Pith Number

pith:CT4VEK5Y

pith:2025:CT4VEK5YU4CREUS3VALNYABCDZ

not attested not anchored not stored refs pending

Fault-Tolerant Matroid Bases

Fedor V. Fomin, Laure Morelle, Matthias Bentert, Petr A. Golovach

arxiv:2506.22010 v1 · 2025-06-27 · cs.DS · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CT4VEK5YU4CREUS3VALNYABCDZ}

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	2026-07-05T11:28:20.369215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14f9522bb8a70512525ba816dc00221e58e5f862034980ffe0ce261bf7876568

Aliases

arxiv: 2506.22010 · arxiv_version: 2506.22010v1 · doi: 10.48550/arxiv.2506.22010 · pith_short_12: CT4VEK5YU4CR · pith_short_16: CT4VEK5YU4CREUS3 · pith_short_8: CT4VEK5Y

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/CT4VEK5YU4CREUS3VALNYABCDZ \
  | 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: 14f9522bb8a70512525ba816dc00221e58e5f862034980ffe0ce261bf7876568

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "402e1b38796afb66d3cdf8bb9eb597f86074e8ba4a4c85331aa2ca6f0abdaa43",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2025-06-27T08:24:27Z",
    "title_canon_sha256": "0c801a123522fb5f2fe08ecf3fa90a0f5e9d2bf6f1fbfe70e5965e7b958e28d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.22010",
    "kind": "arxiv",
    "version": 1
  }
}