Pith Number

pith:GUDBH53M

pith:2025:GUDBH53M5G5I42PETFEUQ4Y7H3

not attested not anchored not stored refs pending

The Role of Rank in Mismatched Low-Rank Symmetric Matrix Estimation

Chaowen Deng, Jie Fan, Panpan Niu, Teng Fu, Yuhao Liu, Zhongyi Huang

arxiv:2507.12019 v1 · 2025-07-16 · cs.IT · eess.SP · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GUDBH53M5G5I42PETFEUQ4Y7H3}

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	2026-07-05T11:38:13.057505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

350613f76ce9ba8e69e4994948731f3ed6ac576083a909231a90a04e8d8db983

Aliases

arxiv: 2507.12019 · arxiv_version: 2507.12019v1 · doi: 10.48550/arxiv.2507.12019 · pith_short_12: GUDBH53M5G5I · pith_short_16: GUDBH53M5G5I42PE · pith_short_8: GUDBH53M

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/GUDBH53M5G5I42PETFEUQ4Y7H3 \
  | 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: 350613f76ce9ba8e69e4994948731f3ed6ac576083a909231a90a04e8d8db983

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a04dcda42642fdb1c7da6728a0a2e5cef282a477e06983700040f7f46ba98188",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2025-07-16T08:24:44Z",
    "title_canon_sha256": "69a2e2d261944b54f714e8e015bbe54e684df838b313ad9dab3fbc3a6770a526"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.12019",
    "kind": "arxiv",
    "version": 1
  }
}