Pith Number

pith:7WZFM4IR

pith:2024:7WZFM4IRTZ2NGTRTTEPGCZTMHG

not attested not anchored not stored refs pending

The discrete inverse conductivity problem solved by the weights of an interpretable neural network

Alberto Gandolfi, Bangti Jin, Elena Beretta, Maolin Deng

arxiv:2501.00345 v1 · 2024-12-31 · math.NA · cs.NA · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7WZFM4IRTZ2NGTRTTEPGCZTMHG}

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	2026-07-05T09:55:43.374542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdb25671119e74d34e33991e61666c39a418ca8d3539cc9b45488741cb306816

Aliases

arxiv: 2501.00345 · arxiv_version: 2501.00345v1 · doi: 10.48550/arxiv.2501.00345 · pith_short_12: 7WZFM4IRTZ2N · pith_short_16: 7WZFM4IRTZ2NGTRT · pith_short_8: 7WZFM4IR

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/7WZFM4IRTZ2NGTRTTEPGCZTMHG \
  | 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: fdb25671119e74d34e33991e61666c39a418ca8d3539cc9b45488741cb306816

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b1c45775589510787d262f7605a3df524019598b261d526e88ec2543c74a92e",
    "cross_cats_sorted": [
      "cs.NA",
      "math.AP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-12-31T08:42:53Z",
    "title_canon_sha256": "513a200e4d2ea0683ce765b88ec60da8eb900edc0024dd4d0f9216e96c751e25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.00345",
    "kind": "arxiv",
    "version": 1
  }
}