Pith Number

pith:QYRE3DMV

pith:2020:QYRE3DMVTKUSZRQ2MUCXOEOK2P

not attested not anchored not stored refs pending

Filtering cohomology of ordinary and Lagrangian Grassmannians

Ajmain Yamin, Arjun Nigam, Bhavna Joshi, Chen Zijian, Chuanyi Wang, David Fang, Dylan Harker, Eunice Sukarto, Galen Dorpalen-Barry, Gandhar Kulkarni, Jeffery Yu, Jeremy Ellis, Jiaye Wei, Jonathan Feigert, Kapil Lad, Lance Myers, Leonardo Mendez Villamil, Mabel Gonz\'alez, Ma Mingyang, Matthew Yu, Michael Feigen, Napoleon Wang, Rasiel Chishti, The 2020 Polymath Jr. REU "q-binomials, the Grassmannian group": Huda Ahmed, Tudor Popescu, Victor Reiner, Yuanning Zhang, Yu-Cheng Chiu, Zhen Liu, Zijian Rong, Ziye Zhu

arxiv:2011.03179 v2 · 2020-11-06 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QYRE3DMVTKUSZRQ2MUCXOEOK2P}

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	2026-07-05T04:47:06.347138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86224d8d959aa92cc61a65057711cad3f7b3011080ae23b3b9b0f267bff6bd1e

Aliases

arxiv: 2011.03179 · arxiv_version: 2011.03179v2 · doi: 10.48550/arxiv.2011.03179 · pith_short_12: QYRE3DMVTKUS · pith_short_16: QYRE3DMVTKUSZRQ2 · pith_short_8: QYRE3DMV

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/QYRE3DMVTKUSZRQ2MUCXOEOK2P \
  | 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: 86224d8d959aa92cc61a65057711cad3f7b3011080ae23b3b9b0f267bff6bd1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5d9564abcb388bf005a8a843b62895bf3cbc7e0611d645ebc7f36ffb66349d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2020-11-06T03:57:03Z",
    "title_canon_sha256": "f27aa12bec0b1efe4d8899690ad2482c910c4ef5fe263f8496b82447ca1fbea4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.03179",
    "kind": "arxiv",
    "version": 2
  }
}