Jan Uuspõld
type: MusicGroup
description: Jan Uuspõld (born 14 December 1973)Uuspõld.ee Retrieved 7 May 2016. is an Estonian stage, television, radio and film actor and musician. Early life and music career Jan Uuspõld was born in Tallinn, t
popularity: 4
followers: 5
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c2357553579b0fb5d20ccba422f558944449350d7dc49f2e76516cd73ef3fd2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c1530e53-2ec4-4dce-8b90-6010ef69dbde.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c1530e53-2ec4-4dce-8b90-6010ef69dbde.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c1530e53-2ec4-4dce-8b90-6010ef69dbde
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7c2357553579b0fb5d20ccba422f558944449350d7dc49f2e76516cd73ef3fd2","name":"Jan Uuspõld","registered_at":"2026-06-20T19:38:54Z","symbol":"NIM1693088","token_address":"0x1daa55cdf9cf87ab8ba594f3a8849371bc017a80","type":"artist","uuid":"c1530e53-2ec4-4dce-8b90-6010ef69dbde"}
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 0x7c2357553579b0fb5d20ccba422f558944449350d7dc49f2e76516cd73ef3fd2. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1530e53-2ec4-4dce-8b90-6010ef69dbde.json and https://artists.proofprofile.net/proofs/artist/c1530e53-2ec4-4dce-8b90-6010ef69dbde.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x7c2357553579b0fb5d20ccba422f558944449350d7dc49f2e76516cd73ef3fd2","name":"Jan Uuspõld","registered_at":"2026-06-20T19:38:54Z","symbol":"NIM1693088","token_address":"0x1daa55cdf9cf87ab8ba594f3a8849371bc017a80","type":"artist","uuid":"c1530e53-2ec4-4dce-8b90-6010ef69dbde"}