Graff Meets Smidt
type: MusicGroup
popularity: 5
followers: 116
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x78b17a15149f4a27ebf987f865e3dd2fb423e9a6c6fffc63b9eb1fb4f8684a39
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ceae45b2-a520-4489-9d57-aa20e0f28ebc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ceae45b2-a520-4489-9d57-aa20e0f28ebc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ceae45b2-a520-4489-9d57-aa20e0f28ebc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x78b17a15149f4a27ebf987f865e3dd2fb423e9a6c6fffc63b9eb1fb4f8684a39","name":"Graff Meets Smidt","registered_at":"2026-06-21T00:33:29Z","symbol":"NIM1763852","token_address":"0x1baf3ef6100705fd3ae18d2c07a7b41615ced70d","type":"artist","uuid":"ceae45b2-a520-4489-9d57-aa20e0f28ebc"}
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 0x78b17a15149f4a27ebf987f865e3dd2fb423e9a6c6fffc63b9eb1fb4f8684a39. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ceae45b2-a520-4489-9d57-aa20e0f28ebc.json and https://artists.proofprofile.net/proofs/artist/ceae45b2-a520-4489-9d57-aa20e0f28ebc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x78b17a15149f4a27ebf987f865e3dd2fb423e9a6c6fffc63b9eb1fb4f8684a39","name":"Graff Meets Smidt","registered_at":"2026-06-21T00:33:29Z","symbol":"NIM1763852","token_address":"0x1baf3ef6100705fd3ae18d2c07a7b41615ced70d","type":"artist","uuid":"ceae45b2-a520-4489-9d57-aa20e0f28ebc"}
album: YARDMAN (Tell Him Come)
  type: MusicAlbum
  date published: 2023-08-03
album: State Of Mind
  type: MusicAlbum
  date published: 2023-11-09
album: M1 Meaning
  type: MusicAlbum
  date published: 2024-01-26
album: Just a Waste of Time
  type: MusicAlbum
  date published: 2024-08-09
album: Too Late for Disco
  type: MusicAlbum
  date published: 2025-02-28
  track: Too Late for Disco
    type: MusicRecording
    duration: PT4M20S
    duration ms: 260625
    explicit: false
    by artist: Graff Meets Smidt
    in album: Too Late for Disco
      type: MusicAlbum
      date published: 2025-02-28
    isrc code: GX3Q92525873
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T05:51:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe34dc4b4380562ee4b05f7be94a6ff448a2a1795da939a239eb9979a4458e185
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956790
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956790
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX3Q92525873
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T12:31:54Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34dc4b4380562ee4b05f7be94a6ff448a2a1795da939a239eb9979a4458e185. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GX3Q92525873.
      date published: 2026-07-05T12:31:54Z
    audio: Too Late for Disco
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.998
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.68
      additional property: Energy
        type: PropertyValue
        value: 0.807
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.088
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.02
      additional property: Liveness
        type: PropertyValue
        value: 0.084
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.648
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.108
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor