Gustav Lange
type: MusicGroup
description: thumb|Image of Gustav Lange Gustav Lange (13 August 1830 – 20 July 1889) was a German composer known mainly for his melodious salon music for the piano. Life Lange was born in Schwerstedt, near Erfur
popularity: 16
followers: 26
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcb66b9c5352eca7aad3043ed79eeba6540cd1ec57ba654aeb000ad102fbc9ca5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3b7ad070-7e8b-48d3-a8db-e796013a4696.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3b7ad070-7e8b-48d3-a8db-e796013a4696.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3b7ad070-7e8b-48d3-a8db-e796013a4696
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcb66b9c5352eca7aad3043ed79eeba6540cd1ec57ba654aeb000ad102fbc9ca5","name":"Gustav Lange","registered_at":"2026-06-14T10:40:30Z","symbol":"NIM0427268","token_address":"0x0cf0fe21fd1bebe371b943c627ebd922b36c9c87","type":"artist","uuid":"3b7ad070-7e8b-48d3-a8db-e796013a4696"}
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 0xcb66b9c5352eca7aad3043ed79eeba6540cd1ec57ba654aeb000ad102fbc9ca5. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3b7ad070-7e8b-48d3-a8db-e796013a4696.json and https://artists.proofprofile.net/proofs/artist/3b7ad070-7e8b-48d3-a8db-e796013a4696.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0xcb66b9c5352eca7aad3043ed79eeba6540cd1ec57ba654aeb000ad102fbc9ca5","name":"Gustav Lange","registered_at":"2026-06-14T10:40:30Z","symbol":"NIM0427268","token_address":"0x0cf0fe21fd1bebe371b943c627ebd922b36c9c87","type":"artist","uuid":"3b7ad070-7e8b-48d3-a8db-e796013a4696"}