Friendly Fire
type: MusicGroup
description: thumb|upright=1.35|An American B-17 Flying Fortress "Miss Donna Mae II" is damaged by bombs after drifting under the American bomber flying above it during the bombing of Berlin in 1944. The damage to
popularity: 5
followers: 107
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xabd203ccdc3b6e3db77ec96e78cf550502e836ebd749174d6f3c36e7aee59709
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/997db0a1-bda4-41ce-9038-1170bbabfdb9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/997db0a1-bda4-41ce-9038-1170bbabfdb9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/997db0a1-bda4-41ce-9038-1170bbabfdb9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xabd203ccdc3b6e3db77ec96e78cf550502e836ebd749174d6f3c36e7aee59709","name":"Friendly Fire","registered_at":"2026-06-17T19:15:47Z","symbol":"NIM1492728","token_address":"0xa8a24dc34fecf42135596fd9703ebb3c81d40d38","type":"artist","uuid":"997db0a1-bda4-41ce-9038-1170bbabfdb9"}
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 0xabd203ccdc3b6e3db77ec96e78cf550502e836ebd749174d6f3c36e7aee59709. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/997db0a1-bda4-41ce-9038-1170bbabfdb9.json and https://artists.proofprofile.net/proofs/artist/997db0a1-bda4-41ce-9038-1170bbabfdb9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xabd203ccdc3b6e3db77ec96e78cf550502e836ebd749174d6f3c36e7aee59709","name":"Friendly Fire","registered_at":"2026-06-17T19:15:47Z","symbol":"NIM1492728","token_address":"0xa8a24dc34fecf42135596fd9703ebb3c81d40d38","type":"artist","uuid":"997db0a1-bda4-41ce-9038-1170bbabfdb9"}
album: How I Feel
  type: MusicAlbum
  date published: 2020-06-15
album: Into You
  type: MusicAlbum
  date published: 2020-06-15
album: Time
  type: MusicAlbum
  date published: 2020-06-15
album: How I Feel
  type: MusicAlbum
  date published: 2020-06-17
album: Starboy (Chill Version)
  type: MusicAlbum
  date published: 2021-05-14
  track: Starboy (Chill Version)
    type: MusicRecording
    duration: PT2M34S
    duration ms: 154838
    explicit: false
    by artist: Friendly Fire
    in album: Starboy (Chill Version)
      type: MusicAlbum
      date published: 2021-05-14
    isrc code: GX38U2165149
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T09:51:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8a9ef199534b3939bbbdc8a9ff04f3c12fe11ca6f43919ca6b3532d6d8668920
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958716
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958716
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX38U2165149
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T10:15:55Z
    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 0x8a9ef199534b3939bbbdc8a9ff04f3c12fe11ca6f43919ca6b3532d6d8668920. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GX38U2165149.
      date published: 2026-07-19T10:15:55Z
    audio: Starboy (Chill Version)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 92.958
      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
        type: PropertyValue
        value: 0.711
      additional property: Energy
        type: PropertyValue
        value: 0.536
      additional property: Speechiness
        type: PropertyValue
        value: 0.447
      additional property: Acousticness
        type: PropertyValue
        value: 0.274
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.569
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.384
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.299
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major