Pith Number

pith:EY5CHCAN

pith:2011:EY5CHCANIXMVSGEXWQII7N4EFC

not attested not anchored not stored refs pending

Covered by Lines and Conic Connected Varieties

Alex Massarenti, Saeed Tafazolian, Simone Marchesi

arxiv:1105.5918 v2 · 2011-05-30 · 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{EY5CHCANIXMVSGEXWQII7N4EFC}

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	2026-05-18T03:24:52.770482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

263a23880d45d9591897b4108fb78428bdbe874d3759062f86068e683fc4590b

Aliases

arxiv: 1105.5918 · arxiv_version: 1105.5918v2 · doi: 10.48550/arxiv.1105.5918 · pith_short_12: EY5CHCANIXMV · pith_short_16: EY5CHCANIXMVSGEX · pith_short_8: EY5CHCAN

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/EY5CHCANIXMVSGEXWQII7N4EFC \
  | 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: 263a23880d45d9591897b4108fb78428bdbe874d3759062f86068e683fc4590b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e78d038ed9cba8a8f6c49bef8123e6fc63a093c1dd389c4390ca85adc748884d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-05-30T09:47:39Z",
    "title_canon_sha256": "dacb8f336aee735ba552eaae1506ebe6395bf1d325650b3c089f0bcf7f19e2d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.5918",
    "kind": "arxiv",
    "version": 2
  }
}