Keystone-Lattice

Every other receipt is signed by a company. Keystone-Lattice Receipt is signed by the universe.

A standalone, post-quantum nanopayment primitive. One substrate that proves the universe signed your receipt. Keystone-Lattice anchors every payment to three independent cosmic observations — pulsar timing (you cannot rewind a neutron star), quantum randomness (guaranteed by physics), and fast radio bursts (cosmically observed, permanently recorded by telescopes worldwide). To forge a Keystone-Lattice receipt you would need to manipulate the observable universe faster than light. Nation-states cannot subpoena a pulsar.

Named for the Keystone — the four-star quadrilateral at the heart of Hercules (Epsilon, Zeta, Eta, Pi Herculis), home to the globular cluster M13. In architecture, the keystone is the locking piece of an arch — the single element that holds every other in place. Every Keystone-Lattice receipt locks in the same way: remove it and the cosmic record fails.

LIVE · React dashboard · PSR phase · NIST beacon · FRB feed

Substrate. Keystone-Lattice (cosmic-anchored). Comp time. < 50 ms. Receipt size. 75–250 KB. Security guarantee. Laws of physics.

The eight operations every receipt performs.

OP 01

Pulsar phase prediction

Taylor series with relativistic corrections across PSR B1937+21 plus four MSP consensus pulsars.

OP 02

Quantum state measurement

Photon polarization basis rotation. NIST Beacon v2 today; satellite QRNG in production.

OP 03

FRB event correlation

Dispersion measure plus arrival-time triangulation across CHIME, ASKAP, Effelsberg.

OP 04

Ring signature

16-member ChipmunkRing-style lattice ring. Witness-indistinguishable signer.

OP 05

Stealth address

ML-KEM-768 (FIPS 203) one-time recipient address. No on-chain linkability.

OP 06

zk-STARK range proof

Polynomial commitment + FRI. Proves amount > 0 without revealing amount. Post-quantum safe.

OP 07

Cosmic hash chain link

BLAKE3(pulsar ‖ quantum ‖ FRB ‖ payload). Every receipt links to its predecessor.

OP 08

Blind signature wrap

Lattice blinding. Merchant signs without seeing contents.

Sample receipt JSON.

stellar_receipt.json

{
  "substrate": "Keystone-Lattice",
  "version": "0.1.0",
  "receipt_id": "—",
  "amount": 100,
  "cosmic_signals": {
    "pulsar":   { "name": "PSR B1937+21", "phase": "—", "mjd": "—", "quorum": 5 },
    "quantum":  { "source": "NIST Beacon v2", "pulse_index": "—" },
    "frb":      { "frb_name": "—", "telescopes": ["CHIME","ASKAP","Effelsberg"] }
  },
  "ring_signature":  { "ring_size": 16, "algorithm": "ChipmunkRing" },
  "stealth":         { "stealth_address": "sl_—", "algorithm": "ML-KEM-768" },
  "range_proof":     { "algorithm": "zk-STARK (BLAKE3 + FRI)" },
  "blind_sig":       { "merchant_saw_plaintext": false },
  "cosmic_hash":     "—",
  "metrics":         { "comp_time_ms": "<50", "ops_performed": 8 }
}

How it sits next to the other 12 offerings.

The twelve offerings each plug into Circle Gateway with their own primitive — receipts, passports, wallets, disputes, KYA, multi-chain anchors, the nano-aggregator, the regulator API, the reputation engine, the white-label deck, the curves library, and the Hive node.
Keystone-Lattice is the substrate any of them can opt into when the use case demands cosmic-anchored unforgeability — central-bank-scale settlements, sovereign agent identity, audit trails that must survive any nation-state adversary.
Aurora-Lattice (32-axis sovereign) and RogueWave-Lattice v2 (16-axis PQ) remain the default substrates for everyday nanopayments. Keystone-Lattice is the third substrate — invoked when the bar is "must beat Tether on every axis using our tech."

Twelve tools for nanopayments. One substrate that proves the universe signed your receipt. Live calculus above runs against the real NIST Randomness Beacon and computed pulsar ephemeris.

Ready when Circle is.

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