Peter Lindroos
type: MusicGroup
genre: opera
description: Paul Peter Christer Lindroos (26 February 1944 – 17 November 2003) was a Finnish opera singer who appeared in leading tenor roles throughout Europe but was particularly associated with the Finnish Nat
popularity: 12
followers: 195
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6f998d6087668872e81b5be83f7b4e30644f2836bf50589558bf8a7d0b173bfc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953592
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953592
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/06a076d7-ff1f-4138-84fd-224ca8b799e9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/06a076d7-ff1f-4138-84fd-224ca8b799e9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/06a076d7-ff1f-4138-84fd-224ca8b799e9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T05:36:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6f998d6087668872e81b5be83f7b4e30644f2836bf50589558bf8a7d0b173bfc","name":"Peter Lindroos","registered_at":"2026-06-14T05:07:40Z","symbol":"NIM0347910","token_address":"0x0ab185b672c1ade63c6ba90d79601f1e82b4a6b0","type":"artist","uuid":"06a076d7-ff1f-4138-84fd-224ca8b799e9"}
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 0x6f998d6087668872e81b5be83f7b4e30644f2836bf50589558bf8a7d0b173bfc. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06a076d7-ff1f-4138-84fd-224ca8b799e9.json and https://artists.proofprofile.net/proofs/artist/06a076d7-ff1f-4138-84fd-224ca8b799e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T05:36:59Z
  text: {"copyright_id":"0x6f998d6087668872e81b5be83f7b4e30644f2836bf50589558bf8a7d0b173bfc","name":"Peter Lindroos","registered_at":"2026-06-14T05:07:40Z","symbol":"NIM0347910","token_address":"0x0ab185b672c1ade63c6ba90d79601f1e82b4a6b0","type":"artist","uuid":"06a076d7-ff1f-4138-84fd-224ca8b799e9"}
album: Nielsen: Saul & David
  type: MusicAlbum
  date published: 1990-10-01
album: Kosketa minua, Henki - Mika Piiparisen lauluja
  type: MusicAlbum
  date published: 1980