Pith Number

pith:QOOEARIZ

pith:2024:QOOEARIZ4X2ZSYQB4W33J5MUGI

not attested not anchored not stored refs pending

A tensor-train reduced basis solver for parameterized partial differential equations on Cartesian grids

Nicholas Mueller, Santiago Badia, Tiangang Cui, Yiran Zhao

arxiv:2412.14460 v2 · 2024-12-19 · 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{QOOEARIZ4X2ZSYQB4W33J5MUGI}

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	2026-07-05T10:58:21.611544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

839c404519e5f5996201e5b7b4f594323763f2d46368f22ad5bb0cd2572a8f59

Aliases

arxiv: 2412.14460 · arxiv_version: 2412.14460v2 · doi: 10.48550/arxiv.2412.14460 · pith_short_12: QOOEARIZ4X2Z · pith_short_16: QOOEARIZ4X2ZSYQB · pith_short_8: QOOEARIZ

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/QOOEARIZ4X2ZSYQB4W33J5MUGI \
  | 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: 839c404519e5f5996201e5b7b4f594323763f2d46368f22ad5bb0cd2572a8f59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "539e18def6b255feaa5e200d1c6c4d2174c1e5d60b56f9f3fcba7b0e91f1b294",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-12-19T02:20:51Z",
    "title_canon_sha256": "4c62bcb08d78b1f0bb0d806fbc873e7436a303d0e9eba6f43ff3fe98f1bf92f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2412.14460",
    "kind": "arxiv",
    "version": 2
  }
}