Pith Number

pith:MECVEQCR

pith:2013:MECVEQCRPAJRI5UQUO27T3KOVF

not attested not anchored not stored refs pending

Approximate Constraint Satisfaction Requires Large LP Relaxations

David Steurer, James R. Lee, Prasad Raghavendra, Siu On Chan

arxiv:1309.0563 v3 · 2013-09-03 · cs.CC · cs.DS · math.CO · 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{MECVEQCRPAJRI5UQUO27T3KOVF}

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	2026-05-18T01:21:14.029443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61055240517813147690a3b5f9ed4ea9409110354a71dbcbf80bf413ff2fde2b

Aliases

arxiv: 1309.0563 · arxiv_version: 1309.0563v3 · doi: 10.48550/arxiv.1309.0563 · pith_short_12: MECVEQCRPAJR · pith_short_16: MECVEQCRPAJRI5UQ · pith_short_8: MECVEQCR

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/MECVEQCRPAJRI5UQUO27T3KOVF \
  | 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: 61055240517813147690a3b5f9ed4ea9409110354a71dbcbf80bf413ff2fde2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69045682301010c67b629fd5073884a25cdf4dfec62c7d0428244b8845e95164",
    "cross_cats_sorted": [
      "cs.DS",
      "math.CO",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2013-09-03T00:30:03Z",
    "title_canon_sha256": "f66532f7ca21d7db784b2af6b85cc20ba3bf187e5cccdfa7933c1f7a920a6f7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.0563",
    "kind": "arxiv",
    "version": 3
  }
}