Pith Number

pith:XEHTX77R

pith:2011:XEHTX77R3DZ4N3G7FLPY6GRVOX

not attested not anchored not stored refs pending

Symbolic computation of weighted Moore-Penrose inverse using partitioning method

M.B., M.D, Petkovi\'c, P.S., Stanimirovi\'c, Tasi\'c

arxiv:1104.1696 v1 · 2011-04-09 · cs.SC · cs.DS · cs.MS · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XEHTX77R3DZ4N3G7FLPY6GRVOX}

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	2026-05-18T04:24:43.348415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b90f3bfff1d8f3c6ecdf2adf8f1a3575cb83783ba97bd9277e2ac4062365ac7b

Aliases

arxiv: 1104.1696 · arxiv_version: 1104.1696v1 · doi: 10.48550/arxiv.1104.1696 · pith_short_12: XEHTX77R3DZ4 · pith_short_16: XEHTX77R3DZ4N3G7 · pith_short_8: XEHTX77R

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/XEHTX77R3DZ4N3G7FLPY6GRVOX \
  | 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: b90f3bfff1d8f3c6ecdf2adf8f1a3575cb83783ba97bd9277e2ac4062365ac7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fb3130d0030cbf0dba321656e24ab579f16813bfe5d53bf1f88cf8440af46da",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.MS",
      "math.FA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2011-04-09T11:54:31Z",
    "title_canon_sha256": "9cd04d3a4b207065c42330ad0ffd10ba59ac40f0894bb6583e2f555d2965b974"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.1696",
    "kind": "arxiv",
    "version": 1
  }
}