Pith Number

pith:LVDSL6U3

pith:2015:LVDSL6U3LJ2XZYNQBKDHOEQVGK

not attested not anchored not stored refs pending

Fano visitors, Fano dimension and orbifold Fano hosts

Kyoung-Seog Lee, Young-Hoon Kiem

arxiv:1504.07810 v4 · 2015-04-29 · math.AG · math.KT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LVDSL6U3LJ2XZYNQBKDHOEQVGK}

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	2026-05-18T00:50:57.834652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d4725fa9b5a757ce1b00a8677121532966bb8a7f8345c702ae787ce15596a03

Aliases

arxiv: 1504.07810 · arxiv_version: 1504.07810v4 · doi: 10.48550/arxiv.1504.07810 · pith_short_12: LVDSL6U3LJ2X · pith_short_16: LVDSL6U3LJ2XZYNQ · pith_short_8: LVDSL6U3

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/LVDSL6U3LJ2XZYNQBKDHOEQVGK \
  | 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: 5d4725fa9b5a757ce1b00a8677121532966bb8a7f8345c702ae787ce15596a03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0049939bc329a754e61d3d5723ed90b7c617474b540a0038bcfc84adbaf02070",
    "cross_cats_sorted": [
      "math.KT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-04-29T11:10:42Z",
    "title_canon_sha256": "c444a0b16f7d626889489429d5630459df9327f509922af049b17c87160619b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07810",
    "kind": "arxiv",
    "version": 4
  }
}