Jānis Liepiņš
type: MusicGroup
description: Jānis Liepiņš may refer to: Jānis Liepiņš (painter) (1894–1964), Latvian painter Jānis Liepiņš (conductor) (born 1988), Latvian conductor
popularity: 20
followers: 41
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5a8d50596c9a05a96ae0c0bec4a89928ec7803bb1a55eac7019cc4e3ae8ba035
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953699
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953699
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/75b3bd63-52b6-438c-9c85-1871f16aaf4f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/75b3bd63-52b6-438c-9c85-1871f16aaf4f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/75b3bd63-52b6-438c-9c85-1871f16aaf4f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:00:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5a8d50596c9a05a96ae0c0bec4a89928ec7803bb1a55eac7019cc4e3ae8ba035","name":"Jānis Liepiņš","registered_at":"2026-06-14T16:45:06Z","symbol":"NIM0514269","token_address":"0xe33b74fb2b9e45f2d48ef34b25eb67000fb98f2a","type":"artist","uuid":"75b3bd63-52b6-438c-9c85-1871f16aaf4f"}
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 0x5a8d50596c9a05a96ae0c0bec4a89928ec7803bb1a55eac7019cc4e3ae8ba035. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75b3bd63-52b6-438c-9c85-1871f16aaf4f.json and https://artists.proofprofile.net/proofs/artist/75b3bd63-52b6-438c-9c85-1871f16aaf4f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:00:24Z
  text: {"copyright_id":"0x5a8d50596c9a05a96ae0c0bec4a89928ec7803bb1a55eac7019cc4e3ae8ba035","name":"Jānis Liepiņš","registered_at":"2026-06-14T16:45:06Z","symbol":"NIM0514269","token_address":"0xe33b74fb2b9e45f2d48ef34b25eb67000fb98f2a","type":"artist","uuid":"75b3bd63-52b6-438c-9c85-1871f16aaf4f"}
album: Humanity
  type: MusicAlbum
  date published: 2022-10-07