Pith Number

pith:XXVTVVMF

pith:2012:XXVTVVMFYZDJ3WEFJEQUEAYCXU

not attested not anchored not stored refs pending

Faster and Simpler Width-Independent Parallel Algorithms for Positive Semidefinite Programming

Kanat Tangwongsan, Peng Zhang, Richard Peng

arxiv:1201.5135 v3 · 2012-01-24 · cs.DS · cs.DC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XXVTVVMFYZDJ3WEFJEQUEAYCXU}

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	2026-05-18T01:20:18.197066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdeb3ad585c6469dd8854921420302bd17ca2b71b78e7c2e83ac4b93d7f28361

Aliases

arxiv: 1201.5135 · arxiv_version: 1201.5135v3 · doi: 10.48550/arxiv.1201.5135 · pith_short_12: XXVTVVMFYZDJ · pith_short_16: XXVTVVMFYZDJ3WEF · pith_short_8: XXVTVVMF

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/XXVTVVMFYZDJ3WEFJEQUEAYCXU \
  | 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: bdeb3ad585c6469dd8854921420302bd17ca2b71b78e7c2e83ac4b93d7f28361

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41d48399e8513bba3c62fe067228c8f4b88315221ab9d19e29b0e34637dae604",
    "cross_cats_sorted": [
      "cs.DC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-01-24T21:36:00Z",
    "title_canon_sha256": "3708ebf5ff3b3c157364e985b078bd7bb9b242fbf4a046bf9ab3558d15b03f68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.5135",
    "kind": "arxiv",
    "version": 3
  }
}