Polar Circles
type: MusicGroup
description: Redirect Polar circle
popularity: 7
followers: 990
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcdee4288159b36aea31c202264295df97205f5e2d92b729d43472da159a23ca8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9272f7a-0c91-48d7-a399-59d0a8a97122.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9272f7a-0c91-48d7-a399-59d0a8a97122.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b9272f7a-0c91-48d7-a399-59d0a8a97122
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcdee4288159b36aea31c202264295df97205f5e2d92b729d43472da159a23ca8","name":"Polar Circles","registered_at":"2026-06-20T16:25:23Z","symbol":"NIM1652442","token_address":"0x138183c3bdf4ae6e76d32710e182aa210b746f28","type":"artist","uuid":"b9272f7a-0c91-48d7-a399-59d0a8a97122"}
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 0xcdee4288159b36aea31c202264295df97205f5e2d92b729d43472da159a23ca8. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9272f7a-0c91-48d7-a399-59d0a8a97122.json and https://artists.proofprofile.net/proofs/artist/b9272f7a-0c91-48d7-a399-59d0a8a97122.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0xcdee4288159b36aea31c202264295df97205f5e2d92b729d43472da159a23ca8","name":"Polar Circles","registered_at":"2026-06-20T16:25:23Z","symbol":"NIM1652442","token_address":"0x138183c3bdf4ae6e76d32710e182aa210b746f28","type":"artist","uuid":"b9272f7a-0c91-48d7-a399-59d0a8a97122"}
album: Left Behind
  type: MusicAlbum
  date published: 2013-07-19
album: Polar Circles
  type: MusicAlbum
  date published: 2014
  track: Part Of Us
    type: MusicRecording
    duration: PT3M1S
    duration ms: 181213
    explicit: false
    by artist: Polar Circles
    in album: Polar Circles
      type: MusicAlbum
      date published: 2014
    isrc code: CHA011400074
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T12:18:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd9551a84138c3b063413d92346265ac402ade238d9fe8a99c1f77b7245ac09ec
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958157
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958157
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CHA011400074
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T13:14:32Z
    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 0xd9551a84138c3b063413d92346265ac402ade238d9fe8a99c1f77b7245ac09ec. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/CHA011400074.
      date published: 2026-07-15T13:14:32Z
    audio: Part Of Us
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 116.019
      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: 0.631
      additional property: Energy
        type: PropertyValue
        value: 0.578
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.15
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.378
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.229
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.578
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Landmarks
  type: MusicAlbum
  date published: 2014-04-16
album: Polar Circles
  type: MusicAlbum
  date published: 2014-10-03
album: Falling Tonight
  type: MusicAlbum
  date published: 2017-08-25
album: Go It Alone
  type: MusicAlbum
  date published: 2017-10-27
album: All in the Golden Afternoon
  type: MusicAlbum
  date published: 2017-11-24
album: Downhill Trail (Radio Edit)
  type: MusicAlbum
  date published: 2018-02-16
album: The Messenger
  type: MusicAlbum
  date published: 2019-11-29
album: Devil's Hold
  type: MusicAlbum
  date published: 2020-01-17
album: Story's End
  type: MusicAlbum
  date published: 2020-03-20
album: Echoes & Times
  type: MusicAlbum
  date published: 2023-05-22
album: Cold Stars
  type: MusicAlbum
  date published: 2023-08-18
album: Echolalia
  type: MusicAlbum
  date published: 2023-10-13