Katha-O
type: MusicGroup
genre: children's music
popularity: 3
followers: 292
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x034515e512fcfd0421357750390275e1b51a2e0eb46e5fa02bbfd85571b5da54
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9de927b4-6ce6-46fd-9f30-bb5fe157477c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9de927b4-6ce6-46fd-9f30-bb5fe157477c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9de927b4-6ce6-46fd-9f30-bb5fe157477c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034515e512fcfd0421357750390275e1b51a2e0eb46e5fa02bbfd85571b5da54. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9de927b4-6ce6-46fd-9f30-bb5fe157477c.json and https://artists.proofprofile.net/proofs/artist/9de927b4-6ce6-46fd-9f30-bb5fe157477c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
album: Schokolade
  type: MusicAlbum
  date published: 2020-06-27
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  type: MusicAlbum
  date published: 2021-01-13
album: Sei wie Sie
  type: MusicAlbum
  date published: 2021-02-09
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  type: MusicAlbum
  date published: 2021-07-01
album: Freundin
  type: MusicAlbum
  date published: 2021-07-23
album: Playlist
  type: MusicAlbum
  date published: 2021-11-05
album: Schatten
  type: MusicAlbum
  date published: 2022-01-29
album: Love It
  type: MusicAlbum
  date published: 2022-12-09