Pith Number

pith:HTPEODRI

pith:2013:HTPEODRIOWRYRVX2GJXP4A63EZ

not attested not anchored not stored refs pending

Matroid and Knapsack Center Problems

Danny Z. Chen, Haitao Wang, Hongyu Liang, Jian Li

arxiv:1301.0745 v2 · 2013-01-04 · 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{HTPEODRIOWRYRVX2GJXP4A63EZ}

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	2026-05-18T03:36:26.495087Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cde470e2875a388d6fa326efe03db264d8e6163ea8b0db8ad2e4935db36b07c

Aliases

arxiv: 1301.0745 · arxiv_version: 1301.0745v2 · doi: 10.48550/arxiv.1301.0745 · pith_short_12: HTPEODRIOWRY · pith_short_16: HTPEODRIOWRYRVX2 · pith_short_8: HTPEODRI

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/HTPEODRIOWRYRVX2GJXP4A63EZ \
  | 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: 3cde470e2875a388d6fa326efe03db264d8e6163ea8b0db8ad2e4935db36b07c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1bcc2c67486295f2969b8c75a72d49a57ac7d9edf70abb77065c192a1c90a6ee",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-01-04T15:17:06Z",
    "title_canon_sha256": "e0b08f05b19c7842b5550407cd0697db37e0c68696a9e138e7f8f84279c0a11a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.0745",
    "kind": "arxiv",
    "version": 2
  }
}