Samuel Kummer
type: MusicGroup
description: Samuel Kummer (28 February 1968 – 23 April 2024) was a German organist, from 2005 to 2022 at the Frauenkirche in Dresden. When he took the position at the restored church, destroyed by bombing in Worl
popularity: 2
followers: 154
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe100d4837ff727959a2b772b18c8d88a41f129ea18082a2330bb485cd5b9fb3e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f0da5f68-a318-49ba-a928-308917f209e7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f0da5f68-a318-49ba-a928-308917f209e7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f0da5f68-a318-49ba-a928-308917f209e7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe100d4837ff727959a2b772b18c8d88a41f129ea18082a2330bb485cd5b9fb3e","name":"Samuel Kummer","registered_at":"2026-06-21T13:02:18Z","symbol":"NIM1930617","token_address":"0x00955028cac36539d13b30c00cc242dc8dee331a","type":"artist","uuid":"f0da5f68-a318-49ba-a928-308917f209e7"}
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 0xe100d4837ff727959a2b772b18c8d88a41f129ea18082a2330bb485cd5b9fb3e. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0da5f68-a318-49ba-a928-308917f209e7.json and https://artists.proofprofile.net/proofs/artist/f0da5f68-a318-49ba-a928-308917f209e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0xe100d4837ff727959a2b772b18c8d88a41f129ea18082a2330bb485cd5b9fb3e","name":"Samuel Kummer","registered_at":"2026-06-21T13:02:18Z","symbol":"NIM1930617","token_address":"0x00955028cac36539d13b30c00cc242dc8dee331a","type":"artist","uuid":"f0da5f68-a318-49ba-a928-308917f209e7"}
album: 300 Jahre Silbermann-Orgel in Großkmehlen
  type: MusicAlbum
  date published: 2024-02-24