Pith Number

pith:2QQ5C7RT

pith:2010:2QQ5C7RTSUGQ7NEYCYPPMKIANC

not attested not anchored not stored refs pending

On the uniqueness of almost-Kaehler structures

A.J.diScala, Paul-Andi Nagy

arxiv:1001.4292 v1 · 2010-01-25 · 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{2QQ5C7RTSUGQ7NEYCYPPMKIANC}

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	2026-05-18T03:49:12.194035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d421d17e33950d0fb498161ef629006881d890a8486a4e5950837418e2f0a4e3

Aliases

arxiv: 1001.4292 · arxiv_version: 1001.4292v1 · doi: 10.48550/arxiv.1001.4292 · pith_short_12: 2QQ5C7RTSUGQ · pith_short_16: 2QQ5C7RTSUGQ7NEY · pith_short_8: 2QQ5C7RT

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/2QQ5C7RTSUGQ7NEYCYPPMKIANC \
  | 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: d421d17e33950d0fb498161ef629006881d890a8486a4e5950837418e2f0a4e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3507f746d513c640beeb9af1c51af3dc7ef48d85f13ebc64dba54f705933359e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2010-01-25T00:47:10Z",
    "title_canon_sha256": "e2e55067a0fe3b68fa83a45fabf3cc91c5b6bc6e94ea32ff3336248708ca03ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.4292",
    "kind": "arxiv",
    "version": 1
  }
}