Pith Number

pith:2THRBYE2

pith:2015:2THRBYE2KRP6MTKKA4R2GCJH4X

not attested not anchored not stored refs pending

Projective varieties of maximal sectional regularity

Euisung Park, Markus Brodmann, Peter Schenzel, Wanseok Lee

arxiv:1502.01769 v1 · 2015-02-06 · 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{2THRBYE2KRP6MTKKA4R2GCJH4X}

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	2026-05-18T02:27:50.685727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4cf10e09a545fe64d4a0723a30927e5e0c1d951afdfbe93acdcd1c45e658067

Aliases

arxiv: 1502.01769 · arxiv_version: 1502.01769v1 · doi: 10.48550/arxiv.1502.01769 · pith_short_12: 2THRBYE2KRP6 · pith_short_16: 2THRBYE2KRP6MTKK · pith_short_8: 2THRBYE2

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/2THRBYE2KRP6MTKKA4R2GCJH4X \
  | 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: d4cf10e09a545fe64d4a0723a30927e5e0c1d951afdfbe93acdcd1c45e658067

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a39da5482857a0e179de41a7c50f7b64845af2d248cdd0c9ada6146fc26fbdd6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-02-06T01:42:48Z",
    "title_canon_sha256": "f78c46a22cdb93451c65fa0151297c5ac58173947833a7d9d07526655ade60bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.01769",
    "kind": "arxiv",
    "version": 1
  }
}