Pith Number

pith:4MP5RKCQ

pith:2013:4MP5RKCQWZYPRUMPCQAWARW44I

not attested not anchored not stored refs pending

Computing the first eigenpair for problems with variable exponents

Marcello Bellomi, Marco Caliari, Marco Squassina

arxiv:1304.8066 v1 · 2013-04-30 · math.NA · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4MP5RKCQWZYPRUMPCQAWARW44I}

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	2026-05-18T03:26:51.010987Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e31fd8a850b670f8d18f14016046dce222590768ffee08ea627adcfd48f17074

Aliases

arxiv: 1304.8066 · arxiv_version: 1304.8066v1 · doi: 10.48550/arxiv.1304.8066 · pith_short_12: 4MP5RKCQWZYP · pith_short_16: 4MP5RKCQWZYPRUMP · pith_short_8: 4MP5RKCQ

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/4MP5RKCQWZYPRUMPCQAWARW44I \
  | 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: e31fd8a850b670f8d18f14016046dce222590768ffee08ea627adcfd48f17074

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b685a30b34dd548b0e35ddcf7475b070aacd6105fbca6296a23696552084e877",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-04-30T16:55:31Z",
    "title_canon_sha256": "3ec0aee95b8cab615d21c824b42a7be7d7cdae2b052c7b60b40586f74d1d1fa9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.8066",
    "kind": "arxiv",
    "version": 1
  }
}