Pith Number

pith:OWG2WA5W

pith:2018:OWG2WA5WQBMEIR7W2QUYR6OQ2O

not attested not anchored not stored refs pending

Seshadri constants and Grassmann bundles over curves

D. S. Nagaraj, Indranil Biswas, Krishna Hanumanthu, Peter E. Newstead

arxiv:1803.08648 v2 · 2018-03-23 · 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{OWG2WA5WQBMEIR7W2QUYR6OQ2O}

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	2026-05-17T23:45:20.925677Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

758dab03b680584447f6d42988f9d0d397f48856a33b37158013955a420cccb6

Aliases

arxiv: 1803.08648 · arxiv_version: 1803.08648v2 · doi: 10.48550/arxiv.1803.08648 · pith_short_12: OWG2WA5WQBME · pith_short_16: OWG2WA5WQBMEIR7W · pith_short_8: OWG2WA5W

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/OWG2WA5WQBMEIR7W2QUYR6OQ2O \
  | 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: 758dab03b680584447f6d42988f9d0d397f48856a33b37158013955a420cccb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "299e3b782ef3ec9cb6d6671011cca05a7eb4bcfce37567ab5ecd15b835ba0f2e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-03-23T03:54:16Z",
    "title_canon_sha256": "6d87bf52b40df8bd4c83ddc08c0f91f55295a3cdd22db47019edd3372ffad69f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08648",
    "kind": "arxiv",
    "version": 2
  }
}