Esther Lo
type: MusicGroup
popularity: 2
followers: 31
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe26d21e39778072bd62159a85854788792d74e62bf9ace5fe9dd199610d847ef
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/eec25c5b-711d-4a80-a734-3ed6a78427c4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eec25c5b-711d-4a80-a734-3ed6a78427c4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/eec25c5b-711d-4a80-a734-3ed6a78427c4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe26d21e39778072bd62159a85854788792d74e62bf9ace5fe9dd199610d847ef","name":"Esther Lo","registered_at":"2026-06-21T12:22:45Z","symbol":"NIM1918410","token_address":"0xf5b3ce3684a5ec1a6f5b116fe3d618661a9fb1a6","type":"artist","uuid":"eec25c5b-711d-4a80-a734-3ed6a78427c4"}
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 0xe26d21e39778072bd62159a85854788792d74e62bf9ace5fe9dd199610d847ef. 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/eec25c5b-711d-4a80-a734-3ed6a78427c4.json and https://artists.proofprofile.net/proofs/artist/eec25c5b-711d-4a80-a734-3ed6a78427c4.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0xe26d21e39778072bd62159a85854788792d74e62bf9ace5fe9dd199610d847ef","name":"Esther Lo","registered_at":"2026-06-21T12:22:45Z","symbol":"NIM1918410","token_address":"0xf5b3ce3684a5ec1a6f5b116fe3d618661a9fb1a6","type":"artist","uuid":"eec25c5b-711d-4a80-a734-3ed6a78427c4"}