Pith Number

pith:LM7KKWQG

pith:2015:LM7KKWQGZXXT2SY6AIZRKEEVKT

not attested not anchored not stored refs pending

Online Matroid Intersection: Beating Half for Random Arrival

Guru Guruganesh, Sahil Singla

arxiv:1512.06271 v4 · 2015-12-19 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LM7KKWQGZXXT2SY6AIZRKEEVKT}

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	2026-05-18T00:23:09.605399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b3ea55a06cdef3d4b1e023315109554f8aeac5fd033188a55894af810f15685

Aliases

arxiv: 1512.06271 · arxiv_version: 1512.06271v4 · doi: 10.48550/arxiv.1512.06271 · pith_short_12: LM7KKWQGZXXT · pith_short_16: LM7KKWQGZXXT2SY6 · pith_short_8: LM7KKWQG

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/LM7KKWQGZXXT2SY6AIZRKEEVKT \
  | 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: 5b3ea55a06cdef3d4b1e023315109554f8aeac5fd033188a55894af810f15685

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "760ce603de9316157f47404392f4cc85a31eb0f2cf4c647872d1be5bed56eb77",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-12-19T17:09:41Z",
    "title_canon_sha256": "a261e17fdb2de909f23a0cb1e1e5b089746c6bbf527bf84074d9f76093316fcd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.06271",
    "kind": "arxiv",
    "version": 4
  }
}