Pith Number

pith:423MBXNF

pith:2011:423MBXNFXFVZUBRUWDT2ELH3CL

not attested not anchored not stored refs pending

Online Robust Subspace Tracking from Partial Information

John C.S. Lui, Jun He, Laura Balzano

arxiv:1109.3827 v2 · 2011-09-18 · cs.IT · cs.CV · cs.SY · math.IT · math.OC · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{423MBXNFXFVZUBRUWDT2ELH3CL}

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	2026-05-18T04:12:44.107170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6b6c0dda5b96b9a0634b0e7a22cfb12c1332a07d58fa3121d707d18424e2b96

Aliases

arxiv: 1109.3827 · arxiv_version: 1109.3827v2 · doi: 10.48550/arxiv.1109.3827 · pith_short_12: 423MBXNFXFVZ · pith_short_16: 423MBXNFXFVZUBRU · pith_short_8: 423MBXNF

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/423MBXNFXFVZUBRUWDT2ELH3CL \
  | 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: e6b6c0dda5b96b9a0634b0e7a22cfb12c1332a07d58fa3121d707d18424e2b96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61afa767fdb853feba4dea9a605368d5918ab8d9e75f9d420d8b31494eb6531a",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.SY",
      "math.IT",
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-09-18T00:53:53Z",
    "title_canon_sha256": "4adfcaf1b1909ccbc5d87317ef9e1645107aa3d4fa3372dac3721da8de6082ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.3827",
    "kind": "arxiv",
    "version": 2
  }
}