Mars Bear
type: MusicGroup
popularity: 3
followers: 48
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd4ae72cf8818a1a897e3d413de11c701bde103f42b1869338ac303f841104aca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f87ee1bd-0af4-4370-9997-41658d6d534f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f87ee1bd-0af4-4370-9997-41658d6d534f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f87ee1bd-0af4-4370-9997-41658d6d534f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd4ae72cf8818a1a897e3d413de11c701bde103f42b1869338ac303f841104aca","name":"Mars Bear","registered_at":"2026-06-21T15:52:23Z","symbol":"NIM1965189","token_address":"0x189f758a5bca7b84bc45ac93156243cff38114b6","type":"artist","uuid":"f87ee1bd-0af4-4370-9997-41658d6d534f"}
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 0xd4ae72cf8818a1a897e3d413de11c701bde103f42b1869338ac303f841104aca. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f87ee1bd-0af4-4370-9997-41658d6d534f.json and https://artists.proofprofile.net/proofs/artist/f87ee1bd-0af4-4370-9997-41658d6d534f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0xd4ae72cf8818a1a897e3d413de11c701bde103f42b1869338ac303f841104aca","name":"Mars Bear","registered_at":"2026-06-21T15:52:23Z","symbol":"NIM1965189","token_address":"0x189f758a5bca7b84bc45ac93156243cff38114b6","type":"artist","uuid":"f87ee1bd-0af4-4370-9997-41658d6d534f"}
album: Grey skies behind us
  type: MusicAlbum
  date published: 2024-07-04
album: Lost Between Oceans
  type: MusicAlbum
  date published: 2024-07-25
album: Ghost of Someone
  type: MusicAlbum
  date published: 2025-03-05
  track: Ghost of Someone
    type: MusicRecording
    duration: PT3M1S
    duration ms: 181174
    explicit: false
    by artist: Mars Bear
    in album: Ghost of Someone
      type: MusicAlbum
      date published: 2025-03-05
    isrc code: QZHN92564228
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T21:34:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x16c4094eed6c72b166ce3735c0a51a724f7cb05ac06a334096239feda709f575
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958461
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958461
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN92564228
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T23:18:11Z
    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 0x16c4094eed6c72b166ce3735c0a51a724f7cb05ac06a334096239feda709f575. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZHN92564228.
      date published: 2026-07-17T23:18:11Z
    audio: Ghost of Someone
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 71.435
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.112
      additional property: Energy
        type: PropertyValue
        value: 0.278
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.88
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.105
      additional property: Liveness
        type: PropertyValue
        value: 0.085
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.108
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.979
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor