A Verified 3-Tier Chain
One signed qbeacon ledger, three device classes, chained and independently re-verifiable — 2026-08-20
One chain, three device classes
A live ANU QRNG relay pulse, an IBM quantum-hardware CHSH Bell-test pulse and a CVQC (Mahadev) pulse, chained
into one signed, append-only ledger and verified end-to-end. Pulse #1 ran on ibm_marrakesh.
Ledger identity
Per-pulse verification (independently recomputed, not self-reported)
| # | Device | S | p-value | Entropy (bits) | Status |
|---|---|---|---|---|---|
| 0 | anu_qrng_relay | +0.0000 | 1.00e+00 | 0 | OK |
| 1 | ibm_marrakesh (real hardware) | +2.7504 | 1.42e-46 | 142 | OK |
| 2 | cvqc_mahadev | +2.8914 | 7.17e-67 | 485 | OK |
3/3 verified. Total certified min-entropy across verified pulses: 626 bits (i.i.d. device model).
Quantum hardware
Verify it yourself
This standalone verifier needs nothing beyond this bundle and Python's standard library plus
cryptography — download and run:
curl -s https://qbeacon.ca/historical/pubkey.pem -o pubkey.pem curl -s https://qbeacon.ca/historical/pulses.jsonl -o pulses.jsonl curl -s https://qbeacon.ca/historical/verify.py -o verify.py python3 verify.py pulses.jsonl pubkey.pem 6544eef49dd317fc97be0ee46355f4f40676e6dccd2be30762d3a8d31e236efd
The standalone verifier checks every pulse's signature, chain link and commitment, and recomputes the relay and CHSH results for pulses #0 and #1. Pulse #2's CVQC proof is checked with the protocol's verifier-only key.