Pith Number

pith:JAY6RWHD

pith:2020:JAY6RWHD44VWYT2LFGG2PPU5EE

not attested not anchored not stored refs pending

Castelnuovo polytopes

Akiyoshi Tsuchiya

arxiv:2010.13617 v6 · 2020-10-26 · math.CO · 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{JAY6RWHD44VWYT2LFGG2PPU5EE}

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	2026-05-20T01:04:47.451955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4831e8d8e3e72b6c4f4b298da7be9d2124fcb2e621ce9c399ecba15b92fb2b38

Aliases

arxiv: 2010.13617 · arxiv_version: 2010.13617v6 · doi: 10.48550/arxiv.2010.13617 · pith_short_12: JAY6RWHD44VW · pith_short_16: JAY6RWHD44VWYT2L · pith_short_8: JAY6RWHD

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/JAY6RWHD44VWYT2LFGG2PPU5EE \
  | 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: 4831e8d8e3e72b6c4f4b298da7be9d2124fcb2e621ce9c399ecba15b92fb2b38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c748fabfa9a0d99eee4e71818330cc6f4076e73ad51badcb884704b6795ccb9",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2020-10-26T14:33:12Z",
    "title_canon_sha256": "70861df4b1bf0f40a964b3287769a7138a265a874304eb4236727bd5070731c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.13617",
    "kind": "arxiv",
    "version": 6
  }
}