Jakob Schwerdtfeger
type: MusicGroup
popularity: 5
followers: 246
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1cb7ee43437566ddaec9105031db1911a452a1ab5616a261b28bbf3b8cfd6241
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953958
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953958
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/270f8556-b75e-4016-a151-a9b4b7aa8dde.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/270f8556-b75e-4016-a151-a9b4b7aa8dde.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/270f8556-b75e-4016-a151-a9b4b7aa8dde
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:52:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1cb7ee43437566ddaec9105031db1911a452a1ab5616a261b28bbf3b8cfd6241","name":"Jakob Schwerdtfeger","registered_at":"2026-06-16T03:07:19Z","symbol":"NIM0918106","token_address":"0x5286c3d8f2781262171784da0e8ccdbe9253d7f8","type":"artist","uuid":"270f8556-b75e-4016-a151-a9b4b7aa8dde"}
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 0x1cb7ee43437566ddaec9105031db1911a452a1ab5616a261b28bbf3b8cfd6241. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/270f8556-b75e-4016-a151-a9b4b7aa8dde.json and https://artists.proofprofile.net/proofs/artist/270f8556-b75e-4016-a151-a9b4b7aa8dde.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x1cb7ee43437566ddaec9105031db1911a452a1ab5616a261b28bbf3b8cfd6241","name":"Jakob Schwerdtfeger","registered_at":"2026-06-16T03:07:19Z","symbol":"NIM0918106","token_address":"0x5286c3d8f2781262171784da0e8ccdbe9253d7f8","type":"artist","uuid":"270f8556-b75e-4016-a151-a9b4b7aa8dde"}
album: Dostojewski
  type: MusicAlbum
  date published: 2020-10-09
album: Ich sehe was, was du nicht siehst, und das ist Kunst (vom Erfinder der Kunstcomedy @jakob.schwerdtfeger)
  type: MusicAlbum
  date published: 2023-09-14