Dirk
type: MusicGroup
description: thumb|upright|Scottish dirk, blade by Andrew Boog, Edinburgh, c. 1795, Royal Ontario Museum A dirk is a long-bladed thrusting dagger.Chisholm, Hugh (ed.); "Dagger", Encyclopædia Britannica, 11th ed.,
popularity: 12
followers: 19939
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x752f036acf0f601a53b4220c2127f1c4f3d1250717b144a3de5efcb51d366b5d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953770
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953770
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b5f41ac7-aa3b-40df-8980-f95b3f0c58aa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b5f41ac7-aa3b-40df-8980-f95b3f0c58aa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b5f41ac7-aa3b-40df-8980-f95b3f0c58aa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T09:50:11Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752f036acf0f601a53b4220c2127f1c4f3d1250717b144a3de5efcb51d366b5d. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5f41ac7-aa3b-40df-8980-f95b3f0c58aa.json and https://artists.proofprofile.net/proofs/artist/b5f41ac7-aa3b-40df-8980-f95b3f0c58aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
album: Sout & Peper (feat. Dj Skeady)
  type: MusicAlbum
  date published: 2019-02-04
album: Dis Wat Ons Wil Hê
  type: MusicAlbum
  date published: 2019-03-18