Pith Number

pith:6WIISJGO

pith:2012:6WIISJGOI5D64EIAFGYJNT2LDW

not attested not anchored not stored refs pending

Rank-one Solutions for Homogeneous Linear Matrix Equations over the Positive Semidefinite Cone

Masao Fukushima, Yunbin Zhao

arxiv:1211.2131 v1 · 2012-11-09 · math.OC · math.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{6WIISJGOI5D64EIAFGYJNT2LDW}

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	2026-05-18T03:41:11.645024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5908924ce4747ee110029b096cf4b1db84d632ef1fbf4449d7031a41d2bb8b7

Aliases

arxiv: 1211.2131 · arxiv_version: 1211.2131v1 · doi: 10.48550/arxiv.1211.2131 · pith_short_12: 6WIISJGOI5D6 · pith_short_16: 6WIISJGOI5D64EIA · pith_short_8: 6WIISJGO

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/6WIISJGOI5D64EIAFGYJNT2LDW \
  | 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: f5908924ce4747ee110029b096cf4b1db84d632ef1fbf4449d7031a41d2bb8b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e714de28970ac1c9a49f6dce41503b90503b617aefcff4345ddc47cf4ab99b04",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-11-09T13:41:16Z",
    "title_canon_sha256": "00cce56741a7660a78d5e043d41f80b049eb334ac96ac52998833eabec190cb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.2131",
    "kind": "arxiv",
    "version": 1
  }
}