Florian Apfl
type: MusicGroup
popularity: 8
followers: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x89e37c658ab42c0debb04557dcac4a7a172f031062964d7d6bd611efe49eaa52
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954139
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954139
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7faca558-c5c8-45a7-91c2-1d8b3f68e87b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7faca558-c5c8-45a7-91c2-1d8b3f68e87b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7faca558-c5c8-45a7-91c2-1d8b3f68e87b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T21:12:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x89e37c658ab42c0debb04557dcac4a7a172f031062964d7d6bd611efe49eaa52","name":"Florian Apfl","registered_at":"2026-06-17T10:11:10Z","symbol":"NIM1362849","token_address":"0xf5d11ab2d942a2d94e71c19a7249057e626a6af0","type":"artist","uuid":"7faca558-c5c8-45a7-91c2-1d8b3f68e87b"}
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 0x89e37c658ab42c0debb04557dcac4a7a172f031062964d7d6bd611efe49eaa52. Chain 2 (Bitcoin): anchored in block 954139 (2026-06-17T21:12:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7faca558-c5c8-45a7-91c2-1d8b3f68e87b.json and https://artists.proofprofile.net/proofs/artist/7faca558-c5c8-45a7-91c2-1d8b3f68e87b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T21:12:18Z
  text: {"copyright_id":"0x89e37c658ab42c0debb04557dcac4a7a172f031062964d7d6bd611efe49eaa52","name":"Florian Apfl","registered_at":"2026-06-17T10:11:10Z","symbol":"NIM1362849","token_address":"0xf5d11ab2d942a2d94e71c19a7249057e626a6af0","type":"artist","uuid":"7faca558-c5c8-45a7-91c2-1d8b3f68e87b"}
track: Anna-Lena - Mountain Mix
  type: MusicRecording
  duration: PT2M59S
  duration ms: 179926
  explicit: false
  by artist: Honk!
  by artist: Deejay Matze
  by artist: Florian Apfl
  in album: Summerfield Records präsentiert: Mehr Bretter als ein Baumarkt, Vol. 2 (Hüttenalarm Edition)
    type: MusicAlbum
    date published: 2019-12-13
  isrc code: DEHM81900822
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-22T08:29:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd5efb2967933b054bfdffaab2673733e8723256d3a0889620a1aa37043a8a3a5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEHM81900822
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0xd5efb2967933b054bfdffaab2673733e8723256d3a0889620a1aa37043a8a3a5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEHM81900822.
    date published: 2026-07-02T03:55:08Z
  audio: Anna-Lena - Mountain Mix
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 143.805
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.711
    additional property: Energy
      type: PropertyValue
      value: 0.916
    additional property: Speechiness
      type: PropertyValue
      value: 0.097
    additional property: Acousticness
      type: PropertyValue
      value: 0.118
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.088
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.748
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.077
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major