Pith Number

pith:H4SMH7RO

pith:2009:H4SMH7RO37QFMJ6NVPKN52I5OV

not attested not anchored not stored refs pending

An alternative well-posedness property and static spacetimes with naked singularities

Marcela Sanmartino, Philippe Tchamitchian, Ricardo E. Gamboa Saravi

arxiv:0910.5439 v2 · 2009-10-28 · gr-qc · math-ph · math.MP · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H4SMH7RO37QFMJ6NVPKN52I5OV}

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	2026-05-18T02:34:12.581984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f24c3fe2edfe05627cdabd4dee91d75514059eb44529f6c79988458975ed922

Aliases

arxiv: 0910.5439 · arxiv_version: 0910.5439v2 · doi: 10.48550/arxiv.0910.5439 · pith_short_12: H4SMH7RO37QF · pith_short_16: H4SMH7RO37QFMJ6N · pith_short_8: H4SMH7RO

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/H4SMH7RO37QFMJ6NVPKN52I5OV \
  | 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: 3f24c3fe2edfe05627cdabd4dee91d75514059eb44529f6c79988458975ed922

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a4d685c49a3a1e84202e9e5d218a7f1df59e181aa1d3c3a1f5fd82bbf66148a",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-10-28T17:14:22Z",
    "title_canon_sha256": "521709b20256376f7eb01bfdb604b0cae0ce971ac45af851a21619841df7e059"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.5439",
    "kind": "arxiv",
    "version": 2
  }
}