Pith Number

pith:PLHPVUVH

pith:2018:PLHPVUVHKHQXWMH562BUQHR4IH

not attested not anchored not stored refs pending

Affine-null metric formulation of General Relativity at two intersecting null hypersurfaces

Thomas M\"adler

arxiv:1810.04743 v3 · 2018-10-10 · gr-qc · astro-ph.HE · astro-ph.SR · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PLHPVUVHKHQXWMH562BUQHR4IH}

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	2026-05-17T23:45:20.608650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7acefad2a751e17b30fdf683481e3c41da9c1ef66750c9f655ad65e274a72bdf

Aliases

arxiv: 1810.04743 · arxiv_version: 1810.04743v3 · doi: 10.48550/arxiv.1810.04743 · pith_short_12: PLHPVUVHKHQX · pith_short_16: PLHPVUVHKHQXWMH5 · pith_short_8: PLHPVUVH

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/PLHPVUVHKHQXWMH562BUQHR4IH \
  | 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: 7acefad2a751e17b30fdf683481e3c41da9c1ef66750c9f655ad65e274a72bdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fa2266374d55ae10ba64e2df438b21df5dc3de8ca5dd492edde95287f7457bb",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "astro-ph.SR",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-10-10T20:41:09Z",
    "title_canon_sha256": "8b327c36c5d5172d0af603886b13932a17569ae3d4d2b9538e5f9f54d6448515"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.04743",
    "kind": "arxiv",
    "version": 3
  }
}