Pith Number

pith:E2RSCL7K

pith:2018:E2RSCL7K3BNFO3LJDXDKHDMCLL

not attested not anchored not stored refs pending

Diagonal realizability in the Nonnegative Inverse Eigenvalue Problem

Helena \v{S}migoc, Thomas J. Laffey

arxiv:1805.06707 v1 · 2018-05-17 · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E2RSCL7K3BNFO3LJDXDKHDMCLL}

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	2026-05-18T00:15:43.557617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26a3212fead85a576d691dc6a38d825accd0f5ef761c66a5fc8c5323d0e6f77f

Aliases

arxiv: 1805.06707 · arxiv_version: 1805.06707v1 · doi: 10.48550/arxiv.1805.06707 · pith_short_12: E2RSCL7K3BNF · pith_short_16: E2RSCL7K3BNFO3LJ · pith_short_8: E2RSCL7K

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/E2RSCL7K3BNFO3LJDXDKHDMCLL \
  | 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: 26a3212fead85a576d691dc6a38d825accd0f5ef761c66a5fc8c5323d0e6f77f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64437fd45f1958be11e6c52e7bc655f6d4eee4089194f2fd83f27f6c92df5a63",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2018-05-17T11:38:13Z",
    "title_canon_sha256": "9670bad80321dd42f3849733fad3debdc2f726a9518d584b10883dfe8e296ca6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.06707",
    "kind": "arxiv",
    "version": 1
  }
}