Pith Number

pith:2G2C3E5Y

pith:2009:2G2C3E5YYL5NHHJCP7QHUGKMJH

not attested not anchored not stored refs pending

Static and Radiating Solutions of Lovelock Gravity in the Presence of a Perfect Fluid

M. H. Dehghani, N. Farhangkhah

arxiv:0904.1338 v1 · 2009-04-08 · 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{2G2C3E5YYL5NHHJCP7QHUGKMJH}

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	2026-05-18T02:34:59.881501Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1b42d93b8c2fad39d227fe07a194c49e56526e8ae5bce541fb4ef5b677eec06

Aliases

arxiv: 0904.1338 · arxiv_version: 0904.1338v1 · doi: 10.48550/arxiv.0904.1338 · pith_short_12: 2G2C3E5YYL5N · pith_short_16: 2G2C3E5YYL5NHHJC · pith_short_8: 2G2C3E5Y

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/2G2C3E5YYL5NHHJCP7QHUGKMJH \
  | 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: d1b42d93b8c2fad39d227fe07a194c49e56526e8ae5bce541fb4ef5b677eec06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d2718386f03cb321b767f0b87906c2835cb24c3e00a646085fffcf711bf7ef7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-04-08T13:32:11Z",
    "title_canon_sha256": "eaed81b6997ec0aaa04e79eca0ce8123a5f2242aae74237de8556193c958b3f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.1338",
    "kind": "arxiv",
    "version": 1
  }
}