Polar Dear
type: MusicGroup
popularity: 3
followers: 72
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xab160357b2cb53be4b396766f27cb9d8624ca57ae3b0847a60111e57a735eee2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954139
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954139
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7ec2dd48-b7ea-40f6-b126-a4f74335521a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7ec2dd48-b7ea-40f6-b126-a4f74335521a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7ec2dd48-b7ea-40f6-b126-a4f74335521a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T21:12:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xab160357b2cb53be4b396766f27cb9d8624ca57ae3b0847a60111e57a735eee2","name":"Polar Dear","registered_at":"2026-06-17T10:11:56Z","symbol":"NIM1363035","token_address":"0xd281d7ab9c5e5d8f3306cf7a9b5c1e996d59e356","type":"artist","uuid":"7ec2dd48-b7ea-40f6-b126-a4f74335521a"}
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 0xab160357b2cb53be4b396766f27cb9d8624ca57ae3b0847a60111e57a735eee2. Chain 2 (Bitcoin): anchored in block 954139 (2026-06-17T21:12:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ec2dd48-b7ea-40f6-b126-a4f74335521a.json and https://artists.proofprofile.net/proofs/artist/7ec2dd48-b7ea-40f6-b126-a4f74335521a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T21:12:18Z
  text: {"copyright_id":"0xab160357b2cb53be4b396766f27cb9d8624ca57ae3b0847a60111e57a735eee2","name":"Polar Dear","registered_at":"2026-06-17T10:11:56Z","symbol":"NIM1363035","token_address":"0xd281d7ab9c5e5d8f3306cf7a9b5c1e996d59e356","type":"artist","uuid":"7ec2dd48-b7ea-40f6-b126-a4f74335521a"}
album: Even If I'm Late
  type: MusicAlbum
  date published: 2011-08-28
  track: Even If I'm Late
    type: MusicRecording
    duration: PT3M18S
    duration ms: 198750
    explicit: false
    by artist: Polar Dear
    in album: Even If I'm Late
      type: MusicAlbum
      date published: 2011-08-28
    isrc code: QZFZ22298426
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T17:43:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0b80ea2fba91c0ae7bb634ff0b9d055586196508f87e258f940f9c86ca8c86d7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958761
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958761
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ22298426
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T20:45:39Z
    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 0x0b80ea2fba91c0ae7bb634ff0b9d055586196508f87e258f940f9c86ca8c86d7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:45:39Z), 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/QZFZ22298426.
      date published: 2026-07-19T20:45:39Z
    audio: Even If I'm Late
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.032
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.546
      additional property: Energy
        type: PropertyValue
        value: 0.673
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.049
      additional property: Liveness
        type: PropertyValue
        value: 0.117
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.315
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.594
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Out Of Sight
  type: MusicAlbum
  date published: 2012-04-01
album: Thanatos
  type: MusicAlbum
  date published: 2012-05-05
album: Overseas
  type: MusicAlbum
  date published: 2012-07-16
album: Wish Me Luck
  type: MusicAlbum
  date published: 2013-01-17
album: My Cover Is Blown
  type: MusicAlbum
  date published: 2013-05-20
album: I've Got You
  type: MusicAlbum
  date published: 2013-12-20
album: Since I Know You
  type: MusicAlbum
  date published: 2015-02-03
album: Heated By The Cold
  type: MusicAlbum
  date published: 2016-12-08