Polar M
type: MusicGroup
genre: neoclassical
popularity: 19
followers: 936
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x04a4d93febfe705a55543e4bf01aae110f15a425189b27a908d6bfc130e062a6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/45887e5f-c443-4868-91fe-4f0ad093cf83.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/45887e5f-c443-4868-91fe-4f0ad093cf83.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/45887e5f-c443-4868-91fe-4f0ad093cf83
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x04a4d93febfe705a55543e4bf01aae110f15a425189b27a908d6bfc130e062a6","name":"Polar M","registered_at":"2026-06-14T11:42:23Z","symbol":"NIM0442021","token_address":"0xb0e6398cbcceb3a3439ed5fa9883466b16a8a22b","type":"artist","uuid":"45887e5f-c443-4868-91fe-4f0ad093cf83"}
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 0x04a4d93febfe705a55543e4bf01aae110f15a425189b27a908d6bfc130e062a6. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45887e5f-c443-4868-91fe-4f0ad093cf83.json and https://artists.proofprofile.net/proofs/artist/45887e5f-c443-4868-91fe-4f0ad093cf83.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x04a4d93febfe705a55543e4bf01aae110f15a425189b27a908d6bfc130e062a6","name":"Polar M","registered_at":"2026-06-14T11:42:23Z","symbol":"NIM0442021","token_address":"0xb0e6398cbcceb3a3439ed5fa9883466b16a8a22b","type":"artist","uuid":"45887e5f-c443-4868-91fe-4f0ad093cf83"}
album: Northern Birds
  type: MusicAlbum
  date published: 2011-10-05
album: Northern Birds
  type: MusicAlbum
  date published: 2011-10-05
album: Northern Birds
  type: MusicAlbum
  date published: 2011-11-04
album: Hope Goes On
  type: MusicAlbum
  date published: 2014-11-22
album: Hope Goes On
  type: MusicAlbum
  date published: 2014-11-23
  track: Snow Calls Silence
    type: MusicRecording
    duration: PT5M4S
    duration ms: 304720
    explicit: false
    by artist: Polar M
    in album: Hope Goes On
      type: MusicAlbum
      date published: 2014-11-23
    genre: neoclassical
    isrc code: JPB671402293
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T20:43:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf7a2654343d300ef4f2ffcb967c532db9c53f6a2c64049fac6a43b01f0a7a7ee
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956405
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956405
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB671402293
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T22:22:35Z
    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 0xf7a2654343d300ef4f2ffcb967c532db9c53f6a2c64049fac6a43b01f0a7a7ee. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/JPB671402293.
      date published: 2026-07-02T22:22:35Z
    audio: Snow Calls Silence
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.408
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.45
      additional property: Energy
        type: PropertyValue
        value: 0.096
      additional property: Speechiness
        type: PropertyValue
        value: 0.06
      additional property: Acousticness
        type: PropertyValue
        value: 0.954
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.926
      additional property: Liveness
        type: PropertyValue
        value: 0.149
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.183
      additional property: Loudness (dB)
        type: PropertyValue
        value: -18.694
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Music For Northern Landscape
  type: MusicAlbum
  date published: 2024-01-26
album: Music For Northern Landscape
  type: MusicAlbum
  date published: 2024-01-26