ULTRA RARE OPERATING SYSTEM
type: MusicGroup
popularity: 5
followers: 391
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc44260262ef11916660b3ce6e38023bbe31da29566bd34daacdb3b5c98eb9cf3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6bf630ed-c730-4ff0-af03-9febc0429b95.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6bf630ed-c730-4ff0-af03-9febc0429b95.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6bf630ed-c730-4ff0-af03-9febc0429b95
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc44260262ef11916660b3ce6e38023bbe31da29566bd34daacdb3b5c98eb9cf3","name":"ULTRA RARE OPERATING SYSTEM","registered_at":"2026-06-17T03:19:55Z","symbol":"NIM1264762","token_address":"0xd5fe85e21b547dd910ff00dec5f340056010cc35","type":"artist","uuid":"6bf630ed-c730-4ff0-af03-9febc0429b95"}
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 0xc44260262ef11916660b3ce6e38023bbe31da29566bd34daacdb3b5c98eb9cf3. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6bf630ed-c730-4ff0-af03-9febc0429b95.json and https://artists.proofprofile.net/proofs/artist/6bf630ed-c730-4ff0-af03-9febc0429b95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc44260262ef11916660b3ce6e38023bbe31da29566bd34daacdb3b5c98eb9cf3","name":"ULTRA RARE OPERATING SYSTEM","registered_at":"2026-06-17T03:19:55Z","symbol":"NIM1264762","token_address":"0xd5fe85e21b547dd910ff00dec5f340056010cc35","type":"artist","uuid":"6bf630ed-c730-4ff0-af03-9febc0429b95"}
album: UROS_BEATDRIVE, Vol. 1
  type: MusicAlbum
  date published: 2018-07-15
album: Sometimes I hear Howlin' in my head (NAVI Edit)
  type: MusicAlbum
  date published: 2019-09-12
  track: Sometimes I hear Howlin' in my head - NAVI Edit
    type: MusicRecording
    duration: PT2M37S
    duration ms: 157161
    explicit: false
    by artist: ULTRA RARE OPERATING SYSTEM
    in album: Sometimes I hear Howlin' in my head (NAVI Edit)
      type: MusicAlbum
      date published: 2019-09-12
    isrc code: USLZJ1983920
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T11:04:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xee2257247754ffd62d7c593794c2893c051eb8c65b0c062a79c975c63ce51e19
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958152
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958152
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLZJ1983920
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T14:03:36Z
    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 0xee2257247754ffd62d7c593794c2893c051eb8c65b0c062a79c975c63ce51e19. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:03:36Z), 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/USLZJ1983920.
      date published: 2026-07-15T14:03:36Z
    audio: Sometimes I hear Howlin' in my head - NAVI Edit
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 77.103
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.329
      additional property: Energy
        type: PropertyValue
        value: 0.682
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.135
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.847
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.286
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.971
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: These Nights (UROS REMIX)
  type: MusicAlbum
  date published: 2019-10-29
album: Walking (UROS REMIX)
  type: MusicAlbum
  date published: 2019-11-13
album: Get Your Wish (K. K. Slider Remix)
  type: MusicAlbum
  date published: 2020-03-11
album: Falling Leaves are Beautiful (Ultra Rare OS Remix)
  type: MusicAlbum
  date published: 2020-05-28