Pith Number

pith:MUE6IE73

pith:2023:MUE6IE73ABFT5B7DIOI5WP5L33

not attested not anchored not stored refs pending

Covariant definition of Double Null Data and geometric uniqueness of the characteristic initial value problem

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

arxiv:2301.02722 v2 · 2023-01-06 · 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{MUE6IE73ABFT5B7DIOI5WP5L33}

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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

1 paper in Pith

Quantization of Gravity on Null Hypersurfaces

Receipt and verification

First computed	2026-07-05T06:15:21.997512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6509e413fb004b3e87e34391db3fabdee9953494191b396a7c8b7b1e37317314

Aliases

arxiv: 2301.02722 · arxiv_version: 2301.02722v2 · doi: 10.48550/arxiv.2301.02722 · pith_short_12: MUE6IE73ABFT · pith_short_16: MUE6IE73ABFT5B7D · pith_short_8: MUE6IE73

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/MUE6IE73ABFT5B7DIOI5WP5L33 \
  | 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: 6509e413fb004b3e87e34391db3fabdee9953494191b396a7c8b7b1e37317314

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0eb14642561e1bb456fab3c02923da3b3e849912c36e1aead2cef3ecc2a57a0a",
    "cross_cats_sorted": [
      "math.AP",
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2023-01-06T21:40:10Z",
    "title_canon_sha256": "18b40866b7a9743f33eccb78b5f52382ce36857fcae68aea3b01a54db8763034"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.02722",
    "kind": "arxiv",
    "version": 2
  }
}