Pith Number

pith:OTZGTLTF

pith:2003:OTZGTLTFC5DAAYFSU2YBWGDD3U

not attested not anchored not stored refs pending

Plasma expansion in the geometry of a collapsing star

L. Vitagliano, R. Ruffini, S.-S. Xue

arxiv:astro-ph/0304307 v1 · 2003-04-16 · astro-ph · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OTZGTLTFC5DAAYFSU2YBWGDD3U}

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	2026-05-18T00:37:17.599610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74f269ae6517460060b2a6b01b1863dd2223a4a99ec2f02c6eef9d80f655e18d

Aliases

arxiv: astro-ph/0304307 · arxiv_version: astro-ph/0304307v1 · doi: 10.48550/arxiv.astro-ph/0304307 · pith_short_12: OTZGTLTFC5DA · pith_short_16: OTZGTLTFC5DAAYFS · pith_short_8: OTZGTLTF

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/OTZGTLTFC5DAAYFSU2YBWGDD3U \
  | 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: 74f269ae6517460060b2a6b01b1863dd2223a4a99ec2f02c6eef9d80f655e18d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e349af3e3dac449006e9929c3afdb75c31ef41d26cba2c8bc7d310ab0abbe19",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-04-16T15:22:32Z",
    "title_canon_sha256": "b5fba5109e047159a2c32bc5571ba7c86c69df25a8eec8a6e3c027fb46a871db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0304307",
    "kind": "arxiv",
    "version": 1
  }
}