Pith Number

pith:4X53VBXU

pith:2018:4X53VBXUSENWU5L5MBRRGG6F6A

not attested not anchored not stored refs pending

The Varchenko Determinant for Oriented Matroids

Volkmar Welker, Winfried Hochst\"attler

arxiv:1805.07183 v2 · 2018-05-18 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4X53VBXUSENWU5L5MBRRGG6F6A}

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	2026-05-17T23:57:31.925136Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5fbba86f4911b6a757d6063131bc5f028558c16d6d00dad97ee12fa26597044

Aliases

arxiv: 1805.07183 · arxiv_version: 1805.07183v2 · doi: 10.48550/arxiv.1805.07183 · pith_short_12: 4X53VBXUSENW · pith_short_16: 4X53VBXUSENWU5L5 · pith_short_8: 4X53VBXU

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/4X53VBXUSENWU5L5MBRRGG6F6A \
  | 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: e5fbba86f4911b6a757d6063131bc5f028558c16d6d00dad97ee12fa26597044

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abe05451f4de17b6c1218356520f9a02eae7af7dabf3cdd633d28a7c52766c4e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-05-18T13:01:46Z",
    "title_canon_sha256": "2695168829cded30ca78381291a10bcb5f335f9f9c09c8c500d77d0874189393"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.07183",
    "kind": "arxiv",
    "version": 2
  }
}