Jan Schumacher
type: MusicGroup
popularity: 13
followers: 94
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9b941f115f46e64155081983d2e1b28a82bab3342e3ef2b31dbfcb2f0e6524ef
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953759
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953759
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2a26a95-a0fc-4627-ac4a-e10ca41a1814.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2a26a95-a0fc-4627-ac4a-e10ca41a1814.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b2a26a95-a0fc-4627-ac4a-e10ca41a1814
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T08:04:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9b941f115f46e64155081983d2e1b28a82bab3342e3ef2b31dbfcb2f0e6524ef","name":"Jan Schumacher","registered_at":"2026-06-14T23:10:54Z","symbol":"NIM0606258","token_address":"0xe38e1304818ef80ad2bb20d7ef1ef6f25b8aa671","type":"artist","uuid":"b2a26a95-a0fc-4627-ac4a-e10ca41a1814"}
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 0x9b941f115f46e64155081983d2e1b28a82bab3342e3ef2b31dbfcb2f0e6524ef. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2a26a95-a0fc-4627-ac4a-e10ca41a1814.json and https://artists.proofprofile.net/proofs/artist/b2a26a95-a0fc-4627-ac4a-e10ca41a1814.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T08:04:42Z
  text: {"copyright_id":"0x9b941f115f46e64155081983d2e1b28a82bab3342e3ef2b31dbfcb2f0e6524ef","name":"Jan Schumacher","registered_at":"2026-06-14T23:10:54Z","symbol":"NIM0606258","token_address":"0xe38e1304818ef80ad2bb20d7ef1ef6f25b8aa671","type":"artist","uuid":"b2a26a95-a0fc-4627-ac4a-e10ca41a1814"}
album: Schubert: Sehnsucht – The Complete Choral Works for Male Voices, Vol. 1
  type: MusicAlbum
  date published: 2015-05-05