Pith Number

pith:F6CZQIDP

pith:2017:F6CZQIDPRPUYDMT6HLL2IQRN5F

not attested not anchored not stored refs pending

Simultaneous kernels of matrix Hadamard powers

Alexander Belton, Apoorva Khare, Dominique Guillot, Mihai Putinar

arxiv:1709.03280 v3 · 2017-09-11 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F6CZQIDPRPUYDMT6HLL2IQRN5F}

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	2026-05-17T23:46:04.506673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f8598206f8be981b27e3ad7a4422de94ce4ee185b5b24bcbf5eb07ffcd6d4ea

Aliases

arxiv: 1709.03280 · arxiv_version: 1709.03280v3 · doi: 10.48550/arxiv.1709.03280 · pith_short_12: F6CZQIDPRPUY · pith_short_16: F6CZQIDPRPUYDMT6 · pith_short_8: F6CZQIDP

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/F6CZQIDPRPUYDMT6HLL2IQRN5F \
  | 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: 2f8598206f8be981b27e3ad7a4422de94ce4ee185b5b24bcbf5eb07ffcd6d4ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6dcc403d2939f394dc898cf2799fcd1615d9e3f85da9467aad696df1ec590aaa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2017-09-11T07:48:07Z",
    "title_canon_sha256": "792f37bc74abd03a894dcd4f124cb01d3315db9141d8c6f2b9a78eb7781f5c57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.03280",
    "kind": "arxiv",
    "version": 3
  }
}