Solfrid Brekkå
type: MusicGroup
popularity: 5
followers: 62
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xacb935d19c85119388261bba58d5e9ad8ad82d82da5bfcb89ad798e6bfc0c4b0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/290e68e4-dcd6-4620-8362-e40e6d9db255.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/290e68e4-dcd6-4620-8362-e40e6d9db255.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/290e68e4-dcd6-4620-8362-e40e6d9db255
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xacb935d19c85119388261bba58d5e9ad8ad82d82da5bfcb89ad798e6bfc0c4b0","name":"Solfrid Brekkå","registered_at":"2026-06-16T03:50:10Z","symbol":"NIM0928335","token_address":"0xd87c35a243ed5d125cd594448b85aa201e44cca9","type":"artist","uuid":"290e68e4-dcd6-4620-8362-e40e6d9db255"}
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 0xacb935d19c85119388261bba58d5e9ad8ad82d82da5bfcb89ad798e6bfc0c4b0. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/290e68e4-dcd6-4620-8362-e40e6d9db255.json and https://artists.proofprofile.net/proofs/artist/290e68e4-dcd6-4620-8362-e40e6d9db255.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:01:49Z
  text: {"copyright_id":"0xacb935d19c85119388261bba58d5e9ad8ad82d82da5bfcb89ad798e6bfc0c4b0","name":"Solfrid Brekkå","registered_at":"2026-06-16T03:50:10Z","symbol":"NIM0928335","token_address":"0xd87c35a243ed5d125cd594448b85aa201e44cca9","type":"artist","uuid":"290e68e4-dcd6-4620-8362-e40e6d9db255"}
album: Christmas Makes Me Cry
  type: MusicAlbum
  date published: 2021-12-17
album: O Holy Night
  type: MusicAlbum
  date published: 2022-11-04