Pith Number

pith:A4I34QRZ

pith:2013:A4I34QRZLST64USTZX4U45GISB

not attested not anchored not stored refs pending

New results on the cp rank and related properties of co(mpletely)positive matrices

Abraham Berman, Florian Jarre, Immanuel M. Bomze, Naomi Shaked-Monderer, Werner Schachinger

arxiv:1305.0737 v2 · 2013-04-27 · 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{A4I34QRZLST64USTZX4U45GISB}

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	2026-05-18T00:51:58.576459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0711be42395ca7ee5253cdf94e74c8904197e6e7d3a581917fe5c03d17443cd1

Aliases

arxiv: 1305.0737 · arxiv_version: 1305.0737v2 · doi: 10.48550/arxiv.1305.0737 · pith_short_12: A4I34QRZLST6 · pith_short_16: A4I34QRZLST64UST · pith_short_8: A4I34QRZ

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/A4I34QRZLST64USTZX4U45GISB \
  | 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: 0711be42395ca7ee5253cdf94e74c8904197e6e7d3a581917fe5c03d17443cd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d97fbee6244d4c4c5e7606e63d9efae4e24322d0670d38fe7680735bc5e32475",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-04-27T19:23:46Z",
    "title_canon_sha256": "2abe19cccf46b93889f27f521beb3d17c897ed496f8b294ea01a305c8f42add3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0737",
    "kind": "arxiv",
    "version": 2
  }
}