Pith Number

pith:V2TNQDSD

pith:2014:V2TNQDSDLUSRDO3K7HZAM67BYU

not attested not anchored not stored refs pending

Computational Limits for Matrix Completion

Benjamin Weitz, Moritz Hardt, Prasad Raghavendra, Raghu Meka

arxiv:1402.2331 v2 · 2014-02-10 · cs.CC · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V2TNQDSDLUSRDO3K7HZAM67BYU}

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	2026-05-18T02:54:30.298122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aea6d80e435d2511bb6af9f2067be1c50f5b77a35c1188c2d9c44578b8e2ff6e

Aliases

arxiv: 1402.2331 · arxiv_version: 1402.2331v2 · doi: 10.48550/arxiv.1402.2331 · pith_short_12: V2TNQDSDLUSR · pith_short_16: V2TNQDSDLUSRDO3K · pith_short_8: V2TNQDSD

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/V2TNQDSDLUSRDO3K7HZAM67BYU \
  | 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: aea6d80e435d2511bb6af9f2067be1c50f5b77a35c1188c2d9c44578b8e2ff6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f57321e8d127e3d9e712a909cead3dac363f3c8b988219ca7b10d4e702def81",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-02-10T23:43:11Z",
    "title_canon_sha256": "5f17d81c76c1be63d76676519dc4316225193947c1d4eebebcd246744536697d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2331",
    "kind": "arxiv",
    "version": 2
  }
}