EL Matzn
type: MusicGroup
popularity: 3
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x548a6e086340ab61d9a7cb4f9c365fadd5ad6391e021ab27755b48033972f097
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5f21adae-94bc-4fb0-a774-15d012d1ad9f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5f21adae-94bc-4fb0-a774-15d012d1ad9f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5f21adae-94bc-4fb0-a774-15d012d1ad9f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x548a6e086340ab61d9a7cb4f9c365fadd5ad6391e021ab27755b48033972f097","name":"EL Matzn","registered_at":"2026-06-16T22:46:09Z","symbol":"NIM1199446","token_address":"0xa44785cf583989d11b42ed6bfdc090372d4295f4","type":"artist","uuid":"5f21adae-94bc-4fb0-a774-15d012d1ad9f"}
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 0x548a6e086340ab61d9a7cb4f9c365fadd5ad6391e021ab27755b48033972f097. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f21adae-94bc-4fb0-a774-15d012d1ad9f.json and https://artists.proofprofile.net/proofs/artist/5f21adae-94bc-4fb0-a774-15d012d1ad9f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x548a6e086340ab61d9a7cb4f9c365fadd5ad6391e021ab27755b48033972f097","name":"EL Matzn","registered_at":"2026-06-16T22:46:09Z","symbol":"NIM1199446","token_address":"0xa44785cf583989d11b42ed6bfdc090372d4295f4","type":"artist","uuid":"5f21adae-94bc-4fb0-a774-15d012d1ad9f"}
album: Renn
  type: MusicAlbum
  date published: 2025-08-13
  track: Renn
    type: MusicRecording
    duration: PT2M58S
    duration ms: 178708
    explicit: true
    by artist: EL Matzn
    in album: Renn
      type: MusicAlbum
      date published: 2025-08-13
    isrc code: TCAJX2564279
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T07:27:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0d498e12ca66ca5ed6590b38b8ea6e3cd5a56ba33b0ac1e86848df6dead16fd6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958842
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958842
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJX2564279
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T10:30:42Z
    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 0x0d498e12ca66ca5ed6590b38b8ea6e3cd5a56ba33b0ac1e86848df6dead16fd6. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:30:42Z), 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/TCAJX2564279.
      date published: 2026-07-20T10:30:42Z
    audio: Renn
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 155.982
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.665
      additional property: Energy
        type: PropertyValue
        value: 0.591
      additional property: Speechiness
        type: PropertyValue
        value: 0.264
      additional property: Acousticness
        type: PropertyValue
        value: 0.183
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.07
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.475
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Goldi-Romanze
  type: MusicAlbum
  date published: 2025-09-24
album: Mein Film
  type: MusicAlbum
  date published: 2025-10-30