Pith Number

pith:UILUC7XJ

pith:2012:UILUC7XJYAF52GTQ2SPIXEY3BF

not attested not anchored not stored refs pending

Hunting for the Quantum Cheshire Cat

Antonio Di Lorenzo

arxiv:1205.3755 v2 · 2012-05-16 · quant-ph · cond-mat.mes-hall

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UILUC7XJYAF52GTQ2SPIXEY3BF}

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	2026-05-18T03:05:28.544800Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a217417ee9c00bdd1a70d49e8b931b09520a11e44fb3de199d9ad504b18ce44c

Aliases

arxiv: 1205.3755 · arxiv_version: 1205.3755v2 · doi: 10.48550/arxiv.1205.3755 · pith_short_12: UILUC7XJYAF5 · pith_short_16: UILUC7XJYAF52GTQ · pith_short_8: UILUC7XJ

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/UILUC7XJYAF52GTQ2SPIXEY3BF \
  | 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: a217417ee9c00bdd1a70d49e8b931b09520a11e44fb3de199d9ad504b18ce44c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66ddb0f831f3da1a9e2ff489748000736819492a10ee880301a309ebbbf195d2",
    "cross_cats_sorted": [
      "cond-mat.mes-hall"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-05-16T18:45:19Z",
    "title_canon_sha256": "e613e6a98f2b1fd8096ef03f07ea314d3e726933801aa51eabdda15d18f3c217"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.3755",
    "kind": "arxiv",
    "version": 2
  }
}