Pith Number

pith:ROUFVNCK

pith:2012:ROUFVNCK2BPFKRL27EPYL7TP2B

not attested not anchored not stored refs pending

Faster SDP hierarchy solvers for local rounding algorithms

Ali Kemal Sinop, Venkatesan Guruswami

arxiv:1207.4372 v2 · 2012-07-18 · 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{ROUFVNCK2BPFKRL27EPYL7TP2B}

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	2026-05-18T02:21:08.230982Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ba85ab44ad05e55457af91f85fe6fd05e5e553b3b9db48c8c760b23340d7903

Aliases

arxiv: 1207.4372 · arxiv_version: 1207.4372v2 · doi: 10.48550/arxiv.1207.4372 · pith_short_12: ROUFVNCK2BPF · pith_short_16: ROUFVNCK2BPFKRL2 · pith_short_8: ROUFVNCK

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/ROUFVNCK2BPFKRL27EPYL7TP2B \
  | 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: 8ba85ab44ad05e55457af91f85fe6fd05e5e553b3b9db48c8c760b23340d7903

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66d36c4f35d2384d4b004be49d528d3ec4fadbd48b42b55a8900ebb12a3e8471",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-07-18T13:21:26Z",
    "title_canon_sha256": "c8c17ccd8f5631cf75197768c5ad505b821664fd1d16230be0d8cd1e952dbaf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4372",
    "kind": "arxiv",
    "version": 2
  }
}