Pith Number

pith:VNPCVECD

pith:2018:VNPCVECDYOT36CBARTFWEAE4TG

not attested not anchored not stored refs pending

Vanishing cohomology on a double cover

Gian Pietro Pirola, Yongnam Lee

arxiv:1807.02646 v2 · 2018-07-07 · 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{VNPCVECDYOT36CBARTFWEAE4TG}

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.

Cited by

1 paper in Pith

Morphisms from a very general hypersurface

Receipt and verification

First computed	2026-07-05T01:44:36.290066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab5e2a9043c3a7bf08208ccb62009c99bd26378d290db04dcb873b7090b6391d

Aliases

arxiv: 1807.02646 · arxiv_version: 1807.02646v2 · doi: 10.48550/arxiv.1807.02646 · pith_short_12: VNPCVECDYOT3 · pith_short_16: VNPCVECDYOT36CBA · pith_short_8: VNPCVECD

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/VNPCVECDYOT36CBARTFWEAE4TG \
  | 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: ab5e2a9043c3a7bf08208ccb62009c99bd26378d290db04dcb873b7090b6391d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af85c6ad24cd781f59c814bc0999c6619fd854439f1a2c8026ace87876a9b396",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-07-07T11:05:25Z",
    "title_canon_sha256": "5145086dc09c098c357ef1b3e6df662ea40e7c9ea6d0997377d4cb31a7fb8274"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.02646",
    "kind": "arxiv",
    "version": 2
  }
}