Pith Number

pith:LYBF63CQ

pith:2011:LYBF63CQJB4GDUXLPTDIE7342E

not attested not anchored not stored refs pending

Near-Optimal Column-Based Matrix Reconstruction

Christos Boutsidis, Malik Magdon-Ismail, Petros Drineas

arxiv:1103.0995 v3 · 2011-03-04 · 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{LYBF63CQJB4GDUXLPTDIE7342E}

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	2026-05-18T02:22:30.888879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e025f6c50487861d2eb7cc6827f7cd120c5463aee506e8382b5d0f682956bf3

Aliases

arxiv: 1103.0995 · arxiv_version: 1103.0995v3 · doi: 10.48550/arxiv.1103.0995 · pith_short_12: LYBF63CQJB4G · pith_short_16: LYBF63CQJB4GDUXL · pith_short_8: LYBF63CQ

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/LYBF63CQJB4GDUXLPTDIE7342E \
  | 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: 5e025f6c50487861d2eb7cc6827f7cd120c5463aee506e8382b5d0f682956bf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59a733e740ac08bcfabb0b27279a7500b91a849c0386f22a01fbc83a827e8111",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-03-04T23:50:35Z",
    "title_canon_sha256": "ecf1016288fc430933424a390724992ba756b6cd7ccce6a94bb2b92e24e08109"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.0995",
    "kind": "arxiv",
    "version": 3
  }
}