Pith Number

pith:GIZGQCXM

pith:2013:GIZGQCXMC564YSVMXXM4YR7MSM

not attested not anchored not stored refs pending

The set of jumping conics of a locally free sheaf of dimension 2 on $P^2$

Dmitry Logachev

arxiv:1301.1866 v1 · 2013-01-09 · 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{GIZGQCXMC564YSVMXXM4YR7MSM}

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	2026-05-18T03:36:55.801811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3232680aec177dcc4aacbdd9cc47ec932c21e8ef4ea8e6d68c7dd132a90d6b14

Aliases

arxiv: 1301.1866 · arxiv_version: 1301.1866v1 · doi: 10.48550/arxiv.1301.1866 · pith_short_12: GIZGQCXMC564 · pith_short_16: GIZGQCXMC564YSVM · pith_short_8: GIZGQCXM

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/GIZGQCXMC564YSVMXXM4YR7MSM \
  | 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: 3232680aec177dcc4aacbdd9cc47ec932c21e8ef4ea8e6d68c7dd132a90d6b14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59bb43e572e35a299d7675eab8681d310a9c76bc2441cc6cf2554c1589b70a81",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-01-09T14:34:09Z",
    "title_canon_sha256": "6bbecffeb7ef40f2bdc48a76a2710c9ce8447a3b5630ed39adb26892bf39ce6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1866",
    "kind": "arxiv",
    "version": 1
  }
}