Pith Number

pith:N4FT4LXX

pith:2011:N4FT4LXXQDAUR3OIMOBAWQUO2I

not attested not anchored not stored refs pending

The Simulated Greedy Algorithm for Several Submodular Matroid Secretary Problems

Bo Tang, Tengyu Ma, Yajun Wang

arxiv:1107.2188 v3 · 2011-07-12 · 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{N4FT4LXXQDAUR3OIMOBAWQUO2I}

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	2026-05-18T03:32:32.001309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f0b3e2ef780c148edc863820b428ed23d4a28f22d7473b57c64cbb65c3bbc7a

Aliases

arxiv: 1107.2188 · arxiv_version: 1107.2188v3 · doi: 10.48550/arxiv.1107.2188 · pith_short_12: N4FT4LXXQDAU · pith_short_16: N4FT4LXXQDAUR3OI · pith_short_8: N4FT4LXX

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/N4FT4LXXQDAUR3OIMOBAWQUO2I \
  | 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: 6f0b3e2ef780c148edc863820b428ed23d4a28f22d7473b57c64cbb65c3bbc7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf91049b536f64c5aca0e7fd94feb37c93276ebf610a8fdc52215428060eb85c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-07-12T04:35:02Z",
    "title_canon_sha256": "bccf4cd0d01042eea4def4b26c0e03cc1c7ddd4159f5fb3acf5ae72a92ea11f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2188",
    "kind": "arxiv",
    "version": 3
  }
}