Pith Number

pith:D2UVP265

pith:2025:D2UVP265DGIP4DRP6H2RA4ASWH

not attested not anchored not stored refs pending

Conformal compactification and affine-null metric formulation of the Einstein equations

Emanuel Gallo, Thomas M\"adler

arxiv:2504.18973 v2 · 2025-04-26 · 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{D2UVP265DGIP4DRP6H2RA4ASWH}

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	2026-07-05T11:35:34.802838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ea957ebdd1990fe0e2ff1f5107012b1ec03e331c637721fa333a7d0c1f4078f

Aliases

arxiv: 2504.18973 · arxiv_version: 2504.18973v2 · doi: 10.48550/arxiv.2504.18973 · pith_short_12: D2UVP265DGIP · pith_short_16: D2UVP265DGIP4DRP · pith_short_8: D2UVP265

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/D2UVP265DGIP4DRP6H2RA4ASWH \
  | 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: 1ea957ebdd1990fe0e2ff1f5107012b1ec03e331c637721fa333a7d0c1f4078f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "581b478138aaf0c41c10f0f75fad6b45cc0b600eee8f4bf123cc0dddcfdb9f34",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-04-26T17:06:17Z",
    "title_canon_sha256": "d7e187b04ef965c29382407362120c2fb637d29f1318fbceae706fd3cd3d9b24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.18973",
    "kind": "arxiv",
    "version": 2
  }
}