Pith Number

pith:2QXAJS26

pith:2020:2QXAJS26EI6VSQ2ZLVTJ2EOXBP

not attested not anchored not stored refs pending

Probabilistic error estimation for non-intrusive reduced models learned from data of systems governed by linear parabolic partial differential equations

Benjamin Peherstorfer, Wayne Isaac Tan Uy

arxiv:2005.05890 v1 · 2020-05-12 · math.NA · cs.LG · 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{2QXAJS26EI6VSQ2ZLVTJ2EOXBP}

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	2026-07-05T01:02:24.674268Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d42e04cb5e223d5943595d669d11d70bec47c2b6fed4e5017fb63ea9bc5a5d81

Aliases

arxiv: 2005.05890 · arxiv_version: 2005.05890v1 · doi: 10.48550/arxiv.2005.05890 · pith_short_12: 2QXAJS26EI6V · pith_short_16: 2QXAJS26EI6VSQ2Z · pith_short_8: 2QXAJS26

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/2QXAJS26EI6VSQ2ZLVTJ2EOXBP \
  | 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: d42e04cb5e223d5943595d669d11d70bec47c2b6fed4e5017fb63ea9bc5a5d81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14a3d2dde3d2bbac85838996cb9d279ced50a36aa3eddb8fdf7d2ef2830197f8",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-05-12T16:08:05Z",
    "title_canon_sha256": "0d41f8fc122b38298ba16827b04eacbeb7d72e9e3a31b7ea9f50301e19233d13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.05890",
    "kind": "arxiv",
    "version": 1
  }
}