Pith Number

pith:AB2NK5HI

pith:2009:AB2NK5HIX2QYOIVNBQEJFTILOH

not attested not anchored not stored refs pending

Citation entropy and research impact estimation

Z.K. Silagadze

arxiv:0905.1039 v2 · 2009-05-07 · physics.soc-ph · cond-mat.stat-mech · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AB2NK5HIX2QYOIVNBQEJFTILOH}

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	2026-05-18T04:38:14.446132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0074d574e8bea18722ad0c0892cd0b71c3af71fcd1b2aa65be2383ea1cbc6d8c

Aliases

arxiv: 0905.1039 · arxiv_version: 0905.1039v2 · doi: 10.48550/arxiv.0905.1039 · pith_short_12: AB2NK5HIX2QY · pith_short_16: AB2NK5HIX2QYOIVN · pith_short_8: AB2NK5HI

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/AB2NK5HIX2QYOIVNBQEJFTILOH \
  | 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: 0074d574e8bea18722ad0c0892cd0b71c3af71fcd1b2aa65be2383ea1cbc6d8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4103a4107f658306105fc3da01849adb11f2bb0e332be9ecfdc3577962ebf70",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2009-05-07T15:01:38Z",
    "title_canon_sha256": "2e86edb03ca5578ccea34c21cb03393ea6df9f15bcb9f1bf90a85c19d8ca6802"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1039",
    "kind": "arxiv",
    "version": 2
  }
}