ColdCell
type: MusicGroup
genre: black metal
description: ColdCell is a Swiss black metal band. They have released five albums, becoming mostly known for Those (2017) on the Czar of Crickets label and the fifth album Age of Unreason (2024) on . Discography
popularity: 8
followers: 2470
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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 0xfd565ab990110e74bf235fbfe20eca686fe3551cd2432fc58137a9acc73c3eba. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a95213b2-443d-47a5-a172-9ae6141c74a3.json and https://artists.proofprofile.net/proofs/artist/a95213b2-443d-47a5-a172-9ae6141c74a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
album: Generation Abomination
  type: MusicAlbum
  date published: 2013-10-25
album: Generation Abomination
  type: MusicAlbum
  date published: 2013-10-25
album: Lowlife
  type: MusicAlbum
  date published: 2015-06-24
album: Those
  type: MusicAlbum
  date published: 2017-11-03
album: No Escape
  type: MusicAlbum
  date published: 2021-02-19
album: Open Wound
  type: MusicAlbum
  date published: 2021-03-19
album: The Greater Evil
  type: MusicAlbum
  date published: 2021-04-23
album: Dead to the World
  type: MusicAlbum
  date published: 2024-05-16
album: Hope and Failure
  type: MusicAlbum
  date published: 2024-06-13
album: Meaningless
  type: MusicAlbum
  date published: 2024-07-10
album: Meaningless
  type: MusicAlbum
  date published: 2024-07-10
album: Age of Unreason
  type: MusicAlbum
  date published: 2024-07-26
  track: Hope and Failure
    type: MusicRecording
    duration: PT7M32S
    duration ms: 452088
    explicit: false
    by artist: ColdCell
    in album: Age of Unreason
      type: MusicAlbum
      date published: 2024-07-26
    genre: black metal
    isrc code: DEPI82404238
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    additional property: OTSTimestamp
      type: PropertyValue
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    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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed424be1fae68cc7a05234e5293a5df466edf3598d3d0bd9ba8b0b34676cd746. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/DEPI82404238.
      date published: 2026-07-19T06:43:29Z
    audio: Hope and Failure
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 115.021
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
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        value: 0.409
      additional property: Energy
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      additional property: Speechiness
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        value: 0.079
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.663
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.094
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.379
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major