Pith Number

pith:7C2Q2G3K

pith:2026:7C2Q2G3KR5TNZMORP234ENF34H

not attested not anchored not stored refs pending

Galerkin Approximation of the Fractional Hardy Constant

Andreea Dima, Liviu I. Ignat

arxiv:2607.26830 v1 · 2026-07-29 · math.NA · cs.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{7C2Q2G3KR5TNZMORP234ENF34H}

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	2026-07-30T01:22:28.005712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

f8b50d1b6a8f66dcb1d17eb7c234bbe1ec6c400cdf23a222cccff2b26cab4865

Aliases

arxiv: 2607.26830 · arxiv_version: 2607.26830v1 · doi: 10.48550/arxiv.2607.26830 · pith_short_12: 7C2Q2G3KR5TN · pith_short_16: 7C2Q2G3KR5TNZMOR · pith_short_8: 7C2Q2G3K

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/7C2Q2G3KR5TNZMORP234ENF34H \
  | 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: f8b50d1b6a8f66dcb1d17eb7c234bbe1ec6c400cdf23a222cccff2b26cab4865

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "076b8d62a083ec3e915963892d4297fd7739d2f4d65bb8b59679a19958f4507d",
    "cross_cats_sorted": [
      "cs.NA",
      "math.AP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-07-29T12:21:52Z",
    "title_canon_sha256": "3222a19922262c4de848a379fc7f1a4aba8e7d1361b48ed0b642c42af8a5709a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.26830",
    "kind": "arxiv",
    "version": 1
  }
}