Pith Number

pith:2GHJ4Q64

pith:2017:2GHJ4Q64HSCHHN4BX6GTKNGTSL

not attested not anchored not stored refs pending

Provable Dynamic Robust PCA or Robust Subspace Tracking

Namrata Vaswani, Praneeth Narayanamurthy

arxiv:1705.08948 v4 · 2017-05-24 · cs.IT · math.IT · 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{2GHJ4Q64HSCHHN4BX6GTKNGTSL}

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	2026-05-17T23:52:56.089203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d18e9e43dc3c8473b781bf8d3534d392d22927c51571d83ab6db1f7bfb408e74

Aliases

arxiv: 1705.08948 · arxiv_version: 1705.08948v4 · doi: 10.48550/arxiv.1705.08948 · pith_short_12: 2GHJ4Q64HSCH · pith_short_16: 2GHJ4Q64HSCHHN4B · pith_short_8: 2GHJ4Q64

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/2GHJ4Q64HSCHHN4BX6GTKNGTSL \
  | 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: d18e9e43dc3c8473b781bf8d3534d392d22927c51571d83ab6db1f7bfb408e74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b75692ba4979ce48120ca13d1869d4ba2c52860a30a23ddcf693a882c38a251",
    "cross_cats_sorted": [
      "math.IT",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-05-24T19:55:51Z",
    "title_canon_sha256": "a94e2b1902585e9684641d281399348c37f479a73b1bbfac5a5e12737bdec035"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.08948",
    "kind": "arxiv",
    "version": 4
  }
}