Pith Number

pith:YEXUGHDX

pith:2009:YEXUGHDX4FZ7YBFLUSKB4ZV2ZO

not attested not anchored not stored refs pending

Thermodynamic equilibrium conditions for mass varying particle structures

Alex E. Bernardini, O. Bertolami

arxiv:0909.1280 v2 · 2009-09-07 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YEXUGHDX4FZ7YBFLUSKB4ZV2ZO}

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	2026-05-18T04:20:38.844540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c12f431c77e173fc04aba4941e66bacb959b2eec5d9d974d8d32a8bbb08a8712

Aliases

arxiv: 0909.1280 · arxiv_version: 0909.1280v2 · doi: 10.48550/arxiv.0909.1280 · pith_short_12: YEXUGHDX4FZ7 · pith_short_16: YEXUGHDX4FZ7YBFL · pith_short_8: YEXUGHDX

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/YEXUGHDX4FZ7YBFLUSKB4ZV2ZO \
  | 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: c12f431c77e173fc04aba4941e66bacb959b2eec5d9d974d8d32a8bbb08a8712

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b6dd1ce567e08bae92f5ba30bfb0bf351c6f615e47f3d3869a557a56c0a1fca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-09-07T16:45:20Z",
    "title_canon_sha256": "96a942587f60f6eb57399d0b57afc21c260da3ae0243b891e592fee448455f22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1280",
    "kind": "arxiv",
    "version": 2
  }
}