Pith Number

pith:4E7LGK5H

pith:2020:4E7LGK5HJROIA3B3GJQEOTVK77

not attested not anchored not stored refs pending

Double EPW sextics associated to Gushel-Mukai surfaces

Pietro Beri

arxiv:2011.12223 v2 · 2020-11-24 · 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{4E7LGK5HJROIA3B3GJQEOTVK77}

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.

Cited by

1 paper in Pith

Bridgeland-Enriques general K3 surfaces

Receipt and verification

First computed	2026-07-05T09:55:49.883974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e13eb32ba74c5c806c3b3260474eaafff4f35b3973a1746254549fcb31920938

Aliases

arxiv: 2011.12223 · arxiv_version: 2011.12223v2 · doi: 10.48550/arxiv.2011.12223 · pith_short_12: 4E7LGK5HJROI · pith_short_16: 4E7LGK5HJROIA3B3 · pith_short_8: 4E7LGK5H

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/4E7LGK5HJROIA3B3GJQEOTVK77 \
  | 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: e13eb32ba74c5c806c3b3260474eaafff4f35b3973a1746254549fcb31920938

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f837b4e6166fecdcb7582e7678d822aeb5584eee3ddb232eb7f699097080cbab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2020-11-24T17:19:31Z",
    "title_canon_sha256": "8c1cddca8075a7eb0b71cdb1552f05add989d395c02f0d034139b2a7a0a08e5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.12223",
    "kind": "arxiv",
    "version": 2
  }
}