Pith Number

pith:46YOFCPW

pith:2015:46YOFCPWRRZIUWOFCDVPXD6IUP

not attested not anchored not stored refs pending

Improved Approximation Algorithms for k-Submodular Function Maximization

Satoru Iwata, Shin-ichi Tanigawa, Yuichi Yoshida

arxiv:1502.07406 v1 · 2015-02-26 · 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{46YOFCPWRRZIUWOFCDVPXD6IUP}

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	2026-05-18T02:26:09.880134Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e7b0e289f68c728a59c510eafb8fc8a3c70bf4ac3da1f38fad6b3a6dbfcf3156

Aliases

arxiv: 1502.07406 · arxiv_version: 1502.07406v1 · doi: 10.48550/arxiv.1502.07406 · pith_short_12: 46YOFCPWRRZI · pith_short_16: 46YOFCPWRRZIUWOF · pith_short_8: 46YOFCPW

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/46YOFCPWRRZIUWOFCDVPXD6IUP \
  | 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: e7b0e289f68c728a59c510eafb8fc8a3c70bf4ac3da1f38fad6b3a6dbfcf3156

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57dd4a4bc79a6f97ea2d95c8d8f6d04752617534d2be4937d611ee6e6f4f6480",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-02-26T00:09:23Z",
    "title_canon_sha256": "2596224293182828cc7393e2a07e80db52be6048cd62fb881d0d3da07e0fe77d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07406",
    "kind": "arxiv",
    "version": 1
  }
}