Pith Number

pith:JQEIQJKD

pith:2018:JQEIQJKDTV55UR5E35CASRBBEN

not attested not anchored not stored refs pending

Oriented Schubert calculus in Chow-Witt rings of Grassmannians

Matthias Wendt

arxiv:1808.07296 v1 · 2018-08-22 · math.AG · math.AT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JQEIQJKDTV55UR5E35CASRBBEN}

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	2026-05-18T00:07:29.273200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c088825439d7bda47a4df440944212375ab188a41d0012b005f5ce7ac8a2db2

Aliases

arxiv: 1808.07296 · arxiv_version: 1808.07296v1 · doi: 10.48550/arxiv.1808.07296 · pith_short_12: JQEIQJKDTV55 · pith_short_16: JQEIQJKDTV55UR5E · pith_short_8: JQEIQJKD

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/JQEIQJKDTV55UR5E35CASRBBEN \
  | 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: 4c088825439d7bda47a4df440944212375ab188a41d0012b005f5ce7ac8a2db2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19c31ce609c4ab9ba167992e4832adf6a9491dc886d8d7548ac887cbf85546f9",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-08-22T09:40:45Z",
    "title_canon_sha256": "b9a70a1f04e3c4abf373451606909885e3b88b47dca6ead8b6b9e4edd12423ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.07296",
    "kind": "arxiv",
    "version": 1
  }
}