The Cats In The House
type: MusicGroup
genre: polka
popularity: 7
followers: 133
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc484952dacc051732159f1f554e45e035f58f56a0fa7c03a2345a0f2964777c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c741d72-7f40-4f29-8aff-f211460fd1c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c741d72-7f40-4f29-8aff-f211460fd1c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3c741d72-7f40-4f29-8aff-f211460fd1c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc484952dacc051732159f1f554e45e035f58f56a0fa7c03a2345a0f2964777c4","name":"The Cats In The House","registered_at":"2026-06-16T10:37:40Z","symbol":"NIM1025639","token_address":"0xe98644d7f37e0acbdde2bdb70ec6eb1fcd2ab2dc","type":"artist","uuid":"3c741d72-7f40-4f29-8aff-f211460fd1c7"}
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 0xc484952dacc051732159f1f554e45e035f58f56a0fa7c03a2345a0f2964777c4. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c741d72-7f40-4f29-8aff-f211460fd1c7.json and https://artists.proofprofile.net/proofs/artist/3c741d72-7f40-4f29-8aff-f211460fd1c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T02:39:28Z
  text: {"copyright_id":"0xc484952dacc051732159f1f554e45e035f58f56a0fa7c03a2345a0f2964777c4","name":"The Cats In The House","registered_at":"2026-06-16T10:37:40Z","symbol":"NIM1025639","token_address":"0xe98644d7f37e0acbdde2bdb70ec6eb1fcd2ab2dc","type":"artist","uuid":"3c741d72-7f40-4f29-8aff-f211460fd1c7"}
album: Schöne Zeit
  type: MusicAlbum
  date published: 2020-10-21
album: Mooie tied
  type: MusicAlbum
  date published: 2020-12-12