Penny Black
type: MusicGroup
description: The Penny Black was the world's first adhesive postage stamp used in a public postal system. It was first issued in the United Kingdom on 1 May 1840 but was not valid for use until 6 May. The stamp fe
popularity: 15
followers: 98
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb53fe1ef5b2bc5d9c05815db0310a64cd13693ec950582404d03e3a1db8e19d8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953620
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953620
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1ff85e02-9d14-498d-98c7-d05213598f56.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1ff85e02-9d14-498d-98c7-d05213598f56.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1ff85e02-9d14-498d-98c7-d05213598f56
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T09:36:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb53fe1ef5b2bc5d9c05815db0310a64cd13693ec950582404d03e3a1db8e19d8","name":"Penny Black","registered_at":"2026-06-14T07:51:45Z","symbol":"NIM0387025","token_address":"0x8a957661b3400dcae095ace8cf08fb1f0acb40eb","type":"artist","uuid":"1ff85e02-9d14-498d-98c7-d05213598f56"}
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 0xb53fe1ef5b2bc5d9c05815db0310a64cd13693ec950582404d03e3a1db8e19d8. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ff85e02-9d14-498d-98c7-d05213598f56.json and https://artists.proofprofile.net/proofs/artist/1ff85e02-9d14-498d-98c7-d05213598f56.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T09:36:10Z
  text: {"copyright_id":"0xb53fe1ef5b2bc5d9c05815db0310a64cd13693ec950582404d03e3a1db8e19d8","name":"Penny Black","registered_at":"2026-06-14T07:51:45Z","symbol":"NIM0387025","token_address":"0x8a957661b3400dcae095ace8cf08fb1f0acb40eb","type":"artist","uuid":"1ff85e02-9d14-498d-98c7-d05213598f56"}
album: Wobble Out (feat. Kings)
  type: MusicAlbum
  date published: 2024-08-02
  track: Wobble Out (feat. Kings)
    type: MusicRecording
    duration: PT3M0S
    duration ms: 180978
    explicit: true
    by artist: Penny Black
    in album: Wobble Out (feat. Kings)
      type: MusicAlbum
      date published: 2024-08-02
    isrc code: NZSG02400014
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-20T19:57:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x615ac5fc40ad0d080c176e982510ebe882d722dbad0473407e021bb620cf29af
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956302
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956302
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NZSG02400014
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T03:30:09Z
    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 0x615ac5fc40ad0d080c176e982510ebe882d722dbad0473407e021bb620cf29af. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NZSG02400014.
      date published: 2026-07-02T03:30:09Z
    audio: Wobble Out (feat. Kings)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 112.527
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.693
      additional property: Energy
        type: PropertyValue
        value: 0.769
      additional property: Speechiness
        type: PropertyValue
        value: 0.254
      additional property: Acousticness
        type: PropertyValue
        value: 0.3
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.631
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.729
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Rubber Arm
  type: MusicAlbum
  date published: 2024-11-15