Pith Number

pith:4QWA2TE4

pith:2012:4QWA2TE4SKCTYYTDLJEDBOJ7DR

not attested not anchored not stored refs pending

Advances on Matroid Secretary Problems: Free Order Model and Laminar Case

Jos\'e A. Soto, Patrick Jaillet, Rico Zenklusen

arxiv:1207.1333 v2 · 2012-07-05 · cs.DS · cs.DM · cs.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4QWA2TE4SKCTYYTDLJEDBOJ7DR}

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	2026-05-18T02:49:18.647605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e42c0d4c9c92853c62635a4830b93f1c6f1b29c4859b2dfb37acb9e6100cb5db

Aliases

arxiv: 1207.1333 · arxiv_version: 1207.1333v2 · doi: 10.48550/arxiv.1207.1333 · pith_short_12: 4QWA2TE4SKCT · pith_short_16: 4QWA2TE4SKCTYYTD · pith_short_8: 4QWA2TE4

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/4QWA2TE4SKCTYYTDLJEDBOJ7DR \
  | 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: e42c0d4c9c92853c62635a4830b93f1c6f1b29c4859b2dfb37acb9e6100cb5db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12a5ea6d8b4b313442d872f798e889510002b6d1451cd14605e64e4696b1abab",
    "cross_cats_sorted": [
      "cs.DM",
      "cs.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-07-05T19:23:47Z",
    "title_canon_sha256": "2074918e287888646c07d05bc3bf822086330fd4f6278182b8d55328e9067e20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1333",
    "kind": "arxiv",
    "version": 2
  }
}