Pith Number

pith:QFKUG3I3

pith:2012:QFKUG3I3MLCLD6ODWESDRJU7P6

not attested not anchored not stored refs pending

Infinite Shannon entropy

Matt Visser (Victoria University of Wellington), Valentina Baccetti (Victoria University of Wellington)

arxiv:1212.5630 v2 · 2012-12-21 · cond-mat.stat-mech · math-ph · math.MP · 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{QFKUG3I3MLCLD6ODWESDRJU7P6}

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	2026-05-18T03:29:06.429037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8155436d1b62c4b1f9c3b12438a69f7fb5c7fe62ad9729a83cd85092d50439ec

Aliases

arxiv: 1212.5630 · arxiv_version: 1212.5630v2 · doi: 10.48550/arxiv.1212.5630 · pith_short_12: QFKUG3I3MLCL · pith_short_16: QFKUG3I3MLCLD6OD · pith_short_8: QFKUG3I3

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/QFKUG3I3MLCLD6ODWESDRJU7P6 \
  | 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: 8155436d1b62c4b1f9c3b12438a69f7fb5c7fe62ad9729a83cd85092d50439ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f2684ba37af822e2af54ea358513e58f28311a7cea2ad5b79558766df8307f0",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2012-12-21T23:08:13Z",
    "title_canon_sha256": "71f2403e034165b9f7c09d27a5170426d68b561cd420091ab9e2236b37920634"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.5630",
    "kind": "arxiv",
    "version": 2
  }
}