Pith Number

pith:UPXIVORV

pith:2022:UPXIVORVFOY4EC43R5EXY37SXD

not attested not anchored not stored refs pending

First moments of a polyhedron clipped by a paraboloid

Austin Han, Berend van Wachem, Fabien Evrard, Olivier Desjardins, Robert Chiodi

arxiv:2210.07772 v2 · 2022-09-20 · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UPXIVORVFOY4EC43R5EXY37SXD}

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	2026-07-05T07:37:27.638138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3ee8aba352bb1c20b9b8f497c6ff2b8d32bd4e7d8be52082fb3ba7cd70fefad

Aliases

arxiv: 2210.07772 · arxiv_version: 2210.07772v2 · doi: 10.48550/arxiv.2210.07772 · pith_short_12: UPXIVORVFOY4 · pith_short_16: UPXIVORVFOY4EC43 · pith_short_8: UPXIVORV

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/UPXIVORVFOY4EC43R5EXY37SXD \
  | 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: a3ee8aba352bb1c20b9b8f497c6ff2b8d32bd4e7d8be52082fb3ba7cd70fefad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f4283fca5b9e7922310e8c420cd11e49f8d48b271446ad4ada9e003269fe41d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2022-09-20T23:21:31Z",
    "title_canon_sha256": "7db6053248938f90494aa73b12badb4a796eecfba033c81d3727e42c4547efea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2210.07772",
    "kind": "arxiv",
    "version": 2
  }
}