Pith Number

pith:GNL4GT4E

pith:2005:GNL4GT4EHXMSBQ4XNSGM62SD7L

not attested not anchored not stored refs pending

The de Rham-Federer Theory of Differential Characters and Character Duality

F. Reese Harvey, H. Blaine Lawson, John Zweck, Jr.

arxiv:math/0512251 v1 · 2005-12-12 · 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{GNL4GT4EHXMSBQ4XNSGM62SD7L}

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	2026-05-18T00:22:49.558395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3357c34f843dd920c3976c8ccf6a43fafa48f939423af30c8261e47c557200d2

Aliases

arxiv: math/0512251 · arxiv_version: math/0512251v1 · doi: 10.48550/arxiv.math/0512251 · pith_short_12: GNL4GT4EHXMS · pith_short_16: GNL4GT4EHXMSBQ4X · pith_short_8: GNL4GT4E

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/GNL4GT4EHXMSBQ4XNSGM62SD7L \
  | 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: 3357c34f843dd920c3976c8ccf6a43fafa48f939423af30c8261e47c557200d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f670bfb47998079a8cd22e7bcfd3904a2032b7fbdc3f618775e511a61f6230e1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2005-12-12T23:12:50Z",
    "title_canon_sha256": "2d4472f4165ec34e5b269f2942ebacfb67f399763c6c5653417caf41405559da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0512251",
    "kind": "arxiv",
    "version": 1
  }
}