Pith Number

pith:VEUFD3MQ

pith:2022:VEUFD3MQ5U7QOHYWM5DDKOZSLV

not attested not anchored not stored refs pending

Double Null Data and the Characteristic Problem in General Relativity

Gabriel S\'anchez-P\'erez, Marc Mars

arxiv:2205.15267 v2 · 2022-05-30 · gr-qc · math.AP · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VEUFD3MQ5U7QOHYWM5DDKOZSLV}

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.

Cited by

3 papers in Pith

Quantization of Gravity on Null Hypersurfaces

Localization and anomalous reference frames in gravity

Gravitational null rays: Covariant Quantization and the Dressing Time

Receipt and verification

First computed	2026-07-05T05:31:01.949623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a92851ed90ed3f071f166746353b325d437ded17ba181e30f3577f99a8894b43

Aliases

arxiv: 2205.15267 · arxiv_version: 2205.15267v2 · doi: 10.48550/arxiv.2205.15267 · pith_short_12: VEUFD3MQ5U7Q · pith_short_16: VEUFD3MQ5U7QOHYW · pith_short_8: VEUFD3MQ

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/VEUFD3MQ5U7QOHYWM5DDKOZSLV \
  | 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: a92851ed90ed3f071f166746353b325d437ded17ba181e30f3577f99a8894b43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdb2ab65c8da0f6e124a2eb5fbeacd277f3f6c328f854c4ef1766b1a8f9ccd35",
    "cross_cats_sorted": [
      "math.AP",
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2022-05-30T17:20:11Z",
    "title_canon_sha256": "49016c79b97ba6dd01098a4fe522aacbd45bed27a27775f4c11ccb2aade7eea9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.15267",
    "kind": "arxiv",
    "version": 2
  }
}