Pith Number

pith:FSEP7FSJ

pith:2022:FSEP7FSJK3DMX7JRXKJZMU5SCT

not attested not anchored not stored refs pending

Learning Physics-Informed Neural Networks without Stacked Back-propagation

Di He, Jiang Bian, Jia Zhang, Liwei Wang, Shanda Li, Tie-Yan Liu, Wenlei Shi, Xiaotian Gao

arxiv:2202.09340 v2 · 2022-02-18 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FSEP7FSJK3DMX7JRXKJZMU5SCT}

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	2026-07-05T05:45:17.057150Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c88ff964956c6cbfd31ba939653b214e067ecc0a7bfa1f44354703ad3ee6fe3

Aliases

arxiv: 2202.09340 · arxiv_version: 2202.09340v2 · doi: 10.48550/arxiv.2202.09340 · pith_short_12: FSEP7FSJK3DM · pith_short_16: FSEP7FSJK3DMX7JR · pith_short_8: FSEP7FSJ

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/FSEP7FSJK3DMX7JRXKJZMU5SCT \
  | 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: 2c88ff964956c6cbfd31ba939653b214e067ecc0a7bfa1f44354703ad3ee6fe3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51af776a4a16ffad9baabb61757a88615b406f6c50877ad8a0bef94c33e9d31c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-02-18T18:07:54Z",
    "title_canon_sha256": "aab0e832fc5395ea2475a0fd509fac6ed4092e1f4078f051b2f9ee9c2730208f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.09340",
    "kind": "arxiv",
    "version": 2
  }
}