Pith Number

pith:RE7QVUCR

pith:2005:RE7QVUCRYPZ2NKA4Q4WZOMNE52

not attested not anchored not stored refs pending

Cylindrical Collapse and Gravitational Waves

L. Herrera, N.O. Santos

arxiv:gr-qc/0502009 v2 · 2005-02-02 · gr-qc · 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{RE7QVUCRYPZ2NKA4Q4WZOMNE52}

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	2026-05-18T04:37:00.932653Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

893f0ad051c3f3a6a81c872d9731a4eeae8e62613759b948ca10a0028d35e907

Aliases

arxiv: gr-qc/0502009 · arxiv_version: gr-qc/0502009v2 · doi: 10.48550/arxiv.gr-qc/0502009 · pith_short_12: RE7QVUCRYPZ2 · pith_short_16: RE7QVUCRYPZ2NKA4 · pith_short_8: RE7QVUCR

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/RE7QVUCRYPZ2NKA4Q4WZOMNE52 \
  | 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: 893f0ad051c3f3a6a81c872d9731a4eeae8e62613759b948ca10a0028d35e907

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da48f6fa48536f53979e8e377e587af749eeb35942ca833442d8c5633a0daeb8",
    "cross_cats_sorted": [
      "astro-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2005-02-02T14:16:57Z",
    "title_canon_sha256": "2a574642ff0acf374d580357e68f7ec3bdd3ad9a1434030753f2c2a2a6f3478e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0502009",
    "kind": "arxiv",
    "version": 2
  }
}