Pith Number

pith:Q6J4QWDO

pith:2014:Q6J4QWDO4NJ3AHFSHIP5ZX76WL

not attested not anchored not stored refs pending

On Unconstrained Quasi-Submodular Function Optimization

Bao-Liang Lu, Jincheng Mei, Kang Zhao

arxiv:1408.4389 v2 · 2014-08-19 · cs.DS · cs.NA · 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{Q6J4QWDO4NJ3AHFSHIP5ZX76WL}

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	2026-05-18T02:37:44.360704Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8793c8586ee353b01cb23a1fdcdffeb2cc8304fdb2167fb78b2bacd4d2c8ce25

Aliases

arxiv: 1408.4389 · arxiv_version: 1408.4389v2 · doi: 10.48550/arxiv.1408.4389 · pith_short_12: Q6J4QWDO4NJ3 · pith_short_16: Q6J4QWDO4NJ3AHFS · pith_short_8: Q6J4QWDO

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/Q6J4QWDO4NJ3AHFSHIP5ZX76WL \
  | 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: 8793c8586ee353b01cb23a1fdcdffeb2cc8304fdb2167fb78b2bacd4d2c8ce25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c7cf41b3fd18daed77b94e9a83424065b8a17a69c479af1640947ba15ca5e64",
    "cross_cats_sorted": [
      "cs.NA",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-08-19T16:43:49Z",
    "title_canon_sha256": "fd9a234dad162dbe7de64736fe6305d2f30d53ffb9f331946f8a06d725cdfc8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.4389",
    "kind": "arxiv",
    "version": 2
  }
}