Pith Number

pith:ITXUVQ4Y

pith:2013:ITXUVQ4Y5PSNULLKY2HOAELCWT

not attested not anchored not stored refs pending

Comment on "Quantum Szilard Engine"

John Goold, Martin Plesch, Oscar Dahlsten, Vlatko Vedral

arxiv:1309.4209 v1 · 2013-09-17 · 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{ITXUVQ4Y5PSNULLKY2HOAELCWT}

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	2026-05-18T03:06:42.635252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44ef4ac398ebe4da2d6ac68ee01162b4ce4614433b9a96a6c40a0237b86a0285

Aliases

arxiv: 1309.4209 · arxiv_version: 1309.4209v1 · doi: 10.48550/arxiv.1309.4209 · pith_short_12: ITXUVQ4Y5PSN · pith_short_16: ITXUVQ4Y5PSNULLK · pith_short_8: ITXUVQ4Y

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/ITXUVQ4Y5PSNULLKY2HOAELCWT \
  | 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: 44ef4ac398ebe4da2d6ac68ee01162b4ce4614433b9a96a6c40a0237b86a0285

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74ec20bf3cd59411b0d9d40658d11ef595a2db67ec65f8aa6489e988bf87f8f5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-09-17T07:25:14Z",
    "title_canon_sha256": "fea0532c3cdc41ed2583208ee27c33646c0096263917e7c2ac659ceadb9723cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.4209",
    "kind": "arxiv",
    "version": 1
  }
}