Postcards From Venus
type: MusicGroup
popularity: 2
followers: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x787a9fe7a021b16d2d1f9617e8f5eb71fa9af73660acb296fc0a4ac44fc9a77e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c3c0913d-3707-4332-89ff-ee79916b1e69.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c3c0913d-3707-4332-89ff-ee79916b1e69.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c3c0913d-3707-4332-89ff-ee79916b1e69
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x787a9fe7a021b16d2d1f9617e8f5eb71fa9af73660acb296fc0a4ac44fc9a77e","name":"Postcards From Venus","registered_at":"2026-06-20T20:19:10Z","symbol":"NIM1704760","token_address":"0x2ed6f0c619adcf187a6032d7eeaf363fedddec8c","type":"artist","uuid":"c3c0913d-3707-4332-89ff-ee79916b1e69"}
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 0x787a9fe7a021b16d2d1f9617e8f5eb71fa9af73660acb296fc0a4ac44fc9a77e. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3c0913d-3707-4332-89ff-ee79916b1e69.json and https://artists.proofprofile.net/proofs/artist/c3c0913d-3707-4332-89ff-ee79916b1e69.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x787a9fe7a021b16d2d1f9617e8f5eb71fa9af73660acb296fc0a4ac44fc9a77e","name":"Postcards From Venus","registered_at":"2026-06-20T20:19:10Z","symbol":"NIM1704760","token_address":"0x2ed6f0c619adcf187a6032d7eeaf363fedddec8c","type":"artist","uuid":"c3c0913d-3707-4332-89ff-ee79916b1e69"}
album: Paper Skies
  type: MusicAlbum
  date published: 2025-09-19
  track: Paper Skies
    type: MusicRecording
    duration: PT3M40S
    duration ms: 220200
    explicit: false
    by artist: Postcards From Venus
    in album: Paper Skies
      type: MusicAlbum
      date published: 2025-09-19
    isrc code: USANG2519210
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T04:05:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0b19c59f9bdac0d148e8438fa8f368b8897c0c949cdda6108c3d6472f777f335
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2519210
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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 0x0b19c59f9bdac0d148e8438fa8f368b8897c0c949cdda6108c3d6472f777f335. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2519210 — a six-check JSON result.
      date published: 2026-07-06T06:56:49Z
    audio: Paper Skies
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.977
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.552
      additional property: Energy
        type: PropertyValue
        value: 0.464
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.161
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.701
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.385
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.248
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Satellites
  type: MusicAlbum
  date published: 2025-10-24