Pith Number

pith:UHIWCSS3

pith:2021:UHIWCSS3OMTRP4N63C7QGUEKBX

not attested not anchored not stored refs pending

MARS: A second-order reduction algorithm for high-dimensional sparse precision matrices estimation

Binyan Jiang, Defeng Sun, Qian Li

arxiv:2106.13508 v2 · 2021-06-25 · stat.CO · math.OC · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UHIWCSS3OMTRP4N63C7QGUEKBX}

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	2026-07-05T05:12:08.608135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1d1614a5b732717f1bed8bf03508a0dcade562b9ebed1f95b4800c06f19421d

Aliases

arxiv: 2106.13508 · arxiv_version: 2106.13508v2 · doi: 10.48550/arxiv.2106.13508 · pith_short_12: UHIWCSS3OMTR · pith_short_16: UHIWCSS3OMTRP4N6 · pith_short_8: UHIWCSS3

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/UHIWCSS3OMTRP4N63C7QGUEKBX \
  | 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: a1d1614a5b732717f1bed8bf03508a0dcade562b9ebed1f95b4800c06f19421d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32cffab4e0b3a862c8ce185c56e66682670cafc4cca4706a055002fa28353ad3",
    "cross_cats_sorted": [
      "math.OC",
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2021-06-25T09:00:10Z",
    "title_canon_sha256": "084b3ba18262552fa3464a202899332ce505b055db1a58fb76acce3a39655f57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.13508",
    "kind": "arxiv",
    "version": 2
  }
}