Mardi Gras
type: MusicGroup
description: Mardi Gras (; ), also known as Shrove Tuesday, is the final day of Carnival (also known as Shrovetide or Fastelavn); it thus falls on the day before the beginning of Lent on Ash Wednesday. () is Fren
popularity: 5
followers: 360
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x40df14600cc119ed9a5c09487e90f5867ca7b286af9e481de0974df2445112b2
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ea43cb30-f411-4a21-90b7-d2ace15faaf2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ea43cb30-f411-4a21-90b7-d2ace15faaf2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ea43cb30-f411-4a21-90b7-d2ace15faaf2
additional property: OTSTimestamp
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  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x40df14600cc119ed9a5c09487e90f5867ca7b286af9e481de0974df2445112b2","name":"Mardi Gras","registered_at":"2026-06-21T10:16:56Z","symbol":"NIM1897048","token_address":"0xc2a6609525d0c65ca0ffb399a1fbcc0255e70972","type":"artist","uuid":"ea43cb30-f411-4a21-90b7-d2ace15faaf2"}
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 0x40df14600cc119ed9a5c09487e90f5867ca7b286af9e481de0974df2445112b2. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea43cb30-f411-4a21-90b7-d2ace15faaf2.json and https://artists.proofprofile.net/proofs/artist/ea43cb30-f411-4a21-90b7-d2ace15faaf2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x40df14600cc119ed9a5c09487e90f5867ca7b286af9e481de0974df2445112b2","name":"Mardi Gras","registered_at":"2026-06-21T10:16:56Z","symbol":"NIM1897048","token_address":"0xc2a6609525d0c65ca0ffb399a1fbcc0255e70972","type":"artist","uuid":"ea43cb30-f411-4a21-90b7-d2ace15faaf2"}
album: Too Busy Thinking About My Baby
  type: MusicAlbum
  date published: 1971-03-26
  track: Too Busy Thinking About My Baby
    type: MusicRecording
    duration: PT4M16S
    duration ms: 256306
    explicit: false
    by artist: Mardi Gras
    in album: Too Busy Thinking About My Baby
      type: MusicAlbum
      date published: 1971-03-26
    isrc code: USDHM1707933
    additional property: CopyrightID
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      value: registered
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDHM1707933
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0x239cfa2e06af642782118cced0b8f6b8fbf88d2ed21bcd81b8b97c4a44cd0eb3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USDHM1707933.
      date published: 2026-07-03T08:56:35Z
    audio: Too Busy Thinking About My Baby
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.821
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.096
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.945
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.635
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major