Pith Number

pith:OXL72OVL

pith:2022:OXL72OVLUXYVIZXNYC2JHTLNUV

not attested not anchored not stored refs pending

First-Order Bilevel Topology Optimization for Fast Mechanical Design

Kui Wu, Xifeng Gao, Zherong Pan

arxiv:2204.06204 v1 · 2022-04-13 · cs.RO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OXL72OVLUXYVIZXNYC2JHTLNUV}

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	2026-07-05T04:14:31.271264Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75d7fd3aaba5f15466edc0b493cd6da5616c096916f1d4e14cefbd1e6d0007a3

Aliases

arxiv: 2204.06204 · arxiv_version: 2204.06204v1 · doi: 10.48550/arxiv.2204.06204 · pith_short_12: OXL72OVLUXYV · pith_short_16: OXL72OVLUXYVIZXN · pith_short_8: OXL72OVL

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/OXL72OVLUXYVIZXNYC2JHTLNUV \
  | 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: 75d7fd3aaba5f15466edc0b493cd6da5616c096916f1d4e14cefbd1e6d0007a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf98907b0082d4d41babdf224be28c1cc748f121bfb10c9e485ca5fd94c0e263",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2022-04-13T07:17:31Z",
    "title_canon_sha256": "c111ea5a0b9a23d09baefb797d43dd5a7a5fd94166589e58fb39461e90702a57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.06204",
    "kind": "arxiv",
    "version": 1
  }
}