Pith Number

pith:XJUHCUNB

pith:2025:XJUHCUNBDZ4B4UAMIKDUUWKQAO

not attested not anchored not stored refs pending

Linear Matroid Intersection is in Catalytic Logspace

Antoine Vinciguerra, Aryan Agarwala, Yaroslav Alekseev

arxiv:2509.06435 v2 · 2025-09-08 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XJUHCUNBDZ4B4UAMIKDUUWKQAO}

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	2026-07-05T12:07:12.399214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba687151a11e781e500c42874a595003b7766b3adc260b5012920eba219b04f7

Aliases

arxiv: 2509.06435 · arxiv_version: 2509.06435v2 · doi: 10.48550/arxiv.2509.06435 · pith_short_12: XJUHCUNBDZ4B · pith_short_16: XJUHCUNBDZ4B4UAM · pith_short_8: XJUHCUNB

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/XJUHCUNBDZ4B4UAMIKDUUWKQAO \
  | 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: ba687151a11e781e500c42874a595003b7766b3adc260b5012920eba219b04f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bedd017648cf6f6a27ea486e54e9d32da30a9eb85a3dc9ec51539f02753eda2d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2025-09-08T08:29:16Z",
    "title_canon_sha256": "93c751baf53437d6d9764f05c84897194c2d5826042372c4da4d0f3ae0db1f93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.06435",
    "kind": "arxiv",
    "version": 2
  }
}