Fenrir
type: MusicGroup
genre: drum and bass
description: thumb|300px|Fenrir and Naglfar on the Tullstorp Runestone. The inscription mentions the name Ulfr ("wolf"), and the name Kleppir/Glippir. The last name is not fully understood, but may have represente
popularity: 14
followers: 610
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3f815ebdc562058b92d41964b5a7fc5d094f32210ccbd1fbcaf1f45548befee4
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/45335124-a40d-4b34-8182-d1f6ee4eddfd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/45335124-a40d-4b34-8182-d1f6ee4eddfd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/45335124-a40d-4b34-8182-d1f6ee4eddfd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
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 0x3f815ebdc562058b92d41964b5a7fc5d094f32210ccbd1fbcaf1f45548befee4. 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/45335124-a40d-4b34-8182-d1f6ee4eddfd.json and https://artists.proofprofile.net/proofs/artist/45335124-a40d-4b34-8182-d1f6ee4eddfd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
album: I Remember
  type: MusicAlbum
  date published: 2021-08-27
album: Blame the World
  type: MusicAlbum
  date published: 2022-08-20
album: ChatGPT
  type: MusicAlbum
  date published: 2023-08-04
album: This Is How You Lose Me
  type: MusicAlbum
  date published: 2023-09-15
album: Monica
  type: MusicAlbum
  date published: 2023-11-10
album: One That You Bless
  type: MusicAlbum
  date published: 2024-01-05
album: Oskopnir
  type: MusicAlbum
  date published: 2024-03-01
  track: Oskopnir
    type: MusicRecording
    duration: PT2M30S
    duration ms: 150374
    explicit: false
    by artist: Fenrir
    in album: Oskopnir
      type: MusicAlbum
      date published: 2024-03-01
    genre: drum and bass
    isrc code: GX89G2479694
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T00:15:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x611cb1aff08dbeab2d3fb6e19b1a6c4f2b6bcfc9fd63137723db8ffb1e4b1791
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958342
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958342
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX89G2479694
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T03:19:06Z
    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 0x611cb1aff08dbeab2d3fb6e19b1a6c4f2b6bcfc9fd63137723db8ffb1e4b1791. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:19:06Z), 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/GX89G2479694.
      date published: 2026-07-17T03:19:06Z
    audio: Oskopnir
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 173.849
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.549
      additional property: Energy
        type: PropertyValue
        value: 0.961
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.008
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.949
      additional property: Liveness
        type: PropertyValue
        value: 0.132
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.038
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.581
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Frigg's Call
  type: MusicAlbum
  date published: 2024-09-27
  track: Frigg's Call
    type: MusicRecording
    duration: PT2M37S
    duration ms: 157283
    explicit: false
    by artist: Fenrir
    in album: Frigg's Call
      type: MusicAlbum
      date published: 2024-09-27
    genre: drum and bass
    isrc code: GX5MX2476248
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T08:59:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4dd2c7390afae364017df6b73f35ab6a9a6a25148d20f31d3c1ac2ef1300b83d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX5MX2476248
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0x4dd2c7390afae364017df6b73f35ab6a9a6a25148d20f31d3c1ac2ef1300b83d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GX5MX2476248.
      date published: 2026-07-04T11:19:20Z
    audio: Frigg's Call
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 174.071
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      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
album: Vodka, Beer & Wine
album: dnb is shit
album: Expo Mental

Danceability
type: PropertyValue
value: 0.508

Energy
type: PropertyValue
value: 0.674

Speechiness
type: PropertyValue
value: 0.053

Acousticness
type: PropertyValue
value: 0.01

Instrumentalness
type: PropertyValue
value: 0.732

Liveness
type: PropertyValue
value: 0.302

Valence (Positivity)
type: PropertyValue
value: 0.646

Loudness (dB)
type: PropertyValue
value: -12.105

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Vodka, Beer & Wine
type: MusicAlbum
date published: 2025-01-31

dnb is shit
type: MusicAlbum
date published: 2025-07-25

Expo Mental
type: MusicAlbum
date published: 2025-10-03