Pith Number

pith:QWE3MB3V

pith:2009:QWE3MB3VWFI6ZZGRZ4KBG6XLLG

not attested not anchored not stored refs pending

Connes-Chern character for manifolds with boundary and eta cochains

Henri Moscovici, Markus J. Pflaum, Matthias Lesch

arxiv:0912.0194 v3 · 2009-12-01 · math.OA · 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{QWE3MB3VWFI6ZZGRZ4KBG6XLLG}

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	2026-05-18T03:21:20.927994Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8589b60775b151ece4d1cf14137aeb59a94a5c5e3f82c4f7253134b2271789a2

Aliases

arxiv: 0912.0194 · arxiv_version: 0912.0194v3 · doi: 10.48550/arxiv.0912.0194 · pith_short_12: QWE3MB3VWFI6 · pith_short_16: QWE3MB3VWFI6ZZGR · pith_short_8: QWE3MB3V

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/QWE3MB3VWFI6ZZGRZ4KBG6XLLG \
  | 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: 8589b60775b151ece4d1cf14137aeb59a94a5c5e3f82c4f7253134b2271789a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0091bf9ac861af8289069ead4ea81eb59f549f1c83f7018dc4ceffbd9992a7c",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2009-12-01T16:55:22Z",
    "title_canon_sha256": "432ecfbf14fedff2d6435819cdb4f81811739709f3d9d3145ca594a11c532dae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0194",
    "kind": "arxiv",
    "version": 3
  }
}