Sofia & Hanna Corneskog
type: MusicGroup
genre: children's music
popularity: 12
followers: 170
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa62570c5ed2af4d61cb30623d58d14c1a467df44119478fcceaf81f70380a9b8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953674
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953674
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5d559516-8717-4630-86cf-3f50953d4372.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5d559516-8717-4630-86cf-3f50953d4372.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5d559516-8717-4630-86cf-3f50953d4372
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:07:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa62570c5ed2af4d61cb30623d58d14c1a467df44119478fcceaf81f70380a9b8","name":"Sofia & Hanna Corneskog","registered_at":"2026-06-14T14:15:47Z","symbol":"NIM0478629","token_address":"0xaa5b3f02d650c023e89a2b6340e41934ba9aa6ab","type":"artist","uuid":"5d559516-8717-4630-86cf-3f50953d4372"}
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 0xa62570c5ed2af4d61cb30623d58d14c1a467df44119478fcceaf81f70380a9b8. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d559516-8717-4630-86cf-3f50953d4372.json and https://artists.proofprofile.net/proofs/artist/5d559516-8717-4630-86cf-3f50953d4372.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T19:07:16Z
  text: {"copyright_id":"0xa62570c5ed2af4d61cb30623d58d14c1a467df44119478fcceaf81f70380a9b8","name":"Sofia & Hanna Corneskog","registered_at":"2026-06-14T14:15:47Z","symbol":"NIM0478629","token_address":"0xaa5b3f02d650c023e89a2b6340e41934ba9aa6ab","type":"artist","uuid":"5d559516-8717-4630-86cf-3f50953d4372"}