Pith Number

pith:2LBDZ42K

pith:2005:2LBDZ42K242LMTXDDCJMP3MX4C

not attested not anchored not stored refs pending

An index to quantify an individual's scientific research output

J.E. Hirsch

arxiv:physics/0508025 v5 · 2005-08-03 · physics.soc-ph · cond-mat.stat-mech

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2LBDZ42K242LMTXDDCJMP3MX4C}

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	2026-05-18T01:05:08.411195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2c23cf34ad734b64ee31892c7ed97e09ff15f1100519b0c0df290b3ee00c41f

Aliases

arxiv: physics/0508025 · arxiv_version: physics/0508025v5 · doi: 10.48550/arxiv.physics/0508025 · pith_short_12: 2LBDZ42K242L · pith_short_16: 2LBDZ42K242LMTXD · pith_short_8: 2LBDZ42K

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/2LBDZ42K242LMTXDDCJMP3MX4C \
  | 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: d2c23cf34ad734b64ee31892c7ed97e09ff15f1100519b0c0df290b3ee00c41f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e4be4c65ffbad23b383f78012291250ff1990dce04bd427e203ae3fe904700c",
    "cross_cats_sorted": [
      "cond-mat.stat-mech"
    ],
    "license": "",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2005-08-03T15:17:22Z",
    "title_canon_sha256": "258ba504cbb79c153f02f59e695d7e964841eaedf2f7202dc33fcdae60e6d153"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0508025",
    "kind": "arxiv",
    "version": 5
  }
}