Pith Number

pith:UW7IVL7Y

pith:2026:UW7IVL7YS4EOUUQ5UAIOOLQEM6

not attested not anchored not stored refs pending

Guaranteed stability bounds for second-order PDE problems satisfying a Garding inequality

T. Chaumont-Frelet

arxiv:2601.00404 v2 · 2026-01-01 · 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{UW7IVL7YS4EOUUQ5UAIOOLQEM6}

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	2026-05-20T01:05:05.515167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5be8aaff89708ea521da010e72e0467bcb7ef57c3994826e3e20f803a2ccaff

Aliases

arxiv: 2601.00404 · arxiv_version: 2601.00404v2 · doi: 10.48550/arxiv.2601.00404 · pith_short_12: UW7IVL7YS4EO · pith_short_16: UW7IVL7YS4EOUUQ5 · pith_short_8: UW7IVL7Y

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/UW7IVL7YS4EOUUQ5UAIOOLQEM6 \
  | 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: a5be8aaff89708ea521da010e72e0467bcb7ef57c3994826e3e20f803a2ccaff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21d2e898359e640af1753adb96fcac4781ff26e5ab5bb8c1d402e3fe79f59c99",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-01-01T17:34:42Z",
    "title_canon_sha256": "353c089eba8198a4c0963a77d9c9caa4ef4c6633b8564314afced737a58769e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.00404",
    "kind": "arxiv",
    "version": 2
  }
}