Keyboard Cat
type: MusicGroup
description: thumb|Charlie Schmidt, who made the Keyboard Cat video Keyboard Cat is a viral video and internet meme. Its original form was a video made in 1984 by Charlie Schmidt of his cat Fatso seemingly playing
popularity: 8
followers: 10889
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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 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd35468dd2babdfbf12f24994889b2481a0b8ddc6e7a3002e330df66b915db3. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd3d94aa-6cdb-4149-8d1a-c9713fa23afc.json and https://artists.proofprofile.net/proofs/artist/bd3d94aa-6cdb-4149-8d1a-c9713fa23afc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
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album: Keyboard Cat's Greatest Hits
  type: MusicAlbum
  date published: 2009-09-05
  track: Fatso's Theme aka Play Him Off, Keyboard Cat
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    by artist: Keyboard Cat
    in album: Keyboard Cat's Greatest Hits
      type: MusicAlbum
      date published: 2009-09-05
    isrc code: USHM90900002
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    additional property: OTSTimestamp
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      value: 2026-07-22T03:33:16Z
    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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7e02bb4827b310c42bd016cea7b2521911c26b9fe3b192655531066082288b. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USHM90900002.
      date published: 2026-07-22T03:33:16Z
    audio: Fatso's Theme aka Play Him Off, Keyboard Cat
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      additional property: Acousticness
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        value: 0.959
      additional property: Instrumentalness
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      additional property: Liveness
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
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album: The Many Moods of Bento
  type: MusicAlbum
  date published: 2010-06-10
  track: Reincarnated!
    type: MusicRecording
    duration: PT0M35S
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    explicit: false
    by artist: Keyboard Cat
    in album: The Many Moods of Bento
      type: MusicAlbum
      date published: 2010-06-10
    isrc code: USHM21012992
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    additional property: OTSTimestamp
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    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 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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886a19e0c3ef76e8088c11211f1354d909e847ef5fa1ab93018b36b9138a2df6. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USHM21012992.
      date published: 2026-07-18T03:34:53Z
    audio: Reincarnated!
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      additional property: Danceability
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      additional property: Speechiness
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      additional property: Liveness
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      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: A OK
album: It's A Keyboard Cat Christmas!
album: Auld Lang Syne
album: Play Him off, Keyboard Cat
album: Comeback
album: Long, Long Time Ago

Valence (Positivity)
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value: 0.961

Loudness (dB)
type: PropertyValue
value: -11.076

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Minor

A OK
type: MusicAlbum
date published: 2010-08-18

It's A Keyboard Cat Christmas!
type: MusicAlbum
date published: 2010-12-08

Auld Lang Syne
type: MusicAlbum
date published: 2010-12-20

Play Him off, Keyboard Cat
type: MusicAlbum
date published: 2017-03-20

Comeback
type: MusicAlbum
date published: 2025-03-18

Long, Long Time Ago
type: MusicAlbum
date published: 2025-04-05
track: Long, Long Time Ago
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  duration: PT2M11S
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  by artist: Keyboard Cat
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    date published: 2025-04-05
  isrc code: US5940510518
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  additional property: OTSTimestamp
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    value: 2026-07-12T23:51:20Z
  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 0xd5d9e05826c27aa625888b827a4dc2340592fd64b9428dc0a0f7ae16d28c76e7. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/US5940510518.
    date published: 2026-07-12T23:51:20Z
  audio: Long, Long Time Ago
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.072
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.48
    additional property: Key Name
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      value: C
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