Halldóra Geirharðsdóttir
type: MusicGroup
description: Halldóra Geirharðsdóttir (born 12 October 1968) is an Icelandic actress and musician. In the 1990s, she was also a saxophonist and vocalist of the group Reptile. Biography Halldóra graduated from the
popularity: 3
followers: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd9300b4a7959f3e3f4e6fbf2bba35e688194d31b247d754e46a678201e4c9d58
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954008
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954008
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3372b1c6-b02e-4c0b-89a1-4dd95c1ac64a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3372b1c6-b02e-4c0b-89a1-4dd95c1ac64a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3372b1c6-b02e-4c0b-89a1-4dd95c1ac64a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T21:31:27Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd9300b4a7959f3e3f4e6fbf2bba35e688194d31b247d754e46a678201e4c9d58","name":"Halldóra Geirharðsdóttir","registered_at":"2026-06-16T07:26:20Z","symbol":"NIM0979973","token_address":"0xc3295b0c7c125fa7d2f295e4aab2e9daaab4908f","type":"artist","uuid":"3372b1c6-b02e-4c0b-89a1-4dd95c1ac64a"}
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 0xd9300b4a7959f3e3f4e6fbf2bba35e688194d31b247d754e46a678201e4c9d58. Chain 2 (Bitcoin): anchored in block 954008 (2026-06-16T21:31:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3372b1c6-b02e-4c0b-89a1-4dd95c1ac64a.json and https://artists.proofprofile.net/proofs/artist/3372b1c6-b02e-4c0b-89a1-4dd95c1ac64a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T21:31:27Z
  text: {"copyright_id":"0xd9300b4a7959f3e3f4e6fbf2bba35e688194d31b247d754e46a678201e4c9d58","name":"Halldóra Geirharðsdóttir","registered_at":"2026-06-16T07:26:20Z","symbol":"NIM0979973","token_address":"0xc3295b0c7c125fa7d2f295e4aab2e9daaab4908f","type":"artist","uuid":"3372b1c6-b02e-4c0b-89a1-4dd95c1ac64a"}
track: Pétur og úlfurinn - tónlistarævintýri
  type: MusicRecording
  duration: PT29M18S
  duration ms: 1758134
  explicit: false
  by artist: Iceland Symphony Orchestra
  by artist: Daníel Bjarnason
  by artist: Halldóra Geirharðsdóttir
  in album: Pétur og úlfurinn - tónlistarævintýri
    type: MusicAlbum
    date published: 2025-02-28
  genre: orchestra
  isrc code: ISV982510201
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-23T13:12:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8933702de185ef1402b5f6bb853435832516e676a29c4c68ef40b74d87ff74fb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISV982510201
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x8933702de185ef1402b5f6bb853435832516e676a29c4c68ef40b74d87ff74fb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ISV982510201.
    date published: 2026-07-02T03:55:08Z
  audio: Pétur og úlfurinn - tónlistarævintýri
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 99.243
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.384
    additional property: Energy
      type: PropertyValue
      value: 0.022
    additional property: Speechiness
      type: PropertyValue
      value: 0.096
    additional property: Acousticness
      type: PropertyValue
      value: 0.915
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.186
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.096
    additional property: Loudness (dB)
      type: PropertyValue
      value: -30.534
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major