Pith Number

pith:FV66VGOB

pith:2019:FV66VGOBN64UGEMUHJEWACYKPN

not attested not anchored not stored refs pending

Solving Differential Equation with Constrained Multilayer Feedforward Network

Qing-Dong Cai, Yantao Yang, Zeyu Liu

arxiv:1904.06619 v1 · 2019-04-14 · math.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{FV66VGOBN64UGEMUHJEWACYKPN}

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	2026-05-17T23:48:36.715873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d7dea99c16fb94311943a49600b0a7b62faa58b4eabd654420971257e1aeafb

Aliases

arxiv: 1904.06619 · arxiv_version: 1904.06619v1 · doi: 10.48550/arxiv.1904.06619 · pith_short_12: FV66VGOBN64U · pith_short_16: FV66VGOBN64UGEMU · pith_short_8: FV66VGOB

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/FV66VGOBN64UGEMUHJEWACYKPN \
  | 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: 2d7dea99c16fb94311943a49600b0a7b62faa58b4eabd654420971257e1aeafb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b3d9c6af81abe742bf5c1455f293fedbf63b01dd7e3d3b4df298b3dee536acd",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-04-14T03:27:34Z",
    "title_canon_sha256": "1b446b78f4c098b1ea9bae110864b001a3c993838a514d7066f385a058358992"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.06619",
    "kind": "arxiv",
    "version": 1
  }
}