Pith Number

pith:EXWYAXSH

pith:2008:EXWYAXSHEFQFUNRWOAZ5GCOV2Z

not attested not anchored not stored refs pending

The Effect of Gas Physics on the Halo Mass Function

A. E. Evrard, D. Rudd, R. Stanek

arxiv:0809.2805 v1 · 2008-09-16 · astro-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{EXWYAXSHEFQFUNRWOAZ5GCOV2Z}

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	2026-07-04T17:12:45.626209Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25ed805e4721605a36367033d309d5d6600eceb360235ba43fc344eb85cc4323

Aliases

arxiv: 0809.2805 · arxiv_version: 0809.2805v1 · doi: 10.48550/arxiv.0809.2805 · pith_short_12: EXWYAXSHEFQF · pith_short_16: EXWYAXSHEFQFUNRW · pith_short_8: EXWYAXSH

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/EXWYAXSHEFQFUNRWOAZ5GCOV2Z \
  | 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: 25ed805e4721605a36367033d309d5d6600eceb360235ba43fc344eb85cc4323

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3a477012932ba24a4765f0cd4a77d9b9142e162b8ceb971659aa8574b8efe96",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-16T20:43:02Z",
    "title_canon_sha256": "de91112292ef3cab449d9783ea09cc8feeb19398507d2fd135751b7124ab2cf5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2805",
    "kind": "arxiv",
    "version": 1
  }
}