Svein Magnus Furu
type: MusicGroup
description: Svein Magnus Furu (born 10 November 1983) is a Norwegian Jazz musician (saxophone) composer and music journalist, known from several bands and album releases. Career Furu was born in Asker and is a
popularity: 3
followers: 59
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1729c8d5fe88e55dec3a5c85eb52110bf6121b7bc6de5ebca721d024489c2a56
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a00f6caf-8cca-4b18-b324-88939e6dc833.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a00f6caf-8cca-4b18-b324-88939e6dc833.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a00f6caf-8cca-4b18-b324-88939e6dc833
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1729c8d5fe88e55dec3a5c85eb52110bf6121b7bc6de5ebca721d024489c2a56","name":"Svein Magnus Furu","registered_at":"2026-06-20T05:02:19Z","symbol":"NIM1523856","token_address":"0xe2a8bfc2e7748a81e091cc7e8f2b1785e6c83444","type":"artist","uuid":"a00f6caf-8cca-4b18-b324-88939e6dc833"}
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 0x1729c8d5fe88e55dec3a5c85eb52110bf6121b7bc6de5ebca721d024489c2a56. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a00f6caf-8cca-4b18-b324-88939e6dc833.json and https://artists.proofprofile.net/proofs/artist/a00f6caf-8cca-4b18-b324-88939e6dc833.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0x1729c8d5fe88e55dec3a5c85eb52110bf6121b7bc6de5ebca721d024489c2a56","name":"Svein Magnus Furu","registered_at":"2026-06-20T05:02:19Z","symbol":"NIM1523856","token_address":"0xe2a8bfc2e7748a81e091cc7e8f2b1785e6c83444","type":"artist","uuid":"a00f6caf-8cca-4b18-b324-88939e6dc833"}