Pith Number

pith:PRSH56MW

pith:2017:PRSH56MWM73D5EMQKEQL2NYERE

not attested not anchored not stored refs pending

Reconstruction of a piecewise constant conductivity on a polygonal partition via shape optimization in EIT

Elena Beretta, Matteo Santacesaria, Simona Perotto, Stefano Micheletti

arxiv:1707.08413 v1 · 2017-07-26 · math.AP · math.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{PRSH56MWM73D5EMQKEQL2NYERE}

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	2026-05-18T00:20:44.574121Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c647ef99667f63e91905120bd3704892665c61de5517521388692f6be35583d

Aliases

arxiv: 1707.08413 · arxiv_version: 1707.08413v1 · doi: 10.48550/arxiv.1707.08413 · pith_short_12: PRSH56MWM73D · pith_short_16: PRSH56MWM73D5EMQ · pith_short_8: PRSH56MW

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/PRSH56MWM73D5EMQKEQL2NYERE \
  | 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: 7c647ef99667f63e91905120bd3704892665c61de5517521388692f6be35583d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eebda9c773025a6b4d328a7b3f79799ed09236564b60377744557bfbe4b2f2e0",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-07-26T12:54:44Z",
    "title_canon_sha256": "df104abae16240c2f672bfa6fb33572d9e71166090a52d4c330e76b0ae532666"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.08413",
    "kind": "arxiv",
    "version": 1
  }
}