Pith Number

pith:SO2GZQLL

pith:2014:SO2GZQLLCIBACYLJNFYZKVMOK6

not attested not anchored not stored refs pending

Sparsity-Constrained Transportation Problem

Annie I. Chen, Stephen C. Graves

arxiv:1402.2309 v1 · 2014-02-10 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SO2GZQLLCIBACYLJNFYZKVMOK6}

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	2026-05-18T02:59:31.192860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93b46cc16b1202016169697195558e57b9932fb43b5918e2e1e5bb91c3cb82a9

Aliases

arxiv: 1402.2309 · arxiv_version: 1402.2309v1 · doi: 10.48550/arxiv.1402.2309 · pith_short_12: SO2GZQLLCIBA · pith_short_16: SO2GZQLLCIBACYLJ · pith_short_8: SO2GZQLL

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/SO2GZQLLCIBACYLJNFYZKVMOK6 \
  | 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: 93b46cc16b1202016169697195558e57b9932fb43b5918e2e1e5bb91c3cb82a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc61e2ebcfdc89082cf1c62cf90fc81c01e3630496fccc134146413192149b00",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-02-10T21:23:58Z",
    "title_canon_sha256": "78db7929d254c8580986248e24bdd842f79c919ec8c017994621ea2a1a1469e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2309",
    "kind": "arxiv",
    "version": 1
  }
}