Trollheim
type: MusicGroup
popularity: 4
followers: 370
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13fd9f289825eff8ef9f669fa313a7679f664ce05207e500ffb4d1bb994ce074
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f0dbbaaa-6265-49b4-87e4-b5fb3299660f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f0dbbaaa-6265-49b4-87e4-b5fb3299660f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f0dbbaaa-6265-49b4-87e4-b5fb3299660f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
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 0x13fd9f289825eff8ef9f669fa313a7679f664ce05207e500ffb4d1bb994ce074. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0dbbaaa-6265-49b4-87e4-b5fb3299660f.json and https://artists.proofprofile.net/proofs/artist/f0dbbaaa-6265-49b4-87e4-b5fb3299660f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
album: Iced Atlantis
  type: MusicAlbum
  date published: 2022-12-30
album: Cnut
  type: MusicAlbum
  date published: 2023-01-06
album: Kattegat
  type: MusicAlbum
  date published: 2023-02-10
album: Cargo
  type: MusicAlbum
  date published: 2023-03-10
album: Dark Funeral
  type: MusicAlbum
  date published: 2023-03-31
album: Trondheim
  type: MusicAlbum
  date published: 2023-06-16
album: Raiders
  type: MusicAlbum
  date published: 2023-06-30
album: Walhalla Calling
  type: MusicAlbum
  date published: 2023-07-21
album: Gates of Asgard
  type: MusicAlbum
  date published: 2023-08-11
album: Loki
  type: MusicAlbum
  date published: 2023-08-18
album: Wild Hunt's Echo
  type: MusicAlbum
  date published: 2023-09-01
album: Valhalla's Welcome
  type: MusicAlbum
  date published: 2023-12-29
album: Prophetess
  type: MusicAlbum
  date published: 2024-02-02
album: Ironclad Fury
  type: MusicAlbum
  date published: 2024-03-22
album: Slumber Song
  type: MusicAlbum
  date published: 2024-09-06
album: Celtic Spiritual
  type: MusicAlbum
  date published: 2024-09-20
  track: Celtic Spiritual
    type: MusicRecording
    duration: PT0M59S
    duration ms: 59839
    explicit: false
    by artist: Trollheim
    in album: Celtic Spiritual
      type: MusicAlbum
      date published: 2024-09-20
    isrc code: QZPJ32365065
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T00:09:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xed2287a4e81404a7daef108b7b791945cf2b44c41a12bf7f14eddb04e8010323
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958945
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958945
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32365065
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T00:35:28Z
    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 0xed2287a4e81404a7daef108b7b791945cf2b44c41a12bf7f14eddb04e8010323. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/QZPJ32365065.
      date published: 2026-07-21T00:35:28Z
    audio: Celtic Spiritual
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 132.499
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.164
      additional property: Energy
        type: PropertyValue
        value: 0.041
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.996
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.955
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.035
      additional property: Loudness (dB)
        type: PropertyValue
        value: -28.479
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Giant
  type: MusicAlbum
  date published: 2025-02-05