Pith Number

pith:RHJ5PWEB

pith:2017:RHJ5PWEBPERQSJAPM2GSSWZVBC

not attested not anchored not stored refs pending

Null Geometry and the Penrose Conjecture

Henri P. Roesch, Hubert L. Bray

arxiv:1708.00941 v1 · 2017-08-02 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RHJ5PWEBPERQSJAPM2GSSWZVBC}

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	2026-05-18T00:38:41.075828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89d3d7d881792309240f668d295b35089aaa3cdd48a8d3584d196bbb440ce6e9

Aliases

arxiv: 1708.00941 · arxiv_version: 1708.00941v1 · doi: 10.48550/arxiv.1708.00941 · pith_short_12: RHJ5PWEBPERQ · pith_short_16: RHJ5PWEBPERQSJAP · pith_short_8: RHJ5PWEB

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/RHJ5PWEBPERQSJAPM2GSSWZVBC \
  | 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: 89d3d7d881792309240f668d295b35089aaa3cdd48a8d3584d196bbb440ce6e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0e24f7352d5e48064e956bea312a8a94da20a6f369924351c38dfd1c06efbbb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-08-02T21:43:32Z",
    "title_canon_sha256": "990eb6d79da957991f07f83185f838c0fb4aa2d42dc617b2657f9360cb5a4d50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.00941",
    "kind": "arxiv",
    "version": 1
  }
}