Pith Number

pith:EE6TL3VT

pith:1998:EE6TL3VTG3BYT7RXAKCFAIF6ON

not attested not anchored not stored refs pending

Regular spherical dust spacetimes

David Matravers, Neil Humphreys, Roy Maartens

arxiv:gr-qc/9804023 v2 · 1998-04-07 · gr-qc · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EE6TL3VTG3BYT7RXAKCFAIF6ON}

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	2026-05-18T01:39:18.646161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

213d35eeb336c389fe3702845020be734b2e9908d6f17ec3c6ea10d9a4fcdfb5

Aliases

arxiv: gr-qc/9804023 · arxiv_version: gr-qc/9804023v2 · doi: 10.48550/arxiv.gr-qc/9804023 · pith_short_12: EE6TL3VTG3BY · pith_short_16: EE6TL3VTG3BYT7RX · pith_short_8: EE6TL3VT

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/EE6TL3VTG3BYT7RXAKCFAIF6ON \
  | 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: 213d35eeb336c389fe3702845020be734b2e9908d6f17ec3c6ea10d9a4fcdfb5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9a09f84da6b6835525571ab557b96e54765030daca459f7b85bf5cd6cc01351",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "1998-04-07T12:39:28Z",
    "title_canon_sha256": "6618100aff29ebe6e54c3863179f4dc72d97c8de51c4a334f9784bbb4b8eee81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9804023",
    "kind": "arxiv",
    "version": 2
  }
}