Pith Number

pith:A52ECVMP

pith:2015:A52ECVMPIQ7QJ7HZMXANDQHKLA

not attested not anchored not stored refs pending

Robust Structured Low-Rank Approximation on the Grassmannian

Clemens Hage, Martin Kleinsteuber

arxiv:1506.03958 v1 · 2015-06-12 · 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{A52ECVMPIQ7QJ7HZMXANDQHKLA}

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	2026-05-18T01:51:18.710302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

077441558f443f04fcf965c0d1c0ea5830216e1e3714c9738ce220dc3f436529

Aliases

arxiv: 1506.03958 · arxiv_version: 1506.03958v1 · doi: 10.48550/arxiv.1506.03958 · pith_short_12: A52ECVMPIQ7Q · pith_short_16: A52ECVMPIQ7QJ7HZ · pith_short_8: A52ECVMP

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/A52ECVMPIQ7QJ7HZMXANDQHKLA \
  | 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: 077441558f443f04fcf965c0d1c0ea5830216e1e3714c9738ce220dc3f436529

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6dad693828f0931fdd593a0df94a96a994a07e9aa8abd97c08a6895e60057817",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-06-12T09:48:04Z",
    "title_canon_sha256": "4e827b1e6a00a134536eed88b5eab0d8a4eb761d16e9c88807df8ad03f71c78e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.03958",
    "kind": "arxiv",
    "version": 1
  }
}