Svanfríður
type: MusicGroup
genre: krautrock
genre: progressive rock
popularity: 2
followers: 344
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xccdf7a202de392b5b70a8251fe882dcbc7ad05a26fb61f2e3954b0ceb72f084c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ebd95ef3-b169-4b7a-b262-100bdb029ea3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ebd95ef3-b169-4b7a-b262-100bdb029ea3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ebd95ef3-b169-4b7a-b262-100bdb029ea3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xccdf7a202de392b5b70a8251fe882dcbc7ad05a26fb61f2e3954b0ceb72f084c","name":"Svanfríður","registered_at":"2026-06-21T11:09:09Z","symbol":"NIM1904058","token_address":"0xee85d36c7a4b7ded25a5d44494b03f8e86422b9f","type":"artist","uuid":"ebd95ef3-b169-4b7a-b262-100bdb029ea3"}
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 0xccdf7a202de392b5b70a8251fe882dcbc7ad05a26fb61f2e3954b0ceb72f084c. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ebd95ef3-b169-4b7a-b262-100bdb029ea3.json and https://artists.proofprofile.net/proofs/artist/ebd95ef3-b169-4b7a-b262-100bdb029ea3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0xccdf7a202de392b5b70a8251fe882dcbc7ad05a26fb61f2e3954b0ceb72f084c","name":"Svanfríður","registered_at":"2026-06-21T11:09:09Z","symbol":"NIM1904058","token_address":"0xee85d36c7a4b7ded25a5d44494b03f8e86422b9f","type":"artist","uuid":"ebd95ef3-b169-4b7a-b262-100bdb029ea3"}
album: What's Hidden There?
  type: MusicAlbum
  date published: 1972-01-01
album: What's Hidden There?
  type: MusicAlbum
  date published: 1972-01-01