Ruurd
type: MusicGroup
genre: g-funk
description: Ruurd is a given name. Notable people with the given name include: Ruurd Dirk Hoogland (1922–1994), Dutch explorer Ruurd Leegstra (1877–1933), Dutch rower and Olympian See also Ruud Category:Dut
popularity: 2
followers: 185
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3752e30b5d6f3067ca96e528edc17b969646f0d86c3649a6454676806ff14016
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954130
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954130
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7c714fd9-bbdb-41fa-a1f6-ef6321861f67.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7c714fd9-bbdb-41fa-a1f6-ef6321861f67.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7c714fd9-bbdb-41fa-a1f6-ef6321861f67
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:07:14Z
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 0x3752e30b5d6f3067ca96e528edc17b969646f0d86c3649a6454676806ff14016. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c714fd9-bbdb-41fa-a1f6-ef6321861f67.json and https://artists.proofprofile.net/proofs/artist/7c714fd9-bbdb-41fa-a1f6-ef6321861f67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:07:14Z
album: Chocomel
  type: MusicAlbum
  date published: 2020-01-03
album: Magic
  type: MusicAlbum
  date published: 2021-01-22
album: Nutella
  type: MusicAlbum
  date published: 2021-06-13
album: Anders Dan Anders
  type: MusicAlbum
  date published: 2021-11-02
album: Someone Like You
  type: MusicAlbum
  date published: 2021-11-17
album: Peter en de Wolf
  type: MusicAlbum
  date published: 2022-01-20
album: My Destiny
  type: MusicAlbum
  date published: 2022-02-08
album: Het laatste licht
  type: MusicAlbum
  date published: 2022-02-24
album: Het Laatste LIcht
  type: MusicAlbum
  date published: 2022-02-24
album: De Grens Voorbij
  type: MusicAlbum
  date published: 2022-07-07
album: Weet wat je achterlaat
  type: MusicAlbum
  date published: 2022-07-30
album: Rood
  type: MusicAlbum
  date published: 2022-09-14
album: I Walk Alone
  type: MusicAlbum
  date published: 2023-07-23