Kartel
type: MusicGroup
description: Kartel may refer to: Kartel, Liquor Store, a store in Barangka Ibaba, Mandaluyong Kartel, Maharashtra, a village in Ratnagiri district, Maharashtra state, India Kartel (electoral alliance), Dutch ter
popularity: 2
followers: 2061
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0ac4c6f679a16c48e571532db779269d24579b6f5f803492c707737b8d0b0a97
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eeb784ac-21ec-444a-bded-31fbcb1bf20a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eeb784ac-21ec-444a-bded-31fbcb1bf20a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/eeb784ac-21ec-444a-bded-31fbcb1bf20a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
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 0x0ac4c6f679a16c48e571532db779269d24579b6f5f803492c707737b8d0b0a97. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eeb784ac-21ec-444a-bded-31fbcb1bf20a.json and https://artists.proofprofile.net/proofs/artist/eeb784ac-21ec-444a-bded-31fbcb1bf20a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
album: Pera Pera
  type: MusicAlbum
  date published: 2020-03-31
album: Pahiwatig
  type: MusicAlbum
  date published: 2020-04-22
album: Kontrapunto
  type: MusicAlbum
  date published: 2020-05-08