Maria Stephan
type: MusicGroup
genre: christian
genre: devotional
genre: malayalam pop
description: Maria J. Stephan is an American political scientist. She is co-lead and chief organizer with the Horizons Project. Previously, she was the director of the program on nonviolent action at the United St
popularity: 7
followers: 712
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb70ba2c6cc648756031f9f106c783aaab3610147b22db578d2e96c51ff945b6d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ffbeb150-272d-4e89-8cd1-4ca5dbeb28ba.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ffbeb150-272d-4e89-8cd1-4ca5dbeb28ba.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ffbeb150-272d-4e89-8cd1-4ca5dbeb28ba
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb70ba2c6cc648756031f9f106c783aaab3610147b22db578d2e96c51ff945b6d","name":"Maria Stephan","registered_at":"2026-06-21T18:48:03Z","symbol":"NIM2003903","token_address":"0x0d8ee2becfae1ad4ef8324b113543c1cedee8dbe","type":"artist","uuid":"ffbeb150-272d-4e89-8cd1-4ca5dbeb28ba"}
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 0xb70ba2c6cc648756031f9f106c783aaab3610147b22db578d2e96c51ff945b6d. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffbeb150-272d-4e89-8cd1-4ca5dbeb28ba.json and https://artists.proofprofile.net/proofs/artist/ffbeb150-272d-4e89-8cd1-4ca5dbeb28ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xb70ba2c6cc648756031f9f106c783aaab3610147b22db578d2e96c51ff945b6d","name":"Maria Stephan","registered_at":"2026-06-21T18:48:03Z","symbol":"NIM2003903","token_address":"0x0d8ee2becfae1ad4ef8324b113543c1cedee8dbe","type":"artist","uuid":"ffbeb150-272d-4e89-8cd1-4ca5dbeb28ba"}