Pith Number

pith:SJULQDQF

pith:2009:SJULQDQFAOPCAWR45Y2PXOJLZR

not attested not anchored not stored refs pending

Information erasure lurking behind measures of complexity

Elisabeth Rieper, Karoline Wiesner, Mile Gu, Vlatko Vedral

arxiv:0905.2918 v2 · 2009-05-18 · physics.data-an · cond-mat.stat-mech · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SJULQDQFAOPCAWR45Y2PXOJLZR}

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	2026-05-18T04:10:36.135167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9268b80e05039e205a3cee34fbb92bcc6ad2327ccbe738f50b0c3470a5086672

Aliases

arxiv: 0905.2918 · arxiv_version: 0905.2918v2 · doi: 10.48550/arxiv.0905.2918 · pith_short_12: SJULQDQFAOPC · pith_short_16: SJULQDQFAOPCAWR4 · pith_short_8: SJULQDQF

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/SJULQDQFAOPCAWR45Y2PXOJLZR \
  | 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: 9268b80e05039e205a3cee34fbb92bcc6ad2327ccbe738f50b0c3470a5086672

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c41e7aa984ffb85491800dd1259cbe918c851ad0bd1fbdef6c76a0772fea32ac",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2009-05-18T15:54:50Z",
    "title_canon_sha256": "1abbcd8e402acfde63daf75b0507bbf69022b58cb927bbc2367e63146b94727d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.2918",
    "kind": "arxiv",
    "version": 2
  }
}