Pith Number

pith:NK5XVW5C

pith:2019:NK5XVW5CLUWQUVCWHKTFN7ZYE5

not attested not anchored not stored refs pending

Successive Projection Algorithm Robust to Outliers

Nicolas Gillis

arxiv:1908.04109 v1 · 2019-08-12 · eess.SP · cs.LG · cs.NA · eess.IV · math.NA · 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{NK5XVW5CLUWQUVCWHKTFN7ZYE5}

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	2026-07-04T23:53:20.796430Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6abb7adba25d2d0a54563aa656ff38276fc6e6554227309cd1e50f0e27275013

Aliases

arxiv: 1908.04109 · arxiv_version: 1908.04109v1 · doi: 10.48550/arxiv.1908.04109 · pith_short_12: NK5XVW5CLUWQ · pith_short_16: NK5XVW5CLUWQUVCW · pith_short_8: NK5XVW5C

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/NK5XVW5CLUWQUVCWHKTFN7ZYE5 \
  | 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: 6abb7adba25d2d0a54563aa656ff38276fc6e6554227309cd1e50f0e27275013

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "103b42e779a011913f9e7da2c5483f285cbd7e8c4d79d57b11bb829195e74536",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA",
      "eess.IV",
      "math.NA",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-08-12T12:21:50Z",
    "title_canon_sha256": "7086308e1b0d8cdef536a03c8cc799ae0ea3109783aa29b18173ef0920a1deb0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04109",
    "kind": "arxiv",
    "version": 1
  }
}