Pith Number

pith:IP66IULD

pith:2022:IP66IULDRUHWNC2KNGMNNJ2AOL

not attested not anchored not stored refs pending

Data-driven Topology Optimization (DDTO) for Three-dimensional Continuum Structures

Dongsheng Yang, Lubin Wang, Ruiyi Su, Shan Tang, Tien Zhang, Wen Meng, Xu Guo, Yunhang Guo, Zongliang Du

arxiv:2211.05370 v1 · 2022-11-10 · 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{IP66IULDRUHWNC2KNGMNNJ2AOL}

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	2026-07-05T05:15:03.765628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43fde451638d0f668b4a6998d6a74072fc1ef97239c8750ca1b6920658126ac3

Aliases

arxiv: 2211.05370 · arxiv_version: 2211.05370v1 · doi: 10.48550/arxiv.2211.05370 · pith_short_12: IP66IULDRUHW · pith_short_16: IP66IULDRUHWNC2K · pith_short_8: IP66IULD

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/IP66IULDRUHWNC2KNGMNNJ2AOL \
  | 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: 43fde451638d0f668b4a6998d6a74072fc1ef97239c8750ca1b6920658126ac3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9489ce61481df2bce95555766cb05ae7cd3484fe9f50966577746a3bc6fc965",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2022-11-10T06:40:43Z",
    "title_canon_sha256": "af9d53369fad7dd12d8174b8e0819248cecd8cc35b0316792ba20fbb59ba4fde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.05370",
    "kind": "arxiv",
    "version": 1
  }
}