Pith Number

pith:GIWPYUSQ

pith:2026:GIWPYUSQDQM6J6Y7MUTRYKVDFK

not attested not anchored not stored refs pending

Look-Ahead-Freedom as Temporal Non-Interference: A Verifiable Correctness Property for Backtesting and Agentic Trading Pipelines

Xavier Fonseca

arxiv:2607.04958 v1 · 2026-07-06 · cs.CR · cs.LO · cs.PL · cs.SE · q-fin.PM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GIWPYUSQDQM6J6Y7MUTRYKVDFK}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-07T02:20:15.220116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

322cfc52501c19e4fb1f65271c2aa32a94d62e98ebe8acacfda04e57b266b359

Aliases

arxiv: 2607.04958 · arxiv_version: 2607.04958v1 · doi: 10.48550/arxiv.2607.04958 · pith_short_12: GIWPYUSQDQM6 · pith_short_16: GIWPYUSQDQM6J6Y7 · pith_short_8: GIWPYUSQ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/GIWPYUSQDQM6J6Y7MUTRYKVDFK \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 322cfc52501c19e4fb1f65271c2aa32a94d62e98ebe8acacfda04e57b266b359

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "513dc1f93a4eb26a90fabba10abadd695f9214209297cd0b0f98d63c37dba1a3",
    "cross_cats_sorted": [
      "cs.LO",
      "cs.PL",
      "cs.SE",
      "q-fin.PM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-07-06T11:42:26Z",
    "title_canon_sha256": "fe3114fbbe9df4401caac332f2684118d98a46336b1fc316125efc70b652f588"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.04958",
    "kind": "arxiv",
    "version": 1
  }
}