Pith Number

pith:6BTWWPPH

pith:2017:6BTWWPPHK3NMSFSSE3HR5S6DRK

not attested not anchored not stored refs pending

Face module for realizable Z-matroids

Ivan Martino

arxiv:1705.05816 v3 · 2017-05-16 · math.CO · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6BTWWPPHK3NMSFSSE3HR5S6DRK}

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	2026-05-18T00:25:42.113128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0676b3de756dac9165226cf1ecbc38a9a2efc24e0c024cf47f9748ff16284b0

Aliases

arxiv: 1705.05816 · arxiv_version: 1705.05816v3 · doi: 10.48550/arxiv.1705.05816 · pith_short_12: 6BTWWPPHK3NM · pith_short_16: 6BTWWPPHK3NMSFSS · pith_short_8: 6BTWWPPH

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/6BTWWPPHK3NMSFSSE3HR5S6DRK \
  | 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: f0676b3de756dac9165226cf1ecbc38a9a2efc24e0c024cf47f9748ff16284b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1eecd837147092c04cab8e3b99dcb63009107e11b1b5a52aec6bc1b721f90d5c",
    "cross_cats_sorted": [
      "math.AC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-05-16T17:39:04Z",
    "title_canon_sha256": "766d30d215af8c6777b57eb106669152a7d70cdb2c0d3634833f35bca7348e0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.05816",
    "kind": "arxiv",
    "version": 3
  }
}