Pith Number

pith:UNUJMPCT

pith:2017:UNUJMPCTD4TMFIHKWGWI5BYOCD

not attested not anchored not stored refs pending

Robust regularization of topology optimization problems with a posteriori error estimators

D. Zorin, G. V. Ovchinnikov, I. V. Oseledets

arxiv:1705.07316 v1 · 2017-05-20 · 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{UNUJMPCTD4TMFIHKWGWI5BYOCD}

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	2026-05-18T00:44:05.931875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a368963c531f26c2a0eab1ac8e870e10cd8fbc9b8771bf26b731ea4f7b6f4e0b

Aliases

arxiv: 1705.07316 · arxiv_version: 1705.07316v1 · doi: 10.48550/arxiv.1705.07316 · pith_short_12: UNUJMPCTD4TM · pith_short_16: UNUJMPCTD4TMFIHK · pith_short_8: UNUJMPCT

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/UNUJMPCTD4TMFIHKWGWI5BYOCD \
  | 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: a368963c531f26c2a0eab1ac8e870e10cd8fbc9b8771bf26b731ea4f7b6f4e0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0a8261ed61584e97a3af75c079bc5f82a70ddfc827162918deeb088ed000d33",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-05-20T14:47:08Z",
    "title_canon_sha256": "c0f0d65661b12da5274bf2132a38beba206feeff97baa7bcc2d0af4399983973"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.07316",
    "kind": "arxiv",
    "version": 1
  }
}