Pith Number

pith:RR26BHOC

pith:2013:RR26BHOCT2HUZYP4Y3IRGLRWWG

not attested not anchored not stored refs pending

Bilinkage in codimension $3$ and canonical surfaces of degree $18$ in $\mathbb{P}^5$

Grzegorz Kapustka, Michal Kapustka

arxiv:1312.2824 v3 · 2013-12-10 · 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{RR26BHOCT2HUZYP4Y3IRGLRWWG}

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	2026-05-18T01:49:56.147151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c75e09dc29e8f4ce1fcc6d1132e36b19e8105a3b5a059c6dfcaba09f5a6b5da

Aliases

arxiv: 1312.2824 · arxiv_version: 1312.2824v3 · doi: 10.48550/arxiv.1312.2824 · pith_short_12: RR26BHOCT2HU · pith_short_16: RR26BHOCT2HUZYP4 · pith_short_8: RR26BHOC

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/RR26BHOCT2HUZYP4Y3IRGLRWWG \
  | 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: 8c75e09dc29e8f4ce1fcc6d1132e36b19e8105a3b5a059c6dfcaba09f5a6b5da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82db6155813b1b1981d3b88b3769d826da1f72a7267522fbd7978a109ebac80d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-12-10T15:01:08Z",
    "title_canon_sha256": "a1bbad401834cbbf1959c9af06470e05c653f52bc049a6f1a67092224e7d0feb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.2824",
    "kind": "arxiv",
    "version": 3
  }
}