Pith Number

pith:2MMKJMLJ

pith:2016:2MMKJMLJ24ZIB3AAWC2YC2J4J3

not attested not anchored not stored refs pending

The Hodge diamond of O'Grady's 6-dimensional example

Antonio Rapagnetta, Giovanni Mongardi, Giulia Sacc\`a

arxiv:1603.06731 v1 · 2016-03-22 · 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{2MMKJMLJ24ZIB3AAWC2YC2J4J3}

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	2026-05-17T23:53:34.235343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d318a4b169d73280ec00b0b581693c4efb9cd1688ced5c6027739774d1a75ee0

Aliases

arxiv: 1603.06731 · arxiv_version: 1603.06731v1 · doi: 10.48550/arxiv.1603.06731 · pith_short_12: 2MMKJMLJ24ZI · pith_short_16: 2MMKJMLJ24ZIB3AA · pith_short_8: 2MMKJMLJ

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/2MMKJMLJ24ZIB3AAWC2YC2J4J3 \
  | 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: d318a4b169d73280ec00b0b581693c4efb9cd1688ced5c6027739774d1a75ee0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d955d0acfeb590977b1bd1d6183f3f74702a542998663379d1268244ce345471",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-03-22T10:50:40Z",
    "title_canon_sha256": "fce6cbfe515c679d4e7df3ef9724fffde46b08b93df9d7511f4bf005ae1cad32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.06731",
    "kind": "arxiv",
    "version": 1
  }
}