Pith Number

pith:A5VS7CYV

pith:2018:A5VS7CYVTK3G4HXUEUT5VOT2YS

not attested not anchored not stored refs pending

IRA assisted MMC-based topology optimization method

Hu Wang, Kangjia Mo, Yu Li, Zhenxing Cheng

arxiv:1810.07021 v1 · 2018-10-16 · cs.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{A5VS7CYVTK3G4HXUEUT5VOT2YS}

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	2026-05-18T00:03:10.742764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

076b2f8b159ab66e1ef42527daba7ac4a59fbc96a7a584d54908cd92122dee3a

Aliases

arxiv: 1810.07021 · arxiv_version: 1810.07021v1 · doi: 10.48550/arxiv.1810.07021 · pith_short_12: A5VS7CYVTK3G · pith_short_16: A5VS7CYVTK3G4HXU · pith_short_8: A5VS7CYV

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/A5VS7CYVTK3G4HXUEUT5VOT2YS \
  | 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: 076b2f8b159ab66e1ef42527daba7ac4a59fbc96a7a584d54908cd92122dee3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afb0736eb3705b6628f20a9a24cc0873d6b495691341f593b36e756274f05c1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2018-10-16T14:19:21Z",
    "title_canon_sha256": "61b5cc002f8c64eaa0a750c04fb118d3cb2e3d69b9ed4ad1f4757614abc54222"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.07021",
    "kind": "arxiv",
    "version": 1
  }
}