Arctic
type: MusicGroup
genre: doom metal
genre: sludge metal
genre: space rock
genre: stoner rock
description: The Arctic (; . ) is the polar region of Earth that surrounds the North Pole, lying north of the Arctic Circle. The Arctic region, from the IERS Reference Meridian travelling east, consists of parts o
popularity: 7
followers: 2860
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additional property: CopyrightChainExplorerURL
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additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd0885befd61e937b14236fe10c5f3c33724e8ae495a0fedadf5b407eb994e9. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/994aca10-6c45-4bfc-bc73-1a14e94935c8.json and https://artists.proofprofile.net/proofs/artist/994aca10-6c45-4bfc-bc73-1a14e94935c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
album: Arctic
  type: MusicAlbum
  date published: 2016-06-24
album: Arctic
  type: MusicAlbum
  date published: 2016-06-24
album: Arctic
  type: MusicAlbum
  date published: 2016-06-24
  track: Over Smoked
    type: MusicRecording
    duration: PT8M36S
    duration ms: 516786
    explicit: false
    by artist: Arctic
    in album: Arctic
      type: MusicAlbum
      date published: 2016-06-24
    genre: doom metal
    genre: sludge metal
    genre: space rock
    genre: stoner rock
    isrc code: QMFME1535665
    additional property: CopyrightID
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0xb59a4edb1add16ac7f4cab89f3ac8d40a8b21f5965c43c2b359841c228aff36a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QMFME1535665.
      date published: 2026-07-03T21:18:05Z
    audio: Over Smoked
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.871
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.173
      additional property: Energy
        type: PropertyValue
        value: 0.885
      additional property: Speechiness
        type: PropertyValue
        value: 0.055
      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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      additional property: Key Name
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      additional property: Mode Name
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  track: Cryptic Black Sun
    type: MusicRecording
    duration: PT4M7S
    duration ms: 247253
    explicit: false
    by artist: Arctic
    in album: Arctic
      type: MusicAlbum
      date published: 2016-06-24
    genre: doom metal
    genre: sludge metal
    genre: space rock
    genre: stoner rock
    isrc code: QMFME1535666
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    additional property: CopyrightStatus
      type: PropertyValue
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    additional property: OTSBitcoinBlock
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T03:03:40Z
    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 0x4be94e4553d763a101c74f2d325d8d9ade8efdb5cc655dd6379399dd96d101e7. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QMFME1535666.
      date published: 2026-07-21T03:03:40Z
    audio: Cryptic Black Sun
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Mode (Major/Minor)
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      additional property: Time Signature
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      additional property: Energy
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      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Speechiness
type: PropertyValue
value: 0.04

Acousticness
type: PropertyValue
value: 0

Instrumentalness
type: PropertyValue
value: 0.834

Liveness
type: PropertyValue
value: 0.18

Valence (Positivity)
type: PropertyValue
value: 0.471

Loudness (dB)
type: PropertyValue
value: -6.268

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major