Pith Number

pith:QVG26RMN

pith:2015:QVG26RMN6JN4KK45TZG6OZTYH2

not attested not anchored not stored refs pending

Block representations of generalized inverses of matrices

Branko Malesevic, Vera Miler Jerkovic

arxiv:1509.03458 v1 · 2015-09-11 · math.RA · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QVG26RMN6JN4KK45TZG6OZTYH2}

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	2026-07-05T00:11:28.677784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

854daf458df25bc52b9d9e4de766783e85687159a9e43118a8d525611dbcc86a

Aliases

arxiv: 1509.03458 · arxiv_version: 1509.03458v1 · doi: 10.48550/arxiv.1509.03458 · pith_short_12: QVG26RMN6JN4 · pith_short_16: QVG26RMN6JN4KK45 · pith_short_8: QVG26RMN

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/QVG26RMN6JN4KK45TZG6OZTYH2 \
  | 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: 854daf458df25bc52b9d9e4de766783e85687159a9e43118a8d525611dbcc86a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6da6e03c12278c025433ab7931dcad5c27ba80b2c0db5ed74a202f9692f5ca6",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2015-09-11T11:09:31Z",
    "title_canon_sha256": "9543e0f622bc966fbafddfbbddcfe026479763150f04114105551b2992cd9ee3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.03458",
    "kind": "arxiv",
    "version": 1
  }
}