Pith Number

pith:WREYNZMX

pith:2026:WREYNZMXQNA5YNOLDSMVEEPEEN

not attested not anchored not stored refs pending

Multilevel Isogeometric Projection Stabilization via Quasi-Interpolation for Advection-Diffusion-Reaction Equations

Ahmed Ratnani, Zakaria El Hasnaoui

arxiv:2605.20583 v1 · 2026-05-20 · 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{WREYNZMXQNA5YNOLDSMVEEPEEN}

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	2026-05-21T01:04:43.463252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b44986e5978341dc35cb1c995211e42362006cef5d538c4aa3cde1f292984c2b

Aliases

arxiv: 2605.20583 · arxiv_version: 2605.20583v1 · doi: 10.48550/arxiv.2605.20583 · pith_short_12: WREYNZMXQNA5 · pith_short_16: WREYNZMXQNA5YNOL · pith_short_8: WREYNZMX

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/WREYNZMXQNA5YNOLDSMVEEPEEN \
  | 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: b44986e5978341dc35cb1c995211e42362006cef5d538c4aa3cde1f292984c2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48cd4cb4388dbf13cc6fa0801a86951a807268bd0e27747590bbb4dbbc8794ed",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-05-20T00:40:39Z",
    "title_canon_sha256": "9910f2f3134baaa3d65f9e192a07a011b52e66147466512b01abfe4226f0918e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20583",
    "kind": "arxiv",
    "version": 1
  }
}