Pith Number

pith:WWOGOUBN

pith:2018:WWOGOUBNPDQJMUINRL43D77LLX

not attested not anchored not stored refs pending

Field extensions, Derivations, and Matroids over Skew Hyperfields

Rudi Pendavingh

arxiv:1802.02447 v3 · 2018-02-07 · 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{WWOGOUBNPDQJMUINRL43D77LLX}

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	2026-05-18T00:17:59.621803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b59c67502d78e096510d8af9b1ffeb5df17d502f58c1869b4018a439514362b1

Aliases

arxiv: 1802.02447 · arxiv_version: 1802.02447v3 · doi: 10.48550/arxiv.1802.02447 · pith_short_12: WWOGOUBNPDQJ · pith_short_16: WWOGOUBNPDQJMUIN · pith_short_8: WWOGOUBN

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/WWOGOUBNPDQJMUINRL43D77LLX \
  | 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: b59c67502d78e096510d8af9b1ffeb5df17d502f58c1869b4018a439514362b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92e8abd5ef23b46a67076c823fd6bda0d5656c197447adbb7f78cf61538521b7",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-02-07T14:45:57Z",
    "title_canon_sha256": "b0e9442c9cd0b25da7ddeaa4396bedc0ab4346b43e8feb313c47c126f243ab8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02447",
    "kind": "arxiv",
    "version": 3
  }
}