Pith Number

pith:WUUWFBSK

pith:2017:WUUWFBSK6Q5GDEW6LGSFYOSFGY

not attested not anchored not stored refs pending

Error modeling for surrogates of dynamical systems using machine learning

Kevin Carlberg, Louis J. Durlofsky, Sumeet Trehan

arxiv:1701.03240 v2 · 2017-01-12 · cs.NA · math.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{WUUWFBSK6Q5GDEW6LGSFYOSFGY}

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	2026-05-18T00:43:18.033478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b52962864af43a6192de59a45c3a453630d01b2a305086a670595cc0e8660fa7

Aliases

arxiv: 1701.03240 · arxiv_version: 1701.03240v2 · doi: 10.48550/arxiv.1701.03240 · pith_short_12: WUUWFBSK6Q5G · pith_short_16: WUUWFBSK6Q5GDEW6 · pith_short_8: WUUWFBSK

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/WUUWFBSK6Q5GDEW6LGSFYOSFGY \
  | 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: b52962864af43a6192de59a45c3a453630d01b2a305086a670595cc0e8660fa7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61b956391e5b218251c92a5d25db5405e7327640be04ee8218b4801179ba7d3d",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2017-01-12T05:42:22Z",
    "title_canon_sha256": "0707a27f296a7cea04d523de8212685c17e1a441131cb1033068bda851b03dff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.03240",
    "kind": "arxiv",
    "version": 2
  }
}