Pith Number

pith:IGC34MUK

pith:2019:IGC34MUKFKG7VICQEUH4PGR3PC

not attested not anchored not stored refs pending

On special matrices related to Cauchy and Toeplitz matrices

Sajad Salami

arxiv:1907.08616 v1 · 2019-07-19 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IGC34MUKFKG7VICQEUH4PGR3PC}

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	2026-05-17T23:40:08.404307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4185be328a2a8dfaa050250fc79a3b78af72ef6168a84660d1c203572cf8b2e7

Aliases

arxiv: 1907.08616 · arxiv_version: 1907.08616v1 · doi: 10.48550/arxiv.1907.08616 · pith_short_12: IGC34MUKFKG7 · pith_short_16: IGC34MUKFKG7VICQ · pith_short_8: IGC34MUK

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/IGC34MUKFKG7VICQEUH4PGR3PC \
  | 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: 4185be328a2a8dfaa050250fc79a3b78af72ef6168a84660d1c203572cf8b2e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19d109dc8185b8cb2315d083f9a38cde70cc35ccede6c6ff9e0ecab5aa5d0472",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-07-19T01:03:50Z",
    "title_canon_sha256": "82fd63e80f919cc5b3dcccd6aaa88d7342ecdd5626f5cda5655dadd5e13faeb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.08616",
    "kind": "arxiv",
    "version": 1
  }
}