Marcus Lindberg
type: MusicGroup
description: Jan Marcus Lindberg (born 31 August 1980) is a Swedish former professional footballer. He won tree caps for the Sweden national team between 2001 and 2009. Coaching career After retiring, it was anno
popularity: 3
followers: 28
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7cdae68261b48bae2bb1ac626dc43f7b5f82226c0463d1150c1cac0f3974ce93
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4cfd9a45-cfc0-4396-988a-1cd4c5f756e9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4cfd9a45-cfc0-4396-988a-1cd4c5f756e9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4cfd9a45-cfc0-4396-988a-1cd4c5f756e9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7cdae68261b48bae2bb1ac626dc43f7b5f82226c0463d1150c1cac0f3974ce93","name":"Marcus Lindberg","registered_at":"2026-06-16T16:23:36Z","symbol":"NIM1108174","token_address":"0xbe56c0a54ea782b23d71af661f84f4c1cb86dd5a","type":"artist","uuid":"4cfd9a45-cfc0-4396-988a-1cd4c5f756e9"}
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 0x7cdae68261b48bae2bb1ac626dc43f7b5f82226c0463d1150c1cac0f3974ce93. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4cfd9a45-cfc0-4396-988a-1cd4c5f756e9.json and https://artists.proofprofile.net/proofs/artist/4cfd9a45-cfc0-4396-988a-1cd4c5f756e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x7cdae68261b48bae2bb1ac626dc43f7b5f82226c0463d1150c1cac0f3974ce93","name":"Marcus Lindberg","registered_at":"2026-06-16T16:23:36Z","symbol":"NIM1108174","token_address":"0xbe56c0a54ea782b23d71af661f84f4c1cb86dd5a","type":"artist","uuid":"4cfd9a45-cfc0-4396-988a-1cd4c5f756e9"}