Magnum Bonum
type: MusicGroup
description: Magnum Bonum was a pop group from Huddinge in Sweden, scoring several chart successes in Sweden during the 1970s and 80's. Famous songs are Skateboard (LA Run), Marie, Lover Boy, Vi vill ha mer, Hög h
popularity: 2
followers: 8
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb04cc76d1c8fa90e47e29b727396c0c31f82e03f3496b20d5a1ffb8c56b3c666
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9426811a-2360-4236-beaf-c0ff8072eefe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9426811a-2360-4236-beaf-c0ff8072eefe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9426811a-2360-4236-beaf-c0ff8072eefe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb04cc76d1c8fa90e47e29b727396c0c31f82e03f3496b20d5a1ffb8c56b3c666","name":"Magnum Bonum","registered_at":"2026-06-17T17:23:16Z","symbol":"NIM1465870","token_address":"0xa3cafbf8ea29eb68461cd502382f2d1dbc118a38","type":"artist","uuid":"9426811a-2360-4236-beaf-c0ff8072eefe"}
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 0xb04cc76d1c8fa90e47e29b727396c0c31f82e03f3496b20d5a1ffb8c56b3c666. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9426811a-2360-4236-beaf-c0ff8072eefe.json and https://artists.proofprofile.net/proofs/artist/9426811a-2360-4236-beaf-c0ff8072eefe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xb04cc76d1c8fa90e47e29b727396c0c31f82e03f3496b20d5a1ffb8c56b3c666","name":"Magnum Bonum","registered_at":"2026-06-17T17:23:16Z","symbol":"NIM1465870","token_address":"0xa3cafbf8ea29eb68461cd502382f2d1dbc118a38","type":"artist","uuid":"9426811a-2360-4236-beaf-c0ff8072eefe"}