Pith Number

pith:FFSDHC7C

pith:2018:FFSDHC7CXH7BSP5ZJJQXNMAPPO

not attested not anchored not stored refs pending

Topology optimization with worst-case handling of material uncertainties

Jannis Greifenstein, Michael Stingl

arxiv:1812.04906 v1 · 2018-12-12 · 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{FFSDHC7CXH7BSP5ZJJQXNMAPPO}

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	2026-05-17T23:58:26.960642Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2964338be2b9fe193fb94a6176b00f7b9d1857162d0148053225bcf05c9679b7

Aliases

arxiv: 1812.04906 · arxiv_version: 1812.04906v1 · doi: 10.48550/arxiv.1812.04906 · pith_short_12: FFSDHC7CXH7B · pith_short_16: FFSDHC7CXH7BSP5Z · pith_short_8: FFSDHC7C

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/FFSDHC7CXH7BSP5ZJJQXNMAPPO \
  | 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: 2964338be2b9fe193fb94a6176b00f7b9d1857162d0148053225bcf05c9679b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a966a8368fb601efc8d78eed45bb1d9cb3f92d0419af35c056ad110ec2d24d65",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-12-12T11:39:08Z",
    "title_canon_sha256": "d3d561d88a6a0f9516f4796629f6bbb5a223017dfbb54333197d519d2e32c3bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04906",
    "kind": "arxiv",
    "version": 1
  }
}