Pith Number

pith:Y2J3DVRB

pith:2019:Y2J3DVRBRV3B7VUCWWEKHTZ25X

not attested not anchored not stored refs pending

PDE/PDF-informed adaptive sampling for efficient non-intrusive surrogate modelling

Barry Koren, Benjamin Sanderse, Yous van Halder

arxiv:1907.04022 v1 · 2019-07-09 · 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{Y2J3DVRBRV3B7VUCWWEKHTZ25X}

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	2026-05-17T23:41:05.952548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c693b1d6218d761fd682b588a3cf3aedd2d6fcab0e07df949342e6255d74a3a9

Aliases

arxiv: 1907.04022 · arxiv_version: 1907.04022v1 · doi: 10.48550/arxiv.1907.04022 · pith_short_12: Y2J3DVRBRV3B · pith_short_16: Y2J3DVRBRV3B7VUC · pith_short_8: Y2J3DVRB

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/Y2J3DVRBRV3B7VUCWWEKHTZ25X \
  | 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: c693b1d6218d761fd682b588a3cf3aedd2d6fcab0e07df949342e6255d74a3a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a156c339c72ab1c1e362c56197356ce98e11c1d2b20400a32fdefb9d869526c1",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-07-09T07:30:26Z",
    "title_canon_sha256": "40086a32bbecfbcb24f18eef9e2df73cf6bb3246e94f5d9dc3467b5a6cdedef8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04022",
    "kind": "arxiv",
    "version": 1
  }
}