Cassette Deck
type: MusicGroup
description: thumb|A typical late 1980s component deck with Dolby B, C and HXPro (Sony TC-RX55) A cassette deck is a type of tape machine for playing and recording audio cassettes that does not have a built-in po
popularity: 7
followers: 590
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3bee534190a0346c5720372704bd019e977f93b0bdf1a9fb62655e1a6467066e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d2377504-a2c2-4210-816c-2c58f0e538f5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d2377504-a2c2-4210-816c-2c58f0e538f5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d2377504-a2c2-4210-816c-2c58f0e538f5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3bee534190a0346c5720372704bd019e977f93b0bdf1a9fb62655e1a6467066e","name":"Cassette Deck","registered_at":"2026-06-21T01:46:49Z","symbol":"NIM1781310","token_address":"0x5e86ab8cc43b5dbc63b58a87dcb72f3b3b759c17","type":"artist","uuid":"d2377504-a2c2-4210-816c-2c58f0e538f5"}
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 0x3bee534190a0346c5720372704bd019e977f93b0bdf1a9fb62655e1a6467066e. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2377504-a2c2-4210-816c-2c58f0e538f5.json and https://artists.proofprofile.net/proofs/artist/d2377504-a2c2-4210-816c-2c58f0e538f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x3bee534190a0346c5720372704bd019e977f93b0bdf1a9fb62655e1a6467066e","name":"Cassette Deck","registered_at":"2026-06-21T01:46:49Z","symbol":"NIM1781310","token_address":"0x5e86ab8cc43b5dbc63b58a87dcb72f3b3b759c17","type":"artist","uuid":"d2377504-a2c2-4210-816c-2c58f0e538f5"}
album: This Is Our Time
  type: MusicAlbum
  date published: 2020-01-17
  track: This Is Our Time
    type: MusicRecording
    duration: PT2M59S
    duration ms: 179585
    explicit: false
    by artist: Cassette Deck
    in album: This Is Our Time
      type: MusicAlbum
      date published: 2020-01-17
    isrc code: US43C1613414
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T23:07:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x52b08f57ad72ad7d5fe6c8c4fe5d6f139f2b9c8a727ae212123c25921a5533bd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958079
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958079
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US43C1613414
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T00:21:05Z
    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 0x52b08f57ad72ad7d5fe6c8c4fe5d6f139f2b9c8a727ae212123c25921a5533bd. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/US43C1613414.
      date published: 2026-07-15T00:21:05Z
    audio: This Is Our Time
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.001
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.744
      additional property: Energy
        type: PropertyValue
        value: 0.779
      additional property: Speechiness
        type: PropertyValue
        value: 0.026
      additional property: Acousticness
        type: PropertyValue
        value: 0.124
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.121
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.745
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.006
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: This Is Our Time
  type: MusicAlbum
  date published: 2020-01-17
album: This Is Our Time
  type: MusicAlbum
  date published: 2020-01-17
album: Perfect Holiday
  type: MusicAlbum
  date published: 2020-07-28
album: Perfect Holiday
  type: MusicAlbum
  date published: 2020-07-28
album: Perfect Holiday
  type: MusicAlbum
  date published: 2020-07-28
album: Stuck in a Blizzard with You
  type: MusicAlbum
  date published: 2023-09-20