Kry
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 155.961
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.374
      additional property: Energy
        type: PropertyValue
        value: 0.762
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.148
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.155
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.116
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.959
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: MEHC
  type: MusicAlbum
  date published: 2025-04-10
album: Luh Uzi
  type: MusicAlbum
  date published: 2025-05-02
album: LYF
  type: MusicAlbum
  date published: 2025-07-11