Chroma K
type: MusicGroup
popularity: 8
followers: 207
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf343f846bec99ccd670d017cc7f7bff778d8f9d7a738f2360806d2d11cfe8aaf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c142fe2b-e55d-46c6-9f44-37f7534daabb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c142fe2b-e55d-46c6-9f44-37f7534daabb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c142fe2b-e55d-46c6-9f44-37f7534daabb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf343f846bec99ccd670d017cc7f7bff778d8f9d7a738f2360806d2d11cfe8aaf","name":"Chroma K","registered_at":"2026-06-20T19:25:50Z","symbol":"NIM1690416","token_address":"0xbc5e3510412a3ac463b2417dd0755e10722f8c32","type":"artist","uuid":"c142fe2b-e55d-46c6-9f44-37f7534daabb"}
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 0xf343f846bec99ccd670d017cc7f7bff778d8f9d7a738f2360806d2d11cfe8aaf. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c142fe2b-e55d-46c6-9f44-37f7534daabb.json and https://artists.proofprofile.net/proofs/artist/c142fe2b-e55d-46c6-9f44-37f7534daabb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0xf343f846bec99ccd670d017cc7f7bff778d8f9d7a738f2360806d2d11cfe8aaf","name":"Chroma K","registered_at":"2026-06-20T19:25:50Z","symbol":"NIM1690416","token_address":"0xbc5e3510412a3ac463b2417dd0755e10722f8c32","type":"artist","uuid":"c142fe2b-e55d-46c6-9f44-37f7534daabb"}
album: Perfeita Estranha
  type: MusicAlbum
  date published: 2024-08-02