Pith Number

pith:QNPQVHRE

pith:2014:QNPQVHREF6T34EK7GGNEMC26AX

not attested not anchored not stored refs pending

Robust Subspace Recovery via Bi-Sparsity Pursuit

Hamid Krim, Xiao Bian

arxiv:1403.8067 v2 · 2014-03-31 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QNPQVHREF6T34EK7GGNEMC26AX}

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	2026-05-18T02:53:52.961821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

835f0a9e242fa7be115f319a460b5e05d8d0f8260d8192fd396e14ffa8046c96

Aliases

arxiv: 1403.8067 · arxiv_version: 1403.8067v2 · doi: 10.48550/arxiv.1403.8067 · pith_short_12: QNPQVHREF6T3 · pith_short_16: QNPQVHREF6T34EK7 · pith_short_8: QNPQVHRE

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/QNPQVHREF6T34EK7GGNEMC26AX \
  | 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: 835f0a9e242fa7be115f319a460b5e05d8d0f8260d8192fd396e14ffa8046c96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef2efeeb8d4e1452d093aa275c64c816da2b5c413c1efbb2ff5e0aa79b792c42",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2014-03-31T16:09:27Z",
    "title_canon_sha256": "982fec9259e36111f3647383e977e58ed44ff66ffe4107a6f1a0f787e5e8d739"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.8067",
    "kind": "arxiv",
    "version": 2
  }
}