Contakt
type: MusicGroup
description: Contakt is the fifth studio album by the Norwegian urban music duo Madcon. It was released on 21 June 2012. The album entered the Norwegian Albums Chart at number 18. This is the first album recorded
popularity: 3
followers: 90
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x93f6df358efd9ea8f800a6ea6133eaef3c70253d5fe421586e8b95507970ba94
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954043
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954043
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3fe47991-b847-4cd9-be05-10ccb9ea18c0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3fe47991-b847-4cd9-be05-10ccb9ea18c0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3fe47991-b847-4cd9-be05-10ccb9ea18c0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:15:20Z
additional property: OTSCanonicalRecord
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 0x93f6df358efd9ea8f800a6ea6133eaef3c70253d5fe421586e8b95507970ba94. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3fe47991-b847-4cd9-be05-10ccb9ea18c0.json and https://artists.proofprofile.net/proofs/artist/3fe47991-b847-4cd9-be05-10ccb9ea18c0.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T04:15:20Z
album: Contrast EP
  type: MusicAlbum
  date published: 2025-01-31