Fatcat & Fishface
type: MusicGroup
genre: children's music
popularity: 12
followers: 545
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x60dd8b983745cc91174b6bbc373ee46923d3d282753e682dd7faca28e80ff2de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4dc80714-6a77-4fc5-8d42-4edb4e0988ad.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4dc80714-6a77-4fc5-8d42-4edb4e0988ad.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4dc80714-6a77-4fc5-8d42-4edb4e0988ad
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x60dd8b983745cc91174b6bbc373ee46923d3d282753e682dd7faca28e80ff2de","name":"Fatcat & Fishface","registered_at":"2026-06-14T12:36:22Z","symbol":"NIM0454897","token_address":"0x4947a50e6de9eeb1dd01898bc7f6bfa107d7f1d8","type":"artist","uuid":"4dc80714-6a77-4fc5-8d42-4edb4e0988ad"}
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 0x60dd8b983745cc91174b6bbc373ee46923d3d282753e682dd7faca28e80ff2de. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4dc80714-6a77-4fc5-8d42-4edb4e0988ad.json and https://artists.proofprofile.net/proofs/artist/4dc80714-6a77-4fc5-8d42-4edb4e0988ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
  text: {"copyright_id":"0x60dd8b983745cc91174b6bbc373ee46923d3d282753e682dd7faca28e80ff2de","name":"Fatcat & Fishface","registered_at":"2026-06-14T12:36:22Z","symbol":"NIM0454897","token_address":"0x4947a50e6de9eeb1dd01898bc7f6bfa107d7f1d8","type":"artist","uuid":"4dc80714-6a77-4fc5-8d42-4edb4e0988ad"}
album: Horrible Songs for Children
  type: MusicAlbum
  date published: 1997-05-01
album: Horrible Songs for Children
  type: MusicAlbum
  date published: 1997-06-11
  track: Favourite Undies
    type: MusicRecording
    duration: PT0M47S
    duration ms: 47160
    explicit: false
    by artist: Fatcat & Fishface
    in album: Horrible Songs for Children
      type: MusicAlbum
      date published: 1997-06-11
    genre: children's music
    isrc code: NZFC09700007
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T11:27:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xab8608eb3e9729fad1caacc59c3c7e298dd6444fb2644da1ef5b57ce8284e855
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NZFC09700007
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0xab8608eb3e9729fad1caacc59c3c7e298dd6444fb2644da1ef5b57ce8284e855. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NZFC09700007.
      date published: 2026-07-03T19:59:51Z
    audio: Favourite Undies
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.395
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.922
      additional property: Energy
        type: PropertyValue
        value: 0.356
      additional property: Speechiness
        type: PropertyValue
        value: 0.127
      additional property: Acousticness
        type: PropertyValue
        value: 0.711
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.193
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.528
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.342
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Horrible Songs for Children
  type: MusicAlbum
  date published: 1997-06-11
album: Selfish Shellfish
  type: MusicAlbum
  date published: 1999-05-01
album: Selfish Shellfish
  type: MusicAlbum
  date published: 1999-06-11
album: Selfish Shellfish
  type: MusicAlbum
  date published: 1999-06-11
album: Dogbreath
  type: MusicAlbum
  date published: 2001-05-01
album: Dogbreath
  type: MusicAlbum
  date published: 2001-06-11
  track: Dogbreath
    type: MusicRecording
    duration: PT2M13S
    duration ms: 133520
    explicit: false
    by artist: Fatcat & Fishface
    in album: Dogbreath
      type: MusicAlbum
      date published: 2001-06-11
    genre: children's music
    isrc code: NZFC00100007
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T21:19:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc55dec19ddf03aa6d3e509a7c311bc787eec0c6ed12ba2ad77c0d2227343e1cf
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957756
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957756
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NZFC00100007
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T21:36:27Z
    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 0xc55dec19ddf03aa6d3e509a7c311bc787eec0c6ed12ba2ad77c0d2227343e1cf. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/NZFC00100007.
      date published: 2026-07-12T21:36:27Z
    audio: Dogbreath
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 115.133
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Pretty Ugly
album: Meanie
album: The Bestest and Horriblest Songs For Children
album: The Bestest & Horriblest Songs For Children
album: Birdbrain
album: The Bestest and Horriblest Songs for Children

Danceability
type: PropertyValue
value: 0.802

Energy
type: PropertyValue
value: 0.523

Speechiness
type: PropertyValue
value: 0.112

Acousticness
type: PropertyValue
value: 0.319

Instrumentalness
type: PropertyValue
value: 0.507

Liveness
type: PropertyValue
value: 0.052

Valence (Positivity)
type: PropertyValue
value: 0.945

Loudness (dB)
type: PropertyValue
value: -8.755

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor

Dogbreath
type: MusicAlbum
date published: 2001-06-11

Pretty Ugly
type: MusicAlbum
date published: 2004-05-01

Pretty Ugly
type: MusicAlbum
date published: 2004-06-11

Pretty Ugly
type: MusicAlbum
date published: 2004-06-11

Meanie
type: MusicAlbum
date published: 2007-05-01

Meanie
type: MusicAlbum
date published: 2007-06-11

Meanie
type: MusicAlbum
date published: 2007-06-11

The Bestest and Horriblest Songs For Children
type: MusicAlbum
date published: 2008-11-04

The Bestest & Horriblest Songs For Children
type: MusicAlbum
date published: 2008-11-04

Birdbrain
type: MusicAlbum
date published: 2009-10-25

Birdbrain
type: MusicAlbum
date published: 2015-01-12

The Bestest and Horriblest Songs For Children
type: MusicAlbum
date published: 2015-01-12

The Bestest and Horriblest Songs for Children
type: MusicAlbum
date published: 2015-01-12

Birdbrain
type: MusicAlbum
date published: 2015-01-12
track: Penguin
  type: MusicRecording
  duration: PT2M25S
  duration ms: 145333
  explicit: false
  by artist: Fatcat & Fishface
  in album: Birdbrain
    type: MusicAlbum
    date published: 2015-01-12
  genre: children's music
  isrc code: NZFC00900012
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T22:30:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8b27345ebba4acd305a726e17f853335835bc5e92d1f3346aa01b06769445227
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958792
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958792
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NZFC00900012
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T22:55:52Z
  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 0x8b27345ebba4acd305a726e17f853335835bc5e92d1f3346aa01b06769445227. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/NZFC00900012.
    date published: 2026-07-19T22:55:52Z
  audio: Penguin
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 132.024
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.857
    additional property: Energy
      type: PropertyValue
      value: 0.469
    additional property: Speechiness
      type: PropertyValue
      value: 0.048
    additional property: Acousticness
      type: PropertyValue
      value: 0.527
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.205
    additional property: Liveness
      type: PropertyValue
      value: 0.036
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.979
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.049
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major