Pith Number

pith:UJKWISGH

pith:2009:UJKWISGHGKFLLDHLCNK3GBYMTS

not attested not anchored not stored refs pending

Relativistic Fluids and the Physics of Gravitational Collapse

L. Herrera

arxiv:0909.3474 v2 · 2009-09-18 · physics.gen-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{UJKWISGHGKFLLDHLCNK3GBYMTS}

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	2026-05-18T04:07:18.016362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2556448c7328ab58ceb1355b3070c9cab454da86e39ce2ebb254690984562af

Aliases

arxiv: 0909.3474 · arxiv_version: 0909.3474v2 · doi: 10.48550/arxiv.0909.3474 · pith_short_12: UJKWISGHGKFL · pith_short_16: UJKWISGHGKFLLDHL · pith_short_8: UJKWISGH

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/UJKWISGHGKFLLDHLCNK3GBYMTS \
  | 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: a2556448c7328ab58ceb1355b3070c9cab454da86e39ce2ebb254690984562af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8513efcb50573159861ca6e0b94954801c99bfa10a9c49017e969f8b2f849c4b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2009-09-18T15:58:18Z",
    "title_canon_sha256": "eeacf089d9891aec5cae444a6c8e9e7cf92660e6b6cd6cdae15580d422c5cf77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3474",
    "kind": "arxiv",
    "version": 2
  }
}