HARD VIKINGS
type: MusicGroup
popularity: 6
followers: 49
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef53cf3c1b49daae9025a127f2fcd17b7c5d023e43da84a72e7a1369243f1d80
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954050
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954050
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/430223ff-a2e1-4634-b209-8a9fdc962f85.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/430223ff-a2e1-4634-b209-8a9fdc962f85.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/430223ff-a2e1-4634-b209-8a9fdc962f85
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:14:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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 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 0xef53cf3c1b49daae9025a127f2fcd17b7c5d023e43da84a72e7a1369243f1d80. Chain 2 (Bitcoin): anchored in block 954050 (2026-06-17T05:14:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/430223ff-a2e1-4634-b209-8a9fdc962f85.json and https://artists.proofprofile.net/proofs/artist/430223ff-a2e1-4634-b209-8a9fdc962f85.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T05:14:33Z
  text: {"copyright_id":"0xef53cf3c1b49daae9025a127f2fcd17b7c5d023e43da84a72e7a1369243f1d80","name":"HARD VIKINGS","registered_at":"2026-06-16T12:55:05Z","symbol":"NIM1058417","token_address":"0xc2c62974d853b1c0fe1df775d4bc09d6cd57aecc","type":"artist","uuid":"430223ff-a2e1-4634-b209-8a9fdc962f85"}
album: Hardstyle Forever
  type: MusicAlbum
  date published: 2024-04-11
album: Where Legends Never Dies
  type: MusicAlbum
  date published: 2024-04-15
album: The Northern Skies
  type: MusicAlbum
  date published: 2024-04-18
album: Crescent Moon Light
  type: MusicAlbum
  date published: 2024-04-20
album: Warriors of the Frozen Land
  type: MusicAlbum
  date published: 2024-04-20
album: Valhalla
  type: MusicAlbum
  date published: 2024-04-20
album: She Rides the Winds
  type: MusicAlbum
  date published: 2024-04-20
album: Ragnar Lothbrok
  type: MusicAlbum
  date published: 2024-04-20
album: Northern Light
  type: MusicAlbum
  date published: 2024-04-20
album: Courageous Hearts
  type: MusicAlbum
  date published: 2024-05-27
album: Never Fall
  type: MusicAlbum
  date published: 2024-05-27
album: Ready to Fight
  type: MusicAlbum
  date published: 2024-05-31
album: In Odin's Name
  type: MusicAlbum
  date published: 2024-06-06
album: We are the Warriors
  type: MusicAlbum
  date published: 2024-06-12
album: Runic Vibes
  type: MusicAlbum
  date published: 2024-06-17
album: Rise from the Ashes
  type: MusicAlbum
  date published: 2024-06-20
album: Hardstyle Thunder
  type: MusicAlbum
  date published: 2024-06-24
album: Lagertha, My Queen
  type: MusicAlbum
  date published: 2024-06-27
album: Harald Fairhair
  type: MusicAlbum
  date published: 2024-07-29
album: Viking Rise
  type: MusicAlbum
  date published: 2024-08-09
album: Row with Rollo
  type: MusicAlbum
  date published: 2024-08-23
album: Ravens
  type: MusicAlbum
  date published: 2024-09-20
album: ROAR
  type: MusicAlbum
  date published: 2024-09-28
album: Thor
  type: MusicAlbum
  date published: 2024-10-02
album: Rhythm of the Sea
  type: MusicAlbum
  date published: 2024-10-10
album: Yggdrasil
  type: MusicAlbum
  date published: 2024-10-17
album: Hard Times Forge the Strong
  type: MusicAlbum
  date published: 2024-10-24
album: Fjords
  type: MusicAlbum
  date published: 2025-01-18
  track: Fjords
    type: MusicRecording
    duration: PT2M35S
    duration ms: 155679
    explicit: false
    by artist: HARD VIKINGS
    in album: Fjords
      type: MusicAlbum
      date published: 2025-01-18
    isrc code: QZFZ32527255
    additional property: CopyrightID
    additional property: CopyrightStatus
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      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T16:43:56+00:00
    additional property: CopyrightChainExplorerURL
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      value: https://explorer.copyrightchains.com/tx/0x375c3f123c6b57852dd38bd80b52f7f1d2f9852551da0bf0b1828415a9c7c9a0
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ32527255
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0x375c3f123c6b57852dd38bd80b52f7f1d2f9852551da0bf0b1828415a9c7c9a0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ32527255 — a six-check JSON result.
      date published: 2026-07-03T19:59:51Z
    audio: Fjords
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.913
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.545
      additional property: Energy
        type: PropertyValue
        value: 0.705
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.361
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.357
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.255
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
album: Vikings Forever
album: Chasing Echoes
album: Bjørn Ironside
album: Norse Blood
album: Viking Blood
album: Valhalla’s Shore
album: Floki
album: Echoes of the Fjord
album: Viking's Return
album: Family

Mode Name
type: PropertyValue
value: Minor

Vikings Forever
type: MusicAlbum
date published: 2025-02-01

Chasing Echoes
type: MusicAlbum
date published: 2025-03-31

Bjørn Ironside
type: MusicAlbum
date published: 2025-04-10

Norse Blood
type: MusicAlbum
date published: 2025-07-14

Viking Blood
type: MusicAlbum
date published: 2025-08-07

Valhalla’s Shore
type: MusicAlbum
date published: 2025-08-11

Floki
type: MusicAlbum
date published: 2025-08-14

Echoes of the Fjord
type: MusicAlbum
date published: 2025-08-25

Viking's Return
type: MusicAlbum
date published: 2025-09-04

Family
type: MusicAlbum
date published: 2025-09-17