Sólveig Matthildur
type: MusicGroup
genre: cold wave
genre: darkwave
genre: post-punk
popularity: 13
followers: 2110
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe0a57d3a7056bf3dc52ae729deefd66f60ff10b004f9e5cf8b001d54b15456e3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953696
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953696
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/73f4796c-efc7-478c-bdc1-9531d9e958bb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/73f4796c-efc7-478c-bdc1-9531d9e958bb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/73f4796c-efc7-478c-bdc1-9531d9e958bb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:45:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe0a57d3a7056bf3dc52ae729deefd66f60ff10b004f9e5cf8b001d54b15456e3","name":"Sólveig Matthildur","registered_at":"2026-06-14T16:34:12Z","symbol":"NIM0511668","token_address":"0x294a6ed9fd4547515d7ad66d2c2855f2fe2a2055","type":"artist","uuid":"73f4796c-efc7-478c-bdc1-9531d9e958bb"}
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 0xe0a57d3a7056bf3dc52ae729deefd66f60ff10b004f9e5cf8b001d54b15456e3. Chain 2 (Bitcoin): anchored in block 953696 (2026-06-14T21:45:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73f4796c-efc7-478c-bdc1-9531d9e958bb.json and https://artists.proofprofile.net/proofs/artist/73f4796c-efc7-478c-bdc1-9531d9e958bb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:45:57Z
  text: {"copyright_id":"0xe0a57d3a7056bf3dc52ae729deefd66f60ff10b004f9e5cf8b001d54b15456e3","name":"Sólveig Matthildur","registered_at":"2026-06-14T16:34:12Z","symbol":"NIM0511668","token_address":"0x294a6ed9fd4547515d7ad66d2c2855f2fe2a2055","type":"artist","uuid":"73f4796c-efc7-478c-bdc1-9531d9e958bb"}
album: Unexplained Miseries & the Acceptance of Sorrow
  type: MusicAlbum
  date published: 2017-12-14
album: Unexplained Miseries & The Acceptance of Sorrow
  type: MusicAlbum
  date published: 2018-06-22
album: Affliction/Absolution
  type: MusicAlbum
  date published: 2018-08-11
album: Dystopian Boy
  type: MusicAlbum
  date published: 2018-11-16
album: Utopian Girl
  type: MusicAlbum
  date published: 2019-03-29
album: Constantly in Love
  type: MusicAlbum
  date published: 2019-04-05
album: Constantly in Love
  type: MusicAlbum
  date published: 2019-04-19
album: Constantly in Love
  type: MusicAlbum
  date published: 2019-04-19
album: Politician...Of Love
  type: MusicAlbum
  date published: 2020-04-17
album: Window
  type: MusicAlbum
  date published: 2020-06-19
album: Last Date
  type: MusicAlbum
  date published: 2020-08-07
album: Venus
  type: MusicAlbum
  date published: 2020-10-23
album: Venus
  type: MusicAlbum
  date published: 2020-10-23