The Free Spirits
type: MusicGroup
genre: acid rock
genre: jazz fusion
genre: psychedelic rock
description: The Free Spirits was an American band credited as the first jazz-rock group. The band also incorporated elements of pop and garage rock. Their first album, Out of Sight and Sound, was recorded in 1966
popularity: 5
followers: 1065
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85539197583e16b60b0372b5a4cd616a0360c533a86f12975bdd2c04860eb6f. 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/98bf4699-2c1b-4f35-b8d6-bcc703d8bd50.json and https://artists.proofprofile.net/proofs/artist/98bf4699-2c1b-4f35-b8d6-bcc703d8bd50.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
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album: Out Of Sight And Sound
  type: MusicAlbum
  date published: 2006
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    by artist: The Free Spirits
    in album: Out Of Sight And Sound
      type: MusicAlbum
      date published: 2006
    genre: acid rock
    genre: jazz fusion
    genre: psychedelic rock
    isrc code: CYRLD1400045
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      value: 2026-07-06T07:16:32Z
    additional property: OTSVerifyInstructions
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      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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ea0ae774b982cb79ecc272d06d52c96ccea6a3caa08e76c2ed478a223fcf62. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CYRLD1400045.
      date published: 2026-07-06T07:16:32Z
    audio: lbod
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.264
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.386
      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
        value: 0.144
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.23
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.667
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
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album: Out Of Sight And Sound
  type: MusicAlbum
  date published: 2008
album: Live At The Scene: February 22nd 1967
  type: MusicAlbum
  date published: 2011