Katrin Sass
type: MusicGroup
description: Katrin Sass (, for a time Katrin Saß) is a German actress. She became known internationally for playing the idealistic socialist mother Christiane Kerner in the 2003 tragicomedy Good Bye, Lenin! Bi
popularity: 8
followers: 855
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704674cf54b714111706c45222b79f275ef18c019c4a3c8bbc441b91cfde798b. Chain 2 (Bitcoin): anchored in block 953985 (2026-06-16T18:03:53Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d35e3ba-5d09-41fb-aed4-b784b96aabab.json and https://artists.proofprofile.net/proofs/artist/2d35e3ba-5d09-41fb-aed4-b784b96aabab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T18:03:53Z
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album: Königskinder
  type: MusicAlbum
  date published: 2013-05-17
  track: Was rettet die Welt
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    duration: PT2M19S
    duration ms: 139013
    explicit: false
    by artist: Katrin Sass
    in album: Königskinder
      type: MusicAlbum
      date published: 2013-05-17
    isrc code: DEH841300103
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771a0a4ab03cb86a2651127b631b72d674a96db970c6cb241b59d280dffed2ae. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEH841300103.
      date published: 2026-07-19T00:54:50Z
    audio: Was rettet die Welt
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.197
      additional property: Musical Key
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        value: 2
      additional property: Mode (Major/Minor)
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        value: 1
      additional property: Time Signature
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        value: 4
      additional property: Danceability
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      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
        value: 0.072
      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.414
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Am Wasser
  type: MusicAlbum
  date published: 2023-04-28
album: Am Wasser
  type: MusicAlbum
  date published: 2023-04-28