The Mudsharks
type: MusicGroup
genre: rocksteady
genre: ska
genre: ska punk
popularity: 4
followers: 521
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x194f2b16fdf2af9dcc31074d56e449a9fd45015c6c6202b4a37468f3870eaccf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953949
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953949
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1b6e2136-f292-4d44-8c87-1bb645b69e57.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1b6e2136-f292-4d44-8c87-1bb645b69e57.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1b6e2136-f292-4d44-8c87-1bb645b69e57
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:28:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x194f2b16fdf2af9dcc31074d56e449a9fd45015c6c6202b4a37468f3870eaccf","name":"The Mudsharks","registered_at":"2026-06-15T23:09:26Z","symbol":"NIM0861291","token_address":"0x102a6a75ea50379f6c46027660729232f0dc5327","type":"artist","uuid":"1b6e2136-f292-4d44-8c87-1bb645b69e57"}
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194f2b16fdf2af9dcc31074d56e449a9fd45015c6c6202b4a37468f3870eaccf. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b6e2136-f292-4d44-8c87-1bb645b69e57.json and https://artists.proofprofile.net/proofs/artist/1b6e2136-f292-4d44-8c87-1bb645b69e57.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x194f2b16fdf2af9dcc31074d56e449a9fd45015c6c6202b4a37468f3870eaccf","name":"The Mudsharks","registered_at":"2026-06-15T23:09:26Z","symbol":"NIM0861291","token_address":"0x102a6a75ea50379f6c46027660729232f0dc5327","type":"artist","uuid":"1b6e2136-f292-4d44-8c87-1bb645b69e57"}
album: crackin' porcelain
  type: MusicAlbum
  date published: 1994
album: Squalus Suculae
  type: MusicAlbum
  date published: 1995-05-05
track: Little Leash

Little Leash
type: MusicRecording
duration: PT2M48S
duration ms: 168251
explicit: false
by artist: The Mudsharks
in album: Hey Brother... Can You Spare Some Ska?
  type: MusicAlbum
  date published: 1997
popularity: 1
isrc code: USA560525916
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T22:42:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42b56b13ba589b61b32c2deeed8f4d53bf0f77d3c3b6b1ec1be59478abd2b023
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560525916
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b56b13ba589b61b32c2deeed8f4d53bf0f77d3c3b6b1ec1be59478abd2b023. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA560525916.
  date published: 2026-07-08T08:56:20Z
audio: Little Leash
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.132
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.435
  additional property: Energy
    type: PropertyValue
    value: 0.98
  additional property: Speechiness
    type: PropertyValue
    value: 0.071
  additional property: Acousticness
    type: PropertyValue
    value: 0.048
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.305
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.789
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.512
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major