2K
type: MusicGroup
description: 2K or 2-K may refer to: Numerical 2000 (number) 2000, a year Video and images 2K resolution, a digital film resolution, display resolution, of 2048 horizontal pixels of data JPEG 2K, see JPEG 20
popularity: 3
followers: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3010c1492a9c3684b7ae2268fd2a4e97a568debc461d35fa894c8e1fa9479be7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953943
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953943
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/213e90ac-5c2e-4d23-888d-09dc66b7caac.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/213e90ac-5c2e-4d23-888d-09dc66b7caac.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/213e90ac-5c2e-4d23-888d-09dc66b7caac
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:59:32Z
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 0x3010c1492a9c3684b7ae2268fd2a4e97a568debc461d35fa894c8e1fa9479be7. Chain 2 (Bitcoin): anchored in block 953943 (2026-06-16T11:59:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/213e90ac-5c2e-4d23-888d-09dc66b7caac.json and https://artists.proofprofile.net/proofs/artist/213e90ac-5c2e-4d23-888d-09dc66b7caac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:59:32Z
album: Intro (VK)
  type: MusicAlbum
  date published: 2023-02-21