Marie Lang
type: MusicGroup
description: Marie Lang (8 March 1858 – 14 October 1934) was an Austrian feminist, theosophist and publisher. Born in 1858 in Vienna, Lang was raised in a liberal, upper-middle-class home. After divorcing her firs
popularity: 19
followers: 1049
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4d174e8ce267e57c629f4d01db8c426ca9f96db63831809e1e826543223e07ba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953612
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953612
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1659116a-2bf7-4c23-b74e-dd08a0224002.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1659116a-2bf7-4c23-b74e-dd08a0224002.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1659116a-2bf7-4c23-b74e-dd08a0224002
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T08:22:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4d174e8ce267e57c629f4d01db8c426ca9f96db63831809e1e826543223e07ba","name":"Marie Lang","registered_at":"2026-06-14T06:49:00Z","symbol":"NIM0372045","token_address":"0xd73f5a9a1ac96a39fe5d971cbede21cb06d74fba","type":"artist","uuid":"1659116a-2bf7-4c23-b74e-dd08a0224002"}
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 0x4d174e8ce267e57c629f4d01db8c426ca9f96db63831809e1e826543223e07ba. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1659116a-2bf7-4c23-b74e-dd08a0224002.json and https://artists.proofprofile.net/proofs/artist/1659116a-2bf7-4c23-b74e-dd08a0224002.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T08:40:32Z
  text: {"copyright_id":"0x4d174e8ce267e57c629f4d01db8c426ca9f96db63831809e1e826543223e07ba","name":"Marie Lang","registered_at":"2026-06-14T06:49:00Z","symbol":"NIM0372045","token_address":"0xd73f5a9a1ac96a39fe5d971cbede21cb06d74fba","type":"artist","uuid":"1659116a-2bf7-4c23-b74e-dd08a0224002"}
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