Riku Nieminen
type: MusicGroup
genre: finnish pop
description: thumb|200px|Nieminen in 2013 Riku Nieminen (born 5 May 1986) is a Finnish actor and dancer. He is best known for having appeared in the first five seasons of the sketch comedy television show Putous a
popularity: 9
followers: 51
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73670aca9b878ee0c5a21f056945780d103de556422bb66c422634513db333b6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953888
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953888
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0d5f769d-8baa-4693-8f9e-b20ea690d4bc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0d5f769d-8baa-4693-8f9e-b20ea690d4bc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0d5f769d-8baa-4693-8f9e-b20ea690d4bc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:55:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x73670aca9b878ee0c5a21f056945780d103de556422bb66c422634513db333b6","name":"Riku Nieminen","registered_at":"2026-06-15T18:11:51Z","symbol":"NIM0790316","token_address":"0x97fe9b3848045203a22fa3bcdb3f39df9b43e7b8","type":"artist","uuid":"0d5f769d-8baa-4693-8f9e-b20ea690d4bc"}
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 0x73670aca9b878ee0c5a21f056945780d103de556422bb66c422634513db333b6. Chain 2 (Bitcoin): anchored in block 953888 (2026-06-16T04:55:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d5f769d-8baa-4693-8f9e-b20ea690d4bc.json and https://artists.proofprofile.net/proofs/artist/0d5f769d-8baa-4693-8f9e-b20ea690d4bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T04:55:23Z
  text: {"copyright_id":"0x73670aca9b878ee0c5a21f056945780d103de556422bb66c422634513db333b6","name":"Riku Nieminen","registered_at":"2026-06-15T18:11:51Z","symbol":"NIM0790316","token_address":"0x97fe9b3848045203a22fa3bcdb3f39df9b43e7b8","type":"artist","uuid":"0d5f769d-8baa-4693-8f9e-b20ea690d4bc"}