Pith Number

pith:7KC7A6B7

pith:2021:7KC7A6B7MUAPZS2QQKYJ7RDGS6

not attested not anchored not stored refs pending

Overhang penalization in additive manufacturing via phase field structural topology optimization with anisotropic energies

Andrea Signori, Harald Garcke, Kei Fong Lam, Robert N\"urnberg

arxiv:2111.14070 v1 · 2021-11-28 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7KC7A6B7MUAPZS2QQKYJ7RDGS6}

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	2026-07-05T05:50:04.347819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa85f0783f6500fccb5082b09fc46697aad017d50c3f1d33844bc5ec3c4ec003

Aliases

arxiv: 2111.14070 · arxiv_version: 2111.14070v1 · doi: 10.48550/arxiv.2111.14070 · pith_short_12: 7KC7A6B7MUAP · pith_short_16: 7KC7A6B7MUAPZS2Q · pith_short_8: 7KC7A6B7

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/7KC7A6B7MUAPZS2QQKYJ7RDGS6 \
  | 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: fa85f0783f6500fccb5082b09fc46697aad017d50c3f1d33844bc5ec3c4ec003

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae4e2d89c426604c87ad7ad0553928ecaf13e23c71349a1d7ccad44a1fb55fc8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2021-11-28T07:34:08Z",
    "title_canon_sha256": "49e4f3d9fe697356d72d468fae93a111bbcd21b6c3cc6219addfa01291acb2d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.14070",
    "kind": "arxiv",
    "version": 1
  }
}