Pith Number

pith:L3J2RWTH

pith:2022:L3J2RWTH4I6P362FBQKJESPSYH

not attested not anchored not stored refs pending

A linear program for testing nonclassicality and an open-source implementation

Ana Bel\'en Sainz, David Schmid, Elie Wolfe, John H. Selby, Vinicius P. Rossi

arxiv:2204.11905 v3 · 2022-04-25 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L3J2RWTH4I6P362FBQKJESPSYH}

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	2026-07-05T08:04:10.831420Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ed3a8da67e23cfdfb450c149249f2c1c5b5a8bb2f059f87512725df8701ec3b

Aliases

arxiv: 2204.11905 · arxiv_version: 2204.11905v3 · doi: 10.48550/arxiv.2204.11905 · pith_short_12: L3J2RWTH4I6P · pith_short_16: L3J2RWTH4I6P362F · pith_short_8: L3J2RWTH

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/L3J2RWTH4I6P362FBQKJESPSYH \
  | 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: 5ed3a8da67e23cfdfb450c149249f2c1c5b5a8bb2f059f87512725df8701ec3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8f8574874e9a5d4e9006b068f984a0a99fd608d29003049c3dc1868dfa5c3dd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-04-25T18:09:24Z",
    "title_canon_sha256": "18b0144cd02423b084b00f05e11f223848cff6604d21d0209c84978b2e439434"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.11905",
    "kind": "arxiv",
    "version": 3
  }
}