Pith Number

pith:KQWA6U4S

pith:2014:KQWA6U4SPMZGORWXYZDX45ZM4P

not attested not anchored not stored refs pending

On Seshadri constants of varieties with large fundamental group

Gabriele Di Cerbo, Luca F. Di Cerbo

arxiv:1411.1033 v4 · 2014-11-04 · math.CV · math.AG · 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{KQWA6U4SPMZGORWXYZDX45ZM4P}

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	2026-05-17T23:53:01.737855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

542c0f53927b326746d7c6477e772ce3c76011f310a5a5af95791b5dcd0c5ce8

Aliases

arxiv: 1411.1033 · arxiv_version: 1411.1033v4 · doi: 10.48550/arxiv.1411.1033 · pith_short_12: KQWA6U4SPMZG · pith_short_16: KQWA6U4SPMZGORWX · pith_short_8: KQWA6U4S

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/KQWA6U4SPMZGORWXYZDX45ZM4P \
  | 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: 542c0f53927b326746d7c6477e772ce3c76011f310a5a5af95791b5dcd0c5ce8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e6931bd43ad7a77467da071cf50a4f08684c67c165755d3b15f0463d2d582cf",
    "cross_cats_sorted": [
      "math.AG",
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2014-11-04T20:29:46Z",
    "title_canon_sha256": "27a397e73d7d9beab1014b2a2752862cd5f27be0c5a727c0cfcb13bc19a22a87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.1033",
    "kind": "arxiv",
    "version": 4
  }
}