Pith Number

pith:YROETUMX

pith:2016:YROETUMXFDDCVISVZYHCKUTXJ2

not attested not anchored not stored refs pending

Convergence of a Grassmannian Gradient Descent Algorithm for Subspace Estimation From Undersampled Data

Dejiao Zhang, Laura Balzano

arxiv:1610.00199 v3 · 2016-10-01 · math.NA · cs.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{YROETUMXFDDCVISVZYHCKUTXJ2}

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	2026-06-04T18:10:04.714442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c45c49d19728c62aa255ce0e2552774e9e7fd993cf7c77a984f2dd4641b321d8

Aliases

arxiv: 1610.00199 · arxiv_version: 1610.00199v3 · doi: 10.48550/arxiv.1610.00199 · pith_short_12: YROETUMXFDDC · pith_short_16: YROETUMXFDDCVISV · pith_short_8: YROETUMX

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/YROETUMXFDDCVISVZYHCKUTXJ2 \
  | 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: c45c49d19728c62aa255ce0e2552774e9e7fd993cf7c77a984f2dd4641b321d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc3e8ec1606f41f642fdc89f763a95709b3a83778594c656baf1c7f494ca86c3",
    "cross_cats_sorted": [
      "cs.NA",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-10-01T22:19:02Z",
    "title_canon_sha256": "c3714996bae23547042944bc809c7e61573b34a3516ebded305b1f5e6890aa67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.00199",
    "kind": "arxiv",
    "version": 3
  }
}