Pith Number

pith:2KGQRU7K

pith:2015:2KGQRU7KRRXDJCF5LBBAIWLUFL

not attested not anchored not stored refs pending

Fast and Robust Fixed-Rank Matrix Recovery

German Ros, Julio Guerrero

arxiv:1503.03004 v3 · 2015-03-10 · cs.CV · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2KGQRU7KRRXDJCF5LBBAIWLUFL}

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	2026-05-18T02:20:28.222202Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d28d08d3ea8c6e3488bd58420459742ac2c4bca16e6f044d603dcc635f0e1983

Aliases

arxiv: 1503.03004 · arxiv_version: 1503.03004v3 · doi: 10.48550/arxiv.1503.03004 · pith_short_12: 2KGQRU7KRRXD · pith_short_16: 2KGQRU7KRRXDJCF5 · pith_short_8: 2KGQRU7K

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/2KGQRU7KRRXDJCF5LBBAIWLUFL \
  | 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: d28d08d3ea8c6e3488bd58420459742ac2c4bca16e6f044d603dcc635f0e1983

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "250a248c06744a23706991bbdebdaa4b687302fdf518974d10e73205dc81dab4",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-03-10T17:35:46Z",
    "title_canon_sha256": "56ed78f8c5ea022c92972c1e7ed16cc42fb630f91f074c099e541d8201f0ae5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.03004",
    "kind": "arxiv",
    "version": 3
  }
}