Hermien
type: MusicGroup
genre: polka
popularity: 3
followers: 93
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfccfbde2fd7d512e51caf3d36e1829c77cbec550632e3b15a70688043ade3edd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954131
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954131
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d363c1f-b2b7-4271-9c00-f968f0784d1e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d363c1f-b2b7-4271-9c00-f968f0784d1e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7d363c1f-b2b7-4271-9c00-f968f0784d1e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:19:19Z
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 0xfccfbde2fd7d512e51caf3d36e1829c77cbec550632e3b15a70688043ade3edd. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d363c1f-b2b7-4271-9c00-f968f0784d1e.json and https://artists.proofprofile.net/proofs/artist/7d363c1f-b2b7-4271-9c00-f968f0784d1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:19:19Z
album: Jij Bent Een Zonnestraal
  type: MusicAlbum
  date published: 2003
album: Neem voor mij maar een ander
  type: MusicAlbum
  date published: 2015-05-13
album: Neem voor mij maar een ander
  type: MusicAlbum
  date published: 2015-05-13
album: Vleugels Der Liefde
  type: MusicAlbum
  date published: 2017-06-21
album: Vleugels Der Liefde
  type: MusicAlbum
  date published: 2017-06-21
album: Ik heb alleen nog maar die foto
  type: MusicAlbum
  date published: 2023-08-24
album: Wie komt er in mijn hokkie
  type: MusicAlbum
  date published: 2024-04-12
album: Albatros
  type: MusicAlbum
  date published: 2025-10-15