Pith Number

pith:DJHVBU6M

pith:2014:DJHVBU6MOA6STBPU5BLL6GWKDQ

not attested not anchored not stored refs pending

Birational geometry via moduli spaces

Ivan Cheltsov, Ludmil Katzarkov, Victor Przyjalkowski

arxiv:1405.3374 v1 · 2014-05-14 · 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{DJHVBU6MOA6STBPU5BLL6GWKDQ}

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	2026-05-18T02:51:56.223241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a4f50d3cc703d2985f4e856bf1aca1c3693a1f4c3eef9fdc1e16116dd3ca718

Aliases

arxiv: 1405.3374 · arxiv_version: 1405.3374v1 · doi: 10.48550/arxiv.1405.3374 · pith_short_12: DJHVBU6MOA6S · pith_short_16: DJHVBU6MOA6STBPU · pith_short_8: DJHVBU6M

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/DJHVBU6MOA6STBPU5BLL6GWKDQ \
  | 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: 1a4f50d3cc703d2985f4e856bf1aca1c3693a1f4c3eef9fdc1e16116dd3ca718

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e0018a070df1828e71458a730f811ad42fb4b8c0bcaaf4946543b799ead5d09",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-05-14T06:17:39Z",
    "title_canon_sha256": "387e757bf5154d26901825cf2b9ef6cd68ec090252ab7affdd04df430149f38e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.3374",
    "kind": "arxiv",
    "version": 1
  }
}