Pith Number

pith:B6LCYKWR

pith:2021:B6LCYKWRGPCDVW5UW2D576FSPZ

not attested not anchored not stored refs pending

The Old and the New: Can Physics-Informed Deep-Learning Replace Traditional Linear Solvers?

Stefano Markidis

arxiv:2103.09655 v2 · 2021-03-12 · math.NA · cs.DC · cs.NA · 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{B6LCYKWRGPCDVW5UW2D576FSPZ}

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.

Cited by

1 paper in Pith

IP-Basis PINNs: Efficient Multi-Query Inverse Parameter Estimation

Receipt and verification

First computed	2026-07-05T02:55:12.847367Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f962c2ad133c43adbb4b687dff8b27e58b70915add57fbdf17c6ed72cd13cc2

Aliases

arxiv: 2103.09655 · arxiv_version: 2103.09655v2 · doi: 10.48550/arxiv.2103.09655 · pith_short_12: B6LCYKWRGPCD · pith_short_16: B6LCYKWRGPCDVW5U · pith_short_8: B6LCYKWR

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/B6LCYKWRGPCDVW5UW2D576FSPZ \
  | 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: 0f962c2ad133c43adbb4b687dff8b27e58b70915add57fbdf17c6ed72cd13cc2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30025992ff41d6f32cb027444e8c014320ed361df1570b081a751d1eb1f5808f",
    "cross_cats_sorted": [
      "cs.DC",
      "cs.NA",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-03-12T00:26:34Z",
    "title_canon_sha256": "b3a83d1b0d6f7949df48f4c658fd5e3607829e3ecf1e5019f7d7ffb3fc1b1d3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.09655",
    "kind": "arxiv",
    "version": 2
  }
}