Ausklang
type: MusicGroup
genre: post-rock
description: Ausklang (German for 'concluding sound') is a work for piano and orchestra composed by Helmut Lachenmann in 1984/1985. __NOTOC__ History It is a commission by the Westdeutscher Rundfunk. Lachenmann
popularity: 10
followers: 696
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x45a5108bf4dff30d1b5ca201863fd7fd37d5a8459d6bba95c412397bfc04b173
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954047
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954047
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41c69d56-0e41-4b57-8d48-5aaa7bb7ed3f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41c69d56-0e41-4b57-8d48-5aaa7bb7ed3f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/41c69d56-0e41-4b57-8d48-5aaa7bb7ed3f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:56:08Z
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 0x45a5108bf4dff30d1b5ca201863fd7fd37d5a8459d6bba95c412397bfc04b173. Chain 2 (Bitcoin): anchored in block 954047 (2026-06-17T04:56:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41c69d56-0e41-4b57-8d48-5aaa7bb7ed3f.json and https://artists.proofprofile.net/proofs/artist/41c69d56-0e41-4b57-8d48-5aaa7bb7ed3f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T04:56:08Z
album: Chronos
  type: MusicAlbum
  date published: 2020-10-18
album: Resonanz (Live)
  type: MusicAlbum
  date published: 2020-12-11
album: Kairos
  type: MusicAlbum
  date published: 2024-08-30