Pith Number

pith:HC55VUNV

pith:2019:HC55VUNV4LIYTNABT4E7GJ5MGP

not attested not anchored not stored refs pending

The Neural Network Approach to Inverse Problems in Differential Equations

Eric Darve, Kailai Xu

arxiv:1901.07758 v1 · 2019-01-23 · 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{HC55VUNV4LIYTNABT4E7GJ5MGP}

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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

FrequencyFormer: A Co-Designed Sensor-to-Processor Pipeline for Frequency-Domain Vision Transformer Inference

Receipt and verification

First computed	2026-07-05T09:51:23.111854Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38bbdad1b5e2d189b4019f09f327ac33e0cee31c84f3e6f22f3df879fe067abe

Aliases

arxiv: 1901.07758 · arxiv_version: 1901.07758v1 · doi: 10.48550/arxiv.1901.07758 · pith_short_12: HC55VUNV4LIY · pith_short_16: HC55VUNV4LIYTNAB · pith_short_8: HC55VUNV

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/HC55VUNV4LIYTNABT4E7GJ5MGP \
  | 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: 38bbdad1b5e2d189b4019f09f327ac33e0cee31c84f3e6f22f3df879fe067abe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e7dd6aed38a756383f0fda2ba9ab4ab47166b3626b2f1b7430aa63e754126c7",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-01-23T07:50:23Z",
    "title_canon_sha256": "7741d355dab1c6573bb0240d85d493fa27940f91cb3d66c410a09657989ad9b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.07758",
    "kind": "arxiv",
    "version": 1
  }
}