REAL-WORLD USE CASES

PRACTICAL EXAMPLES

Explore real-world scenarios with complete command workflows. From legal contracts to blockchain marriages, see how Anubis Notary solves real problems.

01

Document Notarization for Legal Contracts

Law firm needs to notarize client contracts with blockchain timestamps

✓ Benefits

  • •Post-quantum secure (ML-DSA-87)
  • •Immutable blockchain timestamp
  • •Legal-grade proof of existence
  • •CNSA 2.0 compliant

▸ Workflow

# Sign the contract
anubis-notary sign contract.pdf -o contract.sig

# Create timestamped attestation
anubis-notary attest contract.pdf --receipt contract.receipt

# Anchor to Neo N3 blockchain
anubis-notary anchor neo contract.receipt

# Verify later
anubis-notary verify --sig contract.sig contract.pdf
anubis-notary check contract.receipt contract.pdf
02

Software Release Signing

Software company needs to sign release binaries for distribution

✓ Benefits

  • •Prevents tampering
  • •Verifiable authenticity
  • •Streaming support for large files
  • •Quantum-resistant signatures

▸ Workflow

# Initialize keystore
anubis-notary key init

# Sign release binary
anubis-notary sign myapp-v1.0.0.exe -o myapp-v1.0.0.sig

# Users verify authenticity
anubis-notary verify --sig myapp-v1.0.0.sig myapp-v1.0.0.exe

# For large ISOs (streaming)
anubis-notary stream sign large-iso.iso -o large-iso.sig
03

Academic Credential Verification

University issues verifiable digital diplomas

✓ Benefits

  • •Tamper-proof credentials
  • •Blockchain-anchored proof
  • •Instant verification
  • •No central authority needed

▸ Workflow

# Issue license-based credential
anubis-notary license issue \
  --product "Bachelor of Science - Computer Science" \
  --user "[email protected]" \
  --expiry "2099-12-31" \
  --features "honors,summa-cum-laude" \
  -o diploma.credential

# Anchor to blockchain
anubis-notary anchor neo diploma.credential

# Employers verify credential
anubis-notary license verify --license diploma.credential
04

Supply Chain Provenance

Pharmaceutical company tracks drug authenticity

✓ Benefits

  • •End-to-end traceability
  • •Prevents counterfeiting
  • •Low-cost anchoring (~$0.001/tx)
  • •Regulatory compliance

▸ Workflow

# Manufacturer signs batch
anubis-notary sign batch-12345.json -o batch-12345.sig

# Create attestation with metadata
anubis-notary attest batch-12345.json --receipt batch-12345.receipt

# Anchor to Neo N3
anubis-notary anchor neo anchor batch-12345.receipt

# Distributors verify at each step
anubis-notary verify --sig batch-12345.sig batch-12345.json
05

Multi-Party Escrow

Real estate transaction requiring 2-of-3 approval

✓ Benefits

  • •Trustless escrow
  • •Threshold governance
  • •Post-quantum secure
  • •Transparent audit trail

▸ Workflow

# Initialize 2-of-3 multisig
anubis-notary multisig init \
  --threshold 2 \
  --signers buyer.pub,seller.pub,escrow.pub \
  -o escrow.config

# Create proposal for fund release
anubis-notary multisig propose \
  --config escrow.config \
  --proposal-type release-funds \
  --data <transaction-hex> \
  -o proposal.bin

# Buyer signs
anubis-notary multisig sign --config escrow.config --proposal proposal.bin

# Escrow agent signs (threshold met)
anubis-notary multisig sign --config escrow.config --proposal proposal.bin

# Execute transaction
anubis-notary multisig execute --config escrow.config --proposal proposal.bin
06

Blockchain Marriage Contract

Couple wants legally binding blockchain marriage

✓ Benefits

  • •Immutable record
  • •NFT wedding rings
  • •Global/borderless
  • •Post-quantum secure
  • •Personal vows on-chain

▸ Workflow

# Initialize marriage document
anubis-notary marriage init \
  --template monogamy \
  --parties "Alice,Bob" \
  --jurisdiction "US-CA" \
  -o marriage.json

# Each party signs with vows
anubis-notary marriage sign marriage.json --party 0 --vows "I take thee..."
anubis-notary marriage sign marriage.json --party 1 --vows "With this ring..."

# Verify all signatures
anubis-notary marriage verify marriage.json

# Create on-chain marriage with NFT rings
anubis-notary marriage create marriage.json --network mainnet --mint-rings

# View NFT rings
anubis-notary marriage rings show 1000 --network mainnet
07

Confidential File Encryption

Journalist encrypts sensitive documents

✓ Benefits

  • •Post-quantum encryption (ML-KEM-1024)
  • •ChaCha20Poly1305 authenticated encryption
  • •Forward secrecy
  • •Memory-hard key derivation (Argon2id)

▸ Workflow

# Generate encryption keypair
anubis-notary private-batch keygen --out journalist

# Encrypt file
anubis-notary seal documents.pdf \
  --recipient journalist.mlkem.pub \
  --out documents.sealed

# Decrypt later
anubis-notary unseal documents.sealed \
  --secret-key journalist.mlkem.sec \
  --out documents-decrypted.pdf
08

Corporate Governance

Board of directors approves sensitive document

✓ Benefits

  • •Threshold governance
  • •Audit trail
  • •Regulatory compliance
  • •Post-quantum secure

▸ Workflow

# Initialize 3-of-5 multisig for board
anubis-notary multisig init \
  --threshold 3 \
  --signers director1.pub,director2.pub,director3.pub,director4.pub,director5.pub \
  -o board.config

# Create proposal
anubis-notary multisig propose \
  --config board.config \
  --proposal-type authorize-action \
  --data <document-hash> \
  -o proposal.bin

# Directors sign (need 3 signatures)
anubis-notary multisig sign --config board.config --proposal proposal.bin

# Execute when threshold met
anubis-notary multisig execute --config board.config --proposal proposal.bin

Use Case Categories

Privacy-Preserving Anchoring

  • •Multi-party escrow
  • •Corporate governance
  • •Dead man's switch (time-locked inheritance)
  • •Regulatory compliance
  • •Collaborative research

Blockchain Integration

  • •Document notarization
  • •Software release signing
  • •Academic credentials
  • •Supply chain provenance
  • •Marriage contracts
  • •Identity management (QSI)

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