Anna und Lukas
type: MusicGroup
popularity: 5
followers: 91
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd7dd86d9886a72371760db08c76d4fd0d610eaeb8d822bb683020be542fdd009
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cf0909aa-0405-486a-b2e9-9dfd42a5aed1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cf0909aa-0405-486a-b2e9-9dfd42a5aed1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cf0909aa-0405-486a-b2e9-9dfd42a5aed1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd7dd86d9886a72371760db08c76d4fd0d610eaeb8d822bb683020be542fdd009","name":"Anna und Lukas","registered_at":"2026-06-21T00:24:04Z","symbol":"NIM1762307","token_address":"0x8099aed752ab8a55176c1b7af5ff37b5dab94776","type":"artist","uuid":"cf0909aa-0405-486a-b2e9-9dfd42a5aed1"}
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 0xd7dd86d9886a72371760db08c76d4fd0d610eaeb8d822bb683020be542fdd009. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf0909aa-0405-486a-b2e9-9dfd42a5aed1.json and https://artists.proofprofile.net/proofs/artist/cf0909aa-0405-486a-b2e9-9dfd42a5aed1.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0xd7dd86d9886a72371760db08c76d4fd0d610eaeb8d822bb683020be542fdd009","name":"Anna und Lukas","registered_at":"2026-06-21T00:24:04Z","symbol":"NIM1762307","token_address":"0x8099aed752ab8a55176c1b7af5ff37b5dab94776","type":"artist","uuid":"cf0909aa-0405-486a-b2e9-9dfd42a5aed1"}
album: Anna kommt in den Kindergarten - Folge 1
  type: MusicAlbum
  date published: 2000-09-15