Pith Number

pith:4OTRMZ26

pith:2018:4OTRMZ26GLEEP3RD2AJYJKA4DU

not attested not anchored not stored refs pending

Learning Parameters and Constitutive Relationships with Physics Informed Deep Neural Networks

Alexandre M. Tartakovsky, Carlos Ortiz Marrero, David Barajas-Solano, Guzel D. Tartakovsky, Paris Perdikaris

arxiv:1808.03398 v2 · 2018-08-10 · math.AP · 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{4OTRMZ26GLEEP3RD2AJYJKA4DU}

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	2026-05-18T00:07:48.863915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3a716675e32c847ee23d01384a81c1d09ea2d2b213766e8e18545c1b714c100

Aliases

arxiv: 1808.03398 · arxiv_version: 1808.03398v2 · doi: 10.48550/arxiv.1808.03398 · pith_short_12: 4OTRMZ26GLEE · pith_short_16: 4OTRMZ26GLEEP3RD · pith_short_8: 4OTRMZ26

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/4OTRMZ26GLEEP3RD2AJYJKA4DU \
  | 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: e3a716675e32c847ee23d01384a81c1d09ea2d2b213766e8e18545c1b714c100

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ae6d74a0ab8d6141fad0d63ccb4aa9ac1d0922efe70850a25eb513fcb52d5c5",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-08-10T02:54:55Z",
    "title_canon_sha256": "0ac67730051b25cf8900739f9db5e5251f42c6b8be5c45fa72f31f97b1c5d445"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.03398",
    "kind": "arxiv",
    "version": 2
  }
}