Pith Number

pith:4KUDQVRV

pith:2026:4KUDQVRVZJT7L2CC5FRWLB2Y5C

not attested not anchored not stored refs pending

Eigenbounds of symmetric positive definite tensors

Hemant Sharma, Nachiketa Mishra, Snigdhashree Nayak

arxiv:2605.14768 v1 · 2026-05-14 · math.NA · cs.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{4KUDQVRVZJT7L2CC5FRWLB2Y5C}

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	2026-05-17T23:38:58.682649Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2a8385635ca67f5e842e963658758e8a3cb69372f7e0f963474e2cb3e3bad1a

Aliases

arxiv: 2605.14768 · arxiv_version: 2605.14768v1 · doi: 10.48550/arxiv.2605.14768 · pith_short_12: 4KUDQVRVZJT7 · pith_short_16: 4KUDQVRVZJT7L2CC · pith_short_8: 4KUDQVRV

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/4KUDQVRVZJT7L2CC5FRWLB2Y5C \
  | 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: e2a8385635ca67f5e842e963658758e8a3cb69372f7e0f963474e2cb3e3bad1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b04552eb127293213fda6d748cee75f397b9cc44f2e8053f5e06870d7fd9afc",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-05-14T12:35:14Z",
    "title_canon_sha256": "2fa5c155813e2404020554c6635665534dfde3d645d869b64aa006c09c6436c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.14768",
    "kind": "arxiv",
    "version": 1
  }
}