Pith Number

pith:Q2IDKADH

pith:2017:Q2IDKADHP3KU5MF2B4XH4PC2B2

not attested not anchored not stored refs pending

On the double EPW sextic associated to a Gushel-Mukai fourfold

Laura Pertusi

arxiv:1709.02144 v2 · 2017-09-07 · 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{Q2IDKADHP3KU5MF2B4XH4PC2B2}

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	2026-07-04T23:51:17.216373Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86903500677ed54eb0ba0f2e7e3c5a0ea80daafe38f0eae01489da71091a5ca7

Aliases

arxiv: 1709.02144 · arxiv_version: 1709.02144v2 · doi: 10.48550/arxiv.1709.02144 · pith_short_12: Q2IDKADHP3KU · pith_short_16: Q2IDKADHP3KU5MF2 · pith_short_8: Q2IDKADH

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/Q2IDKADHP3KU5MF2B4XH4PC2B2 \
  | 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: 86903500677ed54eb0ba0f2e7e3c5a0ea80daafe38f0eae01489da71091a5ca7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2114d003bf8709d4d829ddc54a2685997a0aa0e103ba0d1ed90ff86836305af1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-09-07T08:59:16Z",
    "title_canon_sha256": "11e354ca7e961afcf13badd6f539db42fbb9b69acf300a47983e453b909b8429"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02144",
    "kind": "arxiv",
    "version": 2
  }
}