Blockchain Arithmetic: Licensing

Release: Beta — core workflows available; some capabilities still maturing

Overview

Blockchain Arithmetic uses offline, machine-locked Ed25519 .lic files. There is no phone-home — validation is entirely local. There is no eval wheel; every download is a production build.

Property	Value
License prefix	`blockchain-license-v1`
Signature	Ed25519 (RFC 8032)
Machine binding	64-char hardware fingerprint in signed payload
Trial	30-day trial available via Resonix portal

Customer flow

Install the package (pip install blockchain_arithmetic)
Get machine code: python -m blockchain_arithmetic
Request trial at the Resonix portal — paste your machine code
Download blockchain_arithmetic.lic from your profile
Activate: python -m blockchain_arithmetic activate ~/blockchain_arithmetic.lic
Verify: python -m blockchain_arithmetic status

pip install blockchain_arithmetic
python -m blockchain_arithmetic
# Copy the 64-char machine code to the portal
 
python -m blockchain_arithmetic activate ~/Downloads/blockchain_arithmetic.lic
python -m blockchain_arithmetic status

License file location

After activation, the license is installed to the platform-specific path reported by python -m blockchain_arithmetic status. Re-activation overwrites the previous license on the same machine.

Renewal

Before expiry, request a renewed .lic from the portal with the same machine code. Commercial seat and site licenses follow annual subscription terms — contact Resonix sales for Enterprise and Embedded tiers.

Troubleshooting

Symptom	Fix
`LicenseError` / license failure on first API call	Run `python -m blockchain_arithmetic activate ...`
"Signature invalid"	Re-download `.lic` — do not edit the file
"Machine mismatch"	License was issued for a different machine code
"Expired"	Request a new seat file from the portal

See also SolvNum — the parent deterministic-arithmetic product line.

Integration Overview