Pith Number

pith:6Q4IWPWP

pith:2022:6Q4IWPWPFXLYMAIZQFTLOICPZD

not attested not anchored not stored refs pending

Hybrid Finite Difference with the Physics-informed Neural Network for solving PDE in complex geometries

Weien Zhou, Wei Peng, Wen Yao, Zixue Xiang

arxiv:2202.07926 v1 · 2022-02-16 · 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{6Q4IWPWPFXLYMAIZQFTLOICPZD}

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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

Auxiliary Finite-Difference Residual-Gradient Regularization for PINNs

Receipt and verification

First computed	2026-07-05T03:57:35.296272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4388b3ecf2dd78601198166b7204fc8eda2b4f6c4c3b64971280033d00c3681

Aliases

arxiv: 2202.07926 · arxiv_version: 2202.07926v1 · doi: 10.48550/arxiv.2202.07926 · pith_short_12: 6Q4IWPWPFXLY · pith_short_16: 6Q4IWPWPFXLYMAIZ · pith_short_8: 6Q4IWPWP

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/6Q4IWPWPFXLYMAIZQFTLOICPZD \
  | 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: f4388b3ecf2dd78601198166b7204fc8eda2b4f6c4c3b64971280033d00c3681

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f344a36820abee52dd798a6f87c589abff618f67702c851dfa5c307fa3a7cf2d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2022-02-16T08:34:14Z",
    "title_canon_sha256": "4b5ea5c53e660875613d8f7080fda40fe237f22a0311ae54569c70bc232bebd0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.07926",
    "kind": "arxiv",
    "version": 1
  }
}