Pith Number

pith:U7EARBOW

pith:2014:U7EARBOWKOE4HPSHZZYIRDMWXC

not attested not anchored not stored refs pending

On the cohomology of Stover Surface

Amir D\v{z}ambi\'c, Xavier Roulleau

arxiv:1410.8657 v1 · 2014-10-31 · 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{U7EARBOWKOE4HPSHZZYIRDMWXC}

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	2026-05-18T02:38:53.996579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7c80885d65389c3be47ce70888d96b8bc80167a221396260090106b8c7c4f7f

Aliases

arxiv: 1410.8657 · arxiv_version: 1410.8657v1 · doi: 10.48550/arxiv.1410.8657 · pith_short_12: U7EARBOWKOE4 · pith_short_16: U7EARBOWKOE4HPSH · pith_short_8: U7EARBOW

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/U7EARBOWKOE4HPSHZZYIRDMWXC \
  | 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: a7c80885d65389c3be47ce70888d96b8bc80167a221396260090106b8c7c4f7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1eea3f4fc87ce6f3bda90b6ef1f60b37dbb91e3593f2c2c56d5f185afac150e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-10-31T07:42:27Z",
    "title_canon_sha256": "359ac743aa30c840282be468949901da37917fb90fd52b6758bab3cd2782fe14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.8657",
    "kind": "arxiv",
    "version": 1
  }
}