Tin Hat
type: MusicGroup
genre: avant-garde
genre: dark cabaret
description: Tin Hat (formerly the Tin Hat Trio) is an acoustic chamber music group currently based in San Francisco, California. Their music combines many genres of music, including jazz, southern blues, bluegra
popularity: 9
followers: 1221
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additional property: CopyrightChainExplorerURL
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additional property: OTSTimestamp
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4f510b97cc562d1082f1cf20c964aa7bd2e00f1d567a96739decf3ced30a3c. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc68b2be-9751-48fd-8cd6-e29eb969e3f8.json and https://artists.proofprofile.net/proofs/artist/dc68b2be-9751-48fd-8cd6-e29eb969e3f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T06:14:42Z
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album: The Sad Machinery Of Spring
  type: MusicAlbum
  date published: 2007-01-29
  track: Daisy Bell
    type: MusicRecording
    duration: PT4M58S
    duration ms: 298240
    explicit: false
    by artist: Tin Hat
    in album: The Sad Machinery Of Spring
      type: MusicAlbum
      date published: 2007-01-29
    genre: avant-garde
    genre: dark cabaret
    isrc code: USRY20601053
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T04:17:48Z
    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 0x1a15dae752a8e050c08aa4c8eded8610aa27e878cc641b9752aab43ab5df1c9e. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:17:48Z), 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/USRY20601053.
      date published: 2026-07-22T04:17:48Z
    audio: Daisy Bell
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.419
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.409
      additional property: Energy
        type: PropertyValue
        value: 0.332
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.898
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.008
      additional property: Liveness
        type: PropertyValue
        value: 0.079
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.248
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.696
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Foreign Legion
  type: MusicAlbum
  date published: 2010-01-01
album: Tin Hat: the rain is a handsome animal (17 songs from the poetry of E.E.Cummings)
  type: MusicAlbum
  date published: 2012-08-28