Pith Number

pith:5ZWD2NTM

pith:2019:5ZWD2NTMV7GAWAS57SACFNCHBL

not attested not anchored not stored refs pending

A distributed active subspace method for scalable surrogate modeling of function valued outputs

Alen Alexanderian, Hayley Guy, Meilin Yu

arxiv:1908.02694 v2 · 2019-08-07 · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5ZWD2NTMV7GAWAS57SACFNCHBL}

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	2026-07-04T23:52:22.871563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee6c3d366cafcc0b025dfc8022b4470ac12769705093e4cb1490f8509d2a5075

Aliases

arxiv: 1908.02694 · arxiv_version: 1908.02694v2 · doi: 10.48550/arxiv.1908.02694 · pith_short_12: 5ZWD2NTMV7GA · pith_short_16: 5ZWD2NTMV7GAWAS5 · pith_short_8: 5ZWD2NTM

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/5ZWD2NTMV7GAWAS57SACFNCHBL \
  | 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: ee6c3d366cafcc0b025dfc8022b4470ac12769705093e4cb1490f8509d2a5075

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bef48fd1835fd894e2cd16423650d66e03f4a5491d5018b6f93b6241aecb0223",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2019-08-07T15:58:10Z",
    "title_canon_sha256": "5547774579017a7ac029a619453d66d7fb5bef8eeacd980b64e8dac158fbd571"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02694",
    "kind": "arxiv",
    "version": 2
  }
}