Pith Number

pith:IHGYQI5X

pith:2023:IHGYQI5XWPEBREJAEOKACFRV2C

not attested not anchored not stored refs pending

Augmented physics informed extreme learning machine to solve the biharmonic equations via Fourier expansions

Jinran Wu, Liang Liu, Xi'an Li, Xin Tai, You-Gan Wang, Yujia Huang, Zhe Ding

arxiv:2310.13947 v4 · 2023-10-21 · math.NA · cs.NA · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IHGYQI5XWPEBREJAEOKACFRV2C}

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	2026-07-05T09:30:57.163906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41cd8823b7b3c81891202394011635d0b3e5936b9ebc5c34e7a52e96ca55cafc

Aliases

arxiv: 2310.13947 · arxiv_version: 2310.13947v4 · doi: 10.48550/arxiv.2310.13947 · pith_short_12: IHGYQI5XWPEB · pith_short_16: IHGYQI5XWPEBREJA · pith_short_8: IHGYQI5X

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/IHGYQI5XWPEBREJAEOKACFRV2C \
  | 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: 41cd8823b7b3c81891202394011635d0b3e5936b9ebc5c34e7a52e96ca55cafc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a768627a3819d7aa1a84a7850f7723a3d70903e2dbb427c6dfb45ed63fbd09b9",
    "cross_cats_sorted": [
      "cs.NA",
      "math-ph",
      "math.MP"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2023-10-21T09:04:24Z",
    "title_canon_sha256": "f0bb8d9ddeb123e93803f665c0f2ecd94c4a6ad8f17022c3bd98de4b4e050ba2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2310.13947",
    "kind": "arxiv",
    "version": 4
  }
}