Indrek Hirv
type: MusicGroup
description: Indrek Hirv (born 15 December 1956 in Kohila) is an Estonian poet, translator and artist. In 1981 he graduated from State Art Institute of the Estonian SSR, studied ceramics. In 1988 he established
popularity: 3
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e1723f8e6797f087db2aab45cd850446fe42b4b38d2d3d09d9b4258b0da2541
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ff8e348a-85e8-4cb7-9a63-4839fac1efb4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ff8e348a-85e8-4cb7-9a63-4839fac1efb4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ff8e348a-85e8-4cb7-9a63-4839fac1efb4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0e1723f8e6797f087db2aab45cd850446fe42b4b38d2d3d09d9b4258b0da2541","name":"Indrek Hirv","registered_at":"2026-06-21T18:58:34Z","symbol":"NIM2006051","token_address":"0x54e9ae9ffa63c34a39888f17e9f6c27da9ec3fe8","type":"artist","uuid":"ff8e348a-85e8-4cb7-9a63-4839fac1efb4"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1723f8e6797f087db2aab45cd850446fe42b4b38d2d3d09d9b4258b0da2541. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff8e348a-85e8-4cb7-9a63-4839fac1efb4.json and https://artists.proofprofile.net/proofs/artist/ff8e348a-85e8-4cb7-9a63-4839fac1efb4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x0e1723f8e6797f087db2aab45cd850446fe42b4b38d2d3d09d9b4258b0da2541","name":"Indrek Hirv","registered_at":"2026-06-21T18:58:34Z","symbol":"NIM2006051","token_address":"0x54e9ae9ffa63c34a39888f17e9f6c27da9ec3fe8","type":"artist","uuid":"ff8e348a-85e8-4cb7-9a63-4839fac1efb4"}