Pith Number

pith:BHU2E23N

pith:2015:BHU2E23NEGFRSKFTLJFEHSFQD5

not attested not anchored not stored refs pending

Semi-stable extensions over 1-dimensional bases

Chenyang Xu, J\'anos Koll\'ar, Johannes Nicaise

arxiv:1510.02446 v1 · 2015-10-08 · 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{BHU2E23NEGFRSKFTLJFEHSFQD5}

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	2026-05-18T01:30:43.702825Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09e9a26b6d218b1928b35a4a43c8b01f64eb44d17140f777fdd568084f45ef2e

Aliases

arxiv: 1510.02446 · arxiv_version: 1510.02446v1 · doi: 10.48550/arxiv.1510.02446 · pith_short_12: BHU2E23NEGFR · pith_short_16: BHU2E23NEGFRSKFT · pith_short_8: BHU2E23N

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/BHU2E23NEGFRSKFTLJFEHSFQD5 \
  | 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: 09e9a26b6d218b1928b35a4a43c8b01f64eb44d17140f777fdd568084f45ef2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d04fafacc893e87df6d0775726cea84adfda981c9535de5f98a0e9a6f317e598",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-10-08T19:02:18Z",
    "title_canon_sha256": "a1ddb241a902035449379284273ddf3b0662cc227ac8827fe6a3d3ead322676f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.02446",
    "kind": "arxiv",
    "version": 1
  }
}