99' Kids
type: MusicGroup
popularity: 5
followers: 253
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd24ae35ae61a242854d02766fdd20c80dd549c9ae3d8076158225a2b130507b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954097
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954097
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b21500d-765f-45ad-8d28-9aba0bc07b5b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b21500d-765f-45ad-8d28-9aba0bc07b5b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7b21500d-765f-45ad-8d28-9aba0bc07b5b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T13:13:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd24ae35ae61a242854d02766fdd20c80dd549c9ae3d8076158225a2b130507b7","name":"99' Kids","registered_at":"2026-06-17T08:31:31Z","symbol":"NIM1339081","token_address":"0x8d838ecc9ccea7baa48219bd9ced755db9507c8a","type":"artist","uuid":"7b21500d-765f-45ad-8d28-9aba0bc07b5b"}
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 0xd24ae35ae61a242854d02766fdd20c80dd549c9ae3d8076158225a2b130507b7. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b21500d-765f-45ad-8d28-9aba0bc07b5b.json and https://artists.proofprofile.net/proofs/artist/7b21500d-765f-45ad-8d28-9aba0bc07b5b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:19:19Z
  text: {"copyright_id":"0xd24ae35ae61a242854d02766fdd20c80dd549c9ae3d8076158225a2b130507b7","name":"99' Kids","registered_at":"2026-06-17T08:31:31Z","symbol":"NIM1339081","token_address":"0x8d838ecc9ccea7baa48219bd9ced755db9507c8a","type":"artist","uuid":"7b21500d-765f-45ad-8d28-9aba0bc07b5b"}
album: Sub Low
  type: MusicAlbum
  date published: 2021-10-07
album: Vol. 1
  type: MusicAlbum
  date published: 2022-12-09
album: 0 ES 3
  type: MusicAlbum
  date published: 2023-10-22
album: LUNA
  type: MusicAlbum
  date published: 2024-04-06
album: Pompi
  type: MusicAlbum
  date published: 2024-06-01
album: Antisoushal
  type: MusicAlbum
  date published: 2024-06-06
album: Gottera
  type: MusicAlbum
  date published: 2024-07-07
album: Pompi (Extended Version)
  type: MusicAlbum
  date published: 2024-07-21
album: Origami
  type: MusicAlbum
  date published: 2024-10-04
album: Killer
  type: MusicAlbum
  date published: 2025-02-02
  track: Killer
    type: MusicRecording
    duration: PT3M10S
    duration ms: 190588
    explicit: false
    by artist: 99' Kids
    in album: Killer
      type: MusicAlbum
      date published: 2025-02-02
    isrc code: USCGJ2523746
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T01:49:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x83273db72e5f076bff646cb15f4a8ee661d3b59841cc95512c2dddb2b8e9dd93
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956656
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956656
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2523746
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T14:03:39Z
    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 0x83273db72e5f076bff646cb15f4a8ee661d3b59841cc95512c2dddb2b8e9dd93. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USCGJ2523746.
      date published: 2026-07-04T14:03:39Z
    audio: Killer
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 84.321
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.541
      additional property: Energy
        type: PropertyValue
        value: 0.596
      additional property: Speechiness
        type: PropertyValue
        value: 0.155
      additional property: Acousticness
        type: PropertyValue
        value: 0.11
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.095
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.438
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.585
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: FOCUS
  type: MusicAlbum
  date published: 2025-09-09
  track: La Vibe
    type: MusicRecording
    duration: PT3M9S
    duration ms: 189989
    explicit: false
    by artist: 99' Kids
    in album: FOCUS
      type: MusicAlbum
      date published: 2025-09-09
    isrc code: PYC842508724
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T20:05:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x515ba06916a968ab44b696968b2cd53a9060f482fe305a36afdaad4c76306e7a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958931
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958931
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PYC842508724
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:15:01Z
    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 0x515ba06916a968ab44b696968b2cd53a9060f482fe305a36afdaad4c76306e7a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/PYC842508724.
      date published: 2026-07-20T21:15:01Z
    audio: La Vibe
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.04
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      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

Mode (Major/Minor)
type: PropertyValue
value: 0

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.777

Energy
type: PropertyValue
value: 0.704

Speechiness
type: PropertyValue
value: 0.346

Acousticness
type: PropertyValue
value: 0.056

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.358

Valence (Positivity)
type: PropertyValue
value: 0.572

Loudness (dB)
type: PropertyValue
value: -4.721

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Minor