Pith Number

pith:G6CYQWD2

pith:2026:G6CYQWD2N6YLRI7UM5QJJUJRYR

not attested not anchored not stored refs pending

Surrogate modeling for convection-dominated parametric problems based on error learning

Ali Hassan, Lihong Feng, Shuwen Sun

arxiv:2605.29769 v1 · 2026-05-28 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G6CYQWD2N6YLRI7UM5QJJUJRYR}

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	2026-05-29T02:05:25.657946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

378588587a6fb0b8a3f4676094d131c450c4f39255cd579d2a0222b9b1ba1d10

Aliases

arxiv: 2605.29769 · arxiv_version: 2605.29769v1 · doi: 10.48550/arxiv.2605.29769 · pith_short_12: G6CYQWD2N6YL · pith_short_16: G6CYQWD2N6YLRI7U · pith_short_8: G6CYQWD2

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/G6CYQWD2N6YLRI7UM5QJJUJRYR \
  | 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: 378588587a6fb0b8a3f4676094d131c450c4f39255cd579d2a0222b9b1ba1d10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4bc6f4516f479e104733f65ce8a879dc28f5a720b74583c7480c8b1a004bffd3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2026-05-28T11:14:06Z",
    "title_canon_sha256": "6c34eb5e0a2e746062beddf513c8d058c45ce8a931d0e91b1a97e887ef4a77d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.29769",
    "kind": "arxiv",
    "version": 1
  }
}