Loppen
type: MusicGroup
popularity: 5
followers: 86
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7f9082abc98b02646d214436efa775a0ccbb16fec5283eb4626e20a8ff74dc25
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954017
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954017
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/372591bf-da2f-4e78-a26c-396df47d6d5c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/372591bf-da2f-4e78-a26c-396df47d6d5c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/372591bf-da2f-4e78-a26c-396df47d6d5c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:38:33Z
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 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 0x7f9082abc98b02646d214436efa775a0ccbb16fec5283eb4626e20a8ff74dc25. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/372591bf-da2f-4e78-a26c-396df47d6d5c.json and https://artists.proofprofile.net/proofs/artist/372591bf-da2f-4e78-a26c-396df47d6d5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:38:33Z
album: Loppens Beste Barnesanger (Norsk)
  type: MusicAlbum
  date published: 2024-05-31
  track: Loppen - Norsk
    type: MusicRecording
    duration: PT3M8S
    duration ms: 188768
    explicit: false
    by artist: Loppen
    in album: Loppens Beste Barnesanger (Norsk)
      type: MusicAlbum
      date published: 2024-05-31
    isrc code: DK2DY2400263
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T15:52:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x624ae9f5d3e156de07febc13277b24c5b8d6bb73beec0fcb6aa72986bb6f468d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958576
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958576
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DK2DY2400263
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T16:22:28Z
    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 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 0x624ae9f5d3e156de07febc13277b24c5b8d6bb73beec0fcb6aa72986bb6f468d. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/DK2DY2400263.
      date published: 2026-07-18T16:22:28Z
    audio: Loppen - Norsk
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.009
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.817
      additional property: Energy
        type: PropertyValue
        value: 0.516
      additional property: Speechiness
        type: PropertyValue
        value: 0.071
      additional property: Acousticness
        type: PropertyValue
        value: 0.23
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.251
      additional property: Liveness
        type: PropertyValue
        value: 0.113
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.885
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.725
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major