Pith Number

pith:AHBK5NT3

pith:2009:AHBK5NT3IIF3JJF5YWWO6HARGW

not attested not anchored not stored refs pending

On the geometry of the connection with totally skew-symmetric torsion on almost complex manifolds with Norden metric

Dimitar Mekerov

arxiv:0902.0868 v2 · 2009-02-05 · 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{AHBK5NT3IIF3JJF5YWWO6HARGW}

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	2026-05-18T04:31:20.596604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01c2aeb67b420bb4a4bdc5acef1c11359be733a5f9d483447bb13b6bfd90503b

Aliases

arxiv: 0902.0868 · arxiv_version: 0902.0868v2 · doi: 10.48550/arxiv.0902.0868 · pith_short_12: AHBK5NT3IIF3 · pith_short_16: AHBK5NT3IIF3JJF5 · pith_short_8: AHBK5NT3

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/AHBK5NT3IIF3JJF5YWWO6HARGW \
  | 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: 01c2aeb67b420bb4a4bdc5acef1c11359be733a5f9d483447bb13b6bfd90503b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9957d5345638f912193ba90635e457371dd530350ff45004137e0d53f2cf907b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-02-05T12:33:45Z",
    "title_canon_sha256": "2d5b334d26edae8424649d57d5fe8c311fb4c1b569548c5ff7d2b8dc918a2284"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.0868",
    "kind": "arxiv",
    "version": 2
  }
}