Emma Cronfelt
type: MusicGroup
popularity: 2
followers: 54
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa9dd7bde9daa00778946960348bd976e52cf6053a3a3e41ec2b9dbe97c9d68d4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954689
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954689
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e2a9fa33-a61a-4906-a450-1a553749663a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e2a9fa33-a61a-4906-a450-1a553749663a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e2a9fa33-a61a-4906-a450-1a553749663a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa9dd7bde9daa00778946960348bd976e52cf6053a3a3e41ec2b9dbe97c9d68d4","name":"Emma Cronfelt","registered_at":"2026-06-21T07:05:54Z","symbol":"NIM1856955","token_address":"0x735514346bf55db9eb962984f5b7aa567604e1bb","type":"artist","uuid":"e2a9fa33-a61a-4906-a450-1a553749663a"}
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 0xa9dd7bde9daa00778946960348bd976e52cf6053a3a3e41ec2b9dbe97c9d68d4. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2a9fa33-a61a-4906-a450-1a553749663a.json and https://artists.proofprofile.net/proofs/artist/e2a9fa33-a61a-4906-a450-1a553749663a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T10:35:31Z
  text: {"copyright_id":"0xa9dd7bde9daa00778946960348bd976e52cf6053a3a3e41ec2b9dbe97c9d68d4","name":"Emma Cronfelt","registered_at":"2026-06-21T07:05:54Z","symbol":"NIM1856955","token_address":"0x735514346bf55db9eb962984f5b7aa567604e1bb","type":"artist","uuid":"e2a9fa33-a61a-4906-a450-1a553749663a"}
album: Til Ungdommen
  type: MusicAlbum
  date published: 2022-07-22
album: Neil Young
  type: MusicAlbum
  date published: 2022-11-11