Pith Number

pith:X3DDUZMF

pith:2019:X3DDUZMF3OHQEVOFH73LQ6H6L6

not attested not anchored not stored refs pending

Sign Patterns of Inverse Doubly-Nonnegative Matrices

Mengran Xue, Sandip Roy

arxiv:1903.04141 v3 · 2019-03-11 · eess.SY · cs.NA · cs.SY · eess.SP · math.NA · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X3DDUZMF3OHQEVOFH73LQ6H6L6}

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	2026-06-04T20:14:11.869391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bec63a6585db8f0255c53ff6b878fe5fb6242e339ac59f2c2445f94c56a563b3

Aliases

arxiv: 1903.04141 · arxiv_version: 1903.04141v3 · doi: 10.48550/arxiv.1903.04141 · pith_short_12: X3DDUZMF3OHQ · pith_short_16: X3DDUZMF3OHQEVOF · pith_short_8: X3DDUZMF

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/X3DDUZMF3OHQEVOFH73LQ6H6L6 \
  | 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: bec63a6585db8f0255c53ff6b878fe5fb6242e339ac59f2c2445f94c56a563b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28c4a9620881f2d9896ffd71f95be7e8526683a70d86e3bf297067d260541b4b",
    "cross_cats_sorted": [
      "cs.NA",
      "cs.SY",
      "eess.SP",
      "math.NA",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2019-03-11T06:46:52Z",
    "title_canon_sha256": "faa4dca7292dfe31701f241e145f6f11d901dca18af419f0671f2e4640c7f1a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04141",
    "kind": "arxiv",
    "version": 3
  }
}