Pith Number

pith:SWZ5W5DA

pith:2016:SWZ5W5DAM6KWLWU3YE46P4F653

not attested not anchored not stored refs pending

Beating the SDP bound for the floor layout problem: A simple combinatorial idea

Joey Huchette, Juan Pablo Vielma, Santanu S. Dey

arxiv:1602.07802 v2 · 2016-02-25 · 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{SWZ5W5DAM6KWLWU3YE46P4F653}

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	2026-05-18T00:46:32.011452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95b3db7460679565da9bc139e7f0beeec9956621247c5d3b8365b25d879f63a9

Aliases

arxiv: 1602.07802 · arxiv_version: 1602.07802v2 · doi: 10.48550/arxiv.1602.07802 · pith_short_12: SWZ5W5DAM6KW · pith_short_16: SWZ5W5DAM6KWLWU3 · pith_short_8: SWZ5W5DA

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/SWZ5W5DAM6KWLWU3YE46P4F653 \
  | 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: 95b3db7460679565da9bc139e7f0beeec9956621247c5d3b8365b25d879f63a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95c2b6eb9d597b3910df53b78c3cadf767bcd765b32d5ab1f54a21d68d2a0e27",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2016-02-25T05:27:47Z",
    "title_canon_sha256": "a5ba3cfd678975b495e9b43b7eb8afb0d4af7acefc8cf5b66422b68e5b1838ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.07802",
    "kind": "arxiv",
    "version": 2
  }
}