Saskia Lammers
type: MusicGroup
popularity: 8
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa99ac89340595ec123bd28c2c5290b58cdd0ae9417930ddb87576ba0b08f117
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954031
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954031
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/399e14c5-bcec-4322-9456-1eb306b7e565.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/399e14c5-bcec-4322-9456-1eb306b7e565.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/399e14c5-bcec-4322-9456-1eb306b7e565
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:43:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfa99ac89340595ec123bd28c2c5290b58cdd0ae9417930ddb87576ba0b08f117","name":"Saskia Lammers","registered_at":"2026-06-16T09:59:15Z","symbol":"NIM1016478","token_address":"0x09cdfe60e305448469d4030c5c105b420852ec00","type":"artist","uuid":"399e14c5-bcec-4322-9456-1eb306b7e565"}
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 0xfa99ac89340595ec123bd28c2c5290b58cdd0ae9417930ddb87576ba0b08f117. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/399e14c5-bcec-4322-9456-1eb306b7e565.json and https://artists.proofprofile.net/proofs/artist/399e14c5-bcec-4322-9456-1eb306b7e565.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T01:43:23Z
  text: {"copyright_id":"0xfa99ac89340595ec123bd28c2c5290b58cdd0ae9417930ddb87576ba0b08f117","name":"Saskia Lammers","registered_at":"2026-06-16T09:59:15Z","symbol":"NIM1016478","token_address":"0x09cdfe60e305448469d4030c5c105b420852ec00","type":"artist","uuid":"399e14c5-bcec-4322-9456-1eb306b7e565"}