Jaja
type: MusicGroup
description: Jaja may refer to: People Jajá Coelho (born 1986), Jakson Avelino Coelho, Brazilian football striker Jajá (footballer, born 1974), Jair Xavier de Brito, Brazilian football winger Jajá (footballer,
popularity: 6
followers: 686
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd0d13a52be84b60409bec1afbc85e180b6a5a0a2d06fda5528cb988d9bd765fe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954055
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954055
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4442a8a3-0078-48ed-a0df-22271c3b62f5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4442a8a3-0078-48ed-a0df-22271c3b62f5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4442a8a3-0078-48ed-a0df-22271c3b62f5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:51:24Z
additional property: OTSCanonicalRecord
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 0xd0d13a52be84b60409bec1afbc85e180b6a5a0a2d06fda5528cb988d9bd765fe. Chain 2 (Bitcoin): anchored in block 954055 (2026-06-17T05:51:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4442a8a3-0078-48ed-a0df-22271c3b62f5.json and https://artists.proofprofile.net/proofs/artist/4442a8a3-0078-48ed-a0df-22271c3b62f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T05:51:24Z
album: Partenaire
  type: MusicAlbum
  date published: 2020-08-21
album: À tout jamais
  type: MusicAlbum
  date published: 2020-09-25
  track: À tout jamais
    type: MusicRecording
    duration: PT2M50S
    duration ms: 170840
    explicit: true
    by artist: Jaja
    in album: À tout jamais
      type: MusicAlbum
      date published: 2020-09-25
    isrc code: TCAFC2070018
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T03:26:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe9d154c985e4abbb404a976550bde471f96b5d8416dfa32fcf52c945376d6441
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958959
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958959
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFC2070018
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T03:51:22Z
    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 0xe9d154c985e4abbb404a976550bde471f96b5d8416dfa32fcf52c945376d6441. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/TCAFC2070018.
      date published: 2026-07-21T03:51:22Z
    audio: À tout jamais
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 180.131
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.689
      additional property: Energy
        type: PropertyValue
        value: 0.55
      additional property: Speechiness
        type: PropertyValue
        value: 0.222
      additional property: Acousticness
        type: PropertyValue
        value: 0.492
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.091
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.406
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.55
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Interlude.
  type: MusicAlbum
  date published: 2021-04-30
album: Dernier virage
  type: MusicAlbum
  date published: 2023-06-02
album: Sensationnel
  type: MusicAlbum
  date published: 2023-07-14
album: Jeff Bezos
  type: MusicAlbum
  date published: 2023-09-01
album: OLD SHIT TAPE
  type: MusicAlbum
  date published: 2024-01-01
album: LUMIÈRE ÉTEINTE
  type: MusicAlbum
  date published: 2024-06-29