Pith Number

pith:ZIU3GIOQ

pith:2015:ZIU3GIOQTQSRDSJH4KYRI7RJBK

not attested not anchored not stored refs pending

Gauss quadrature for matrix inverse forms with applications

Chengtao Li, Stefanie Jegelka, Suvrit Sra

arxiv:1512.01904 v2 · 2015-12-07 · stat.ML · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZIU3GIOQTQSRDSJH4KYRI7RJBK}

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	2026-05-18T01:13:23.854122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ca29b321d09c2511c927e2b1147e290a877d1446d8f7727c88e8fa9b3bb676cc

Aliases

arxiv: 1512.01904 · arxiv_version: 1512.01904v2 · doi: 10.48550/arxiv.1512.01904 · pith_short_12: ZIU3GIOQTQSR · pith_short_16: ZIU3GIOQTQSRDSJH · pith_short_8: ZIU3GIOQ

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/ZIU3GIOQTQSRDSJH4KYRI7RJBK \
  | 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: ca29b321d09c2511c927e2b1147e290a877d1446d8f7727c88e8fa9b3bb676cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "037b87a4fbc80140de2d09b0ff31f98f9a37420196274a75de7c62c88a8b6747",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-12-07T04:13:45Z",
    "title_canon_sha256": "dea1497bf9506e0cccb578635743803cf08729988b0edda2094d2718f7c8fa5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.01904",
    "kind": "arxiv",
    "version": 2
  }
}