Legend Kroos
type: MusicGroup
popularity: 5
followers: 281
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc5b632e77f87d9b379ae2f5eae6b13ba12408a3ab6c5798cda2f3b94ebb8d942
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/90022f45-76e7-4116-8a1d-db5cb37d23b7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/90022f45-76e7-4116-8a1d-db5cb37d23b7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/90022f45-76e7-4116-8a1d-db5cb37d23b7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc5b632e77f87d9b379ae2f5eae6b13ba12408a3ab6c5798cda2f3b94ebb8d942","name":"Legend Kroos","registered_at":"2026-06-17T15:56:00Z","symbol":"NIM1445038","token_address":"0x22df912b6627930db4317f9146849d1dabe6885c","type":"artist","uuid":"90022f45-76e7-4116-8a1d-db5cb37d23b7"}
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 0xc5b632e77f87d9b379ae2f5eae6b13ba12408a3ab6c5798cda2f3b94ebb8d942. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90022f45-76e7-4116-8a1d-db5cb37d23b7.json and https://artists.proofprofile.net/proofs/artist/90022f45-76e7-4116-8a1d-db5cb37d23b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xc5b632e77f87d9b379ae2f5eae6b13ba12408a3ab6c5798cda2f3b94ebb8d942","name":"Legend Kroos","registered_at":"2026-06-17T15:56:00Z","symbol":"NIM1445038","token_address":"0x22df912b6627930db4317f9146849d1dabe6885c","type":"artist","uuid":"90022f45-76e7-4116-8a1d-db5cb37d23b7"}
album: Elemento
  type: MusicAlbum
  date published: 2023-10-13
album: Tell Me
  type: MusicAlbum
  date published: 2023-11-03
album: Tell Me (Radio Edit)
  type: MusicAlbum
  date published: 2023-11-03
album: Oxygen
  type: MusicAlbum
  date published: 2023-11-03
  track: Oxygen
    type: MusicRecording
    duration: PT2M36S
    duration ms: 156190
    explicit: false
    by artist: Legend Kroos
    in album: Oxygen
      type: MusicAlbum
      date published: 2023-11-03
    isrc code: CA5KR2390916
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T17:08:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb5f77956da9cd48055012b866e0e3a89f4bd0fb9c3ec36d39225946bcaf44a26
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2390916
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0xb5f77956da9cd48055012b866e0e3a89f4bd0fb9c3ec36d39225946bcaf44a26. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CA5KR2390916.
      date published: 2026-07-05T19:27:56Z
    audio: Oxygen
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.003
      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
        value: 0.625
      additional property: Energy
        type: PropertyValue
        value: 0.971
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.858
      additional property: Liveness
        type: PropertyValue
        value: 0.255
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.278
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.118
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tell Me
  type: MusicAlbum
  date published: 2023-11-03
album: Infinity
  type: MusicAlbum
  date published: 2024-02-24
album: Chasing Dreams
  type: MusicAlbum
  date published: 2024-06-14
album: Can U Feel It
  type: MusicAlbum
  date published: 2024-10-11