Familiar
type: MusicGroup
description: thumb|A late-16th-century English illustration of a witch feeding her familiars In European folklore of the medieval and early modern periods, familiars (strictly familiar spirits, as "familiar" also
popularity: 8
followers: 1240
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: 2026-06-21T02:46:24Z
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f53ed767f13778053d014f7861259bda1a07b760294ee6114df608906bf5408. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1dcf8f4-c518-43c3-ad05-1c3153920c91.json and https://artists.proofprofile.net/proofs/artist/d1dcf8f4-c518-43c3-ad05-1c3153920c91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
album: Innate Beauty
  type: MusicAlbum
  date published: 2019-01-11
album: Losing Sleep
  type: MusicAlbum
  date published: 2019-02-01
album: Can't Betray
  type: MusicAlbum
  date published: 2019-02-22
album: Sun Overhead
  type: MusicAlbum
  date published: 2019-03-15
  track: Innate Beauty
    type: MusicRecording
    duration: PT4M13S
    duration ms: 253000
    explicit: false
    by artist: Familiar
    in album: Sun Overhead
      type: MusicAlbum
      date published: 2019-03-15
    isrc code: USCGJ1958923
    additional property: CopyrightID
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T21:46:50Z
    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 0x486f30443caac5d59d123487222ffd647f833d061d2b46d0997ddc7cb8fce787. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:46:50Z), 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/USCGJ1958923.
      date published: 2026-07-16T21:46:50Z
    audio: Innate Beauty
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.077
      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: 0.504
      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0.016
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.459
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.316
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.863
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
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album: Growing Tired.
  type: MusicAlbum
  date published: 2019-09-06
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  type: MusicAlbum
  date published: 2020-03-27
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  type: MusicAlbum
  date published: 2020-04-24
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  type: MusicAlbum
  date published: 2020-07-03
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  type: MusicAlbum
  date published: 2021-03-19
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  type: MusicAlbum
  date published: 2021-04-02
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2023-05-12
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  type: MusicAlbum
  date published: 2023-06-09
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  type: MusicAlbum
  date published: 2023-09-29
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  type: MusicAlbum
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  type: MusicAlbum
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