Pith Number

pith:VGSI3G7Y

pith:2023:VGSI3G7YFGKPWNUWSYDX4BMAYG

not attested not anchored not stored refs pending

Hybrid Neural-Network FEM Approximation of Diffusion Coefficient in Elliptic and Parabolic Problems

Bangti Jin, Qimeng Quan, Siyu Cen, Zhi Zhou

arxiv:2302.10773 v1 · 2023-02-21 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VGSI3G7YFGKPWNUWSYDX4BMAYG}

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	2026-07-05T05:44:21.577222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9a48d9bf82994fb369696077e0580c18667a6682a2a0e59d7b79d98d235ead9

Aliases

arxiv: 2302.10773 · arxiv_version: 2302.10773v1 · doi: 10.48550/arxiv.2302.10773 · pith_short_12: VGSI3G7YFGKP · pith_short_16: VGSI3G7YFGKPWNUW · pith_short_8: VGSI3G7Y

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/VGSI3G7YFGKPWNUWSYDX4BMAYG \
  | 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: a9a48d9bf82994fb369696077e0580c18667a6682a2a0e59d7b79d98d235ead9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a45dca448e2007c3a9de0b5663d13c956e72fbd043de1f77e210c15b5d4d54f4",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2023-02-21T16:08:40Z",
    "title_canon_sha256": "4c193325a91538bd4cb1acca6d36de04e24c7dcf971e4d76c00a4297c26c65b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.10773",
    "kind": "arxiv",
    "version": 1
  }
}