Pith Number

pith:FUQUDWSK

pith:1992:FUQUDWSKBVPTRXGDHLRYSVJXPV

not attested not anchored not stored refs pending

A Quasilocal Test of the Finiteness of the Universe

Edward Malec, Niall \'O Murchadha

arxiv:gr-qc/9209004 v1 · 1992-09-11 · 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{FUQUDWSKBVPTRXGDHLRYSVJXPV}

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	2026-07-04T14:25:59.000339Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d2141da4a0d5f38dcc33ae38955377d4a626f0758779d23e865173beba21fec

Aliases

arxiv: gr-qc/9209004 · arxiv_version: gr-qc/9209004v1 · doi: 10.48550/arxiv.gr-qc/9209004 · pith_short_12: FUQUDWSKBVPT · pith_short_16: FUQUDWSKBVPTRXGD · pith_short_8: FUQUDWSK

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/FUQUDWSKBVPTRXGDHLRYSVJXPV \
  | 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: 2d2141da4a0d5f38dcc33ae38955377d4a626f0758779d23e865173beba21fec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a5893e3b7e5b9d3d88d96ae05adc0488299cc85dcdf240436b202726587c668",
    "cross_cats_sorted": [
      "astro-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1992-09-11T10:41:00Z",
    "title_canon_sha256": "f5001761989f8dc2d4b747954e1282f57d63bcd3f109a5f06d98d2cb3800bf3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9209004",
    "kind": "arxiv",
    "version": 1
  }
}