Pith Number

pith:IGVOD3K2

pith:2014:IGVOD3K2WFG7EPLTACDNROQKEC

not attested not anchored not stored refs pending

Differential forms and quadrics of the canonical image

Francesco Zucconi, Luca Rizzi

arxiv:1409.1826 v2 · 2014-09-05 · 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{IGVOD3K2WFG7EPLTACDNROQKEC}

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	2026-05-18T01:20:59.393963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41aae1ed5ab14df23d730086d8ba0a209c8d7610643c86d7d1342c77132114b2

Aliases

arxiv: 1409.1826 · arxiv_version: 1409.1826v2 · doi: 10.48550/arxiv.1409.1826 · pith_short_12: IGVOD3K2WFG7 · pith_short_16: IGVOD3K2WFG7EPLT · pith_short_8: IGVOD3K2

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/IGVOD3K2WFG7EPLTACDNROQKEC \
  | 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: 41aae1ed5ab14df23d730086d8ba0a209c8d7610643c86d7d1342c77132114b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b37c881a91f6e18e592786eff2401b24cc8705c5b4fc98221473fbf7f385a9d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-09-05T14:50:13Z",
    "title_canon_sha256": "a34b3ab769dffc1f48ebc86149b6e17ae76e0b315b269f76a52732d39feb6a15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.1826",
    "kind": "arxiv",
    "version": 2
  }
}