Pith Number

pith:PAELCCQU

pith:2010:PAELCCQUQIG7CWSSFIZRJ76XWZ

not attested not anchored not stored refs pending

Degenerations of LeBrun twistor spaces

Nobuhiro Honda

arxiv:1001.3461 v3 · 2010-01-20 · 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{PAELCCQUQIG7CWSSFIZRJ76XWZ}

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	2026-05-18T02:09:32.208448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7808b10a14820df15a522a3314ffd7b65325af82b6517ffcb9d46484539e8d6a

Aliases

arxiv: 1001.3461 · arxiv_version: 1001.3461v3 · doi: 10.48550/arxiv.1001.3461 · pith_short_12: PAELCCQUQIG7 · pith_short_16: PAELCCQUQIG7CWSS · pith_short_8: PAELCCQU

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/PAELCCQUQIG7CWSSFIZRJ76XWZ \
  | 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: 7808b10a14820df15a522a3314ffd7b65325af82b6517ffcb9d46484539e8d6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2027182fb24d9bf874a416c85b41d7b014af2f56ad716f98b35d79ecf6447dfd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2010-01-20T05:43:58Z",
    "title_canon_sha256": "b4af34c8033c2e7095028066635892a250ada0f59dba8f9c9d499e566998d603"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.3461",
    "kind": "arxiv",
    "version": 3
  }
}