Matt " Gonzo " Roehr
type: MusicGroup
popularity: 10
followers: 3899
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x810b98054b8c4f18446d5b16051d7a8c1809b2a9600b0ef5c48912dd7ffbeaae
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/4e5fd0dd-ce62-4ce6-9bef-0d778fb65fbb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4e5fd0dd-ce62-4ce6-9bef-0d778fb65fbb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4e5fd0dd-ce62-4ce6-9bef-0d778fb65fbb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x810b98054b8c4f18446d5b16051d7a8c1809b2a9600b0ef5c48912dd7ffbeaae","name":"Matt \" Gonzo \" Roehr","registered_at":"2026-06-16T16:57:38Z","symbol":"NIM1116279","token_address":"0xf705ca54d0961d8810e293d5a0adc4a719af7538","type":"artist","uuid":"4e5fd0dd-ce62-4ce6-9bef-0d778fb65fbb"}
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 0x810b98054b8c4f18446d5b16051d7a8c1809b2a9600b0ef5c48912dd7ffbeaae. 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/4e5fd0dd-ce62-4ce6-9bef-0d778fb65fbb.json and https://artists.proofprofile.net/proofs/artist/4e5fd0dd-ce62-4ce6-9bef-0d778fb65fbb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x810b98054b8c4f18446d5b16051d7a8c1809b2a9600b0ef5c48912dd7ffbeaae","name":"Matt \" Gonzo \" Roehr","registered_at":"2026-06-16T16:57:38Z","symbol":"NIM1116279","token_address":"0xf705ca54d0961d8810e293d5a0adc4a719af7538","type":"artist","uuid":"4e5fd0dd-ce62-4ce6-9bef-0d778fb65fbb"}
album: Barra da Tijuca
  type: MusicAlbum
  date published: 2007-10-26
album: UHAD2BTHERE!
  type: MusicAlbum
  date published: 2008-06-13
album: Out of the great Depression
  type: MusicAlbum
  date published: 2010-03-05
album: Blitz & Donner
  type: MusicAlbum
  date published: 2011-08-19
album: Alles ändert sich
  type: MusicAlbum
  date published: 2012-09-12
  track: Alles Ändert Sich
    type: MusicRecording
    duration: PT4M36S
    duration ms: 276466
    explicit: false
    by artist: Matt " Gonzo " Roehr
    in album: Alles ändert sich
      type: MusicAlbum
      date published: 2012-09-12
    isrc code: DEPU31704453
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T00:54:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8756642e9e201b1699a52751d0077d21783c411c241cb944877b35c8b3989ea5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPU31704453
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x8756642e9e201b1699a52751d0077d21783c411c241cb944877b35c8b3989ea5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEPU31704453.
      date published: 2026-07-04T10:04:33Z
    audio: Alles Ändert Sich
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.987
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.55
      additional property: Energy
        type: PropertyValue
        value: 0.828
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.027
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.287
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.269
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.64
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Zuflucht vor dem Sturm
  type: MusicAlbum
  date published: 2013-03-01
album: Jede bittere Träne
  type: MusicAlbum
  date published: 2021-08-20
album: Dead slow
  type: MusicAlbum
  date published: 2022-04-29