Pith Number

pith:RZOVSP5R

pith:2026:RZOVSP5R57BXZGIOY32NUVDIVO

not attested not anchored not stored refs pending

An Aubin-Nitsche Lemma for a positivity-preserving finite element method

Gabriel R. Barrenechea, Theophile Chaumont-Frelet

arxiv:2606.21560 v1 · 2026-06-19 · 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{RZOVSP5R57BXZGIOY32NUVDIVO}

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	2026-06-23T01:13:14.643431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e5d593fb1efc37c990ec6f4da5468ab8b0d37c48f974bc4916d74d117f54360

Aliases

arxiv: 2606.21560 · arxiv_version: 2606.21560v1 · doi: 10.48550/arxiv.2606.21560 · pith_short_12: RZOVSP5R57BX · pith_short_16: RZOVSP5R57BXZGIO · pith_short_8: RZOVSP5R

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/RZOVSP5R57BXZGIOY32NUVDIVO \
  | 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: 8e5d593fb1efc37c990ec6f4da5468ab8b0d37c48f974bc4916d74d117f54360

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fc1258cd12f10d0cf9ef4e1b33e958de6f132c2e0017ed3c7bed90189395e0a",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-06-19T15:57:09Z",
    "title_canon_sha256": "32d1c0f675f50092e0c865a014ac6652252ecd3bc4555f1fa28143d35ec052c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.21560",
    "kind": "arxiv",
    "version": 1
  }
}