Pith Number

pith:LWDYH3XG

pith:2013:LWDYH3XGY6M2SNCFBJVJVMSINL

not attested not anchored not stored refs pending

Projective Compactifications and Einstein metrics

Andreas Cap, A. Rod Gover

arxiv:1304.1869 v2 · 2013-04-06 · math.DG · gr-qc · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LWDYH3XGY6M2SNCFBJVJVMSINL}

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	2026-05-18T01:10:18.739419Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d8783eee6c799a934450a6a9ab2486ada4f66bc7c646d1a785bb3d7e77ecee8

Aliases

arxiv: 1304.1869 · arxiv_version: 1304.1869v2 · doi: 10.48550/arxiv.1304.1869 · pith_short_12: LWDYH3XGY6M2 · pith_short_16: LWDYH3XGY6M2SNCF · pith_short_8: LWDYH3XG

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/LWDYH3XGY6M2SNCFBJVJVMSINL \
  | 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: 5d8783eee6c799a934450a6a9ab2486ada4f66bc7c646d1a785bb3d7e77ecee8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "686380f03288b956a5e6e36a3a904060dd704fef03db369cde48765c5579338b",
    "cross_cats_sorted": [
      "gr-qc",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-04-06T09:51:37Z",
    "title_canon_sha256": "ea6113d0994d57e138516fd44c1ec9013292a3f109cfabd31e897610f097ef94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1869",
    "kind": "arxiv",
    "version": 2
  }
}