Pith Number

pith:EI4P4UAT

pith:2014:EI4P4UATBMH4SC2BENQRETSINA

not attested not anchored not stored refs pending

Schubert calculus and shifting of interval positroid varieties

Allen Knutson

arxiv:1408.1261 v1 · 2014-08-06 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EI4P4UATBMH4SC2BENQRETSINA}

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	2026-05-18T02:45:47.790852Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2238fe50130b0fc90b412361124e486806251f2f744fb7b1753008e86054a7b0

Aliases

arxiv: 1408.1261 · arxiv_version: 1408.1261v1 · doi: 10.48550/arxiv.1408.1261 · pith_short_12: EI4P4UATBMH4 · pith_short_16: EI4P4UATBMH4SC2B · pith_short_8: EI4P4UAT

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/EI4P4UATBMH4SC2BENQRETSINA \
  | 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: 2238fe50130b0fc90b412361124e486806251f2f744fb7b1753008e86054a7b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4d77f90547f1efd8eb28055d5ea5d8ad5a5b5f71f26d9df969d7de49e2a5431",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-08-06T12:36:24Z",
    "title_canon_sha256": "04c4db2c09741b1ef323b010a84873ec3fdec8f267deefa3f2e7eeb9285ee870"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.1261",
    "kind": "arxiv",
    "version": 1
  }
}