Pith Number

pith:EUXIABMG

pith:2020:EUXIABMGWCDPS5I3UMJHYU6AKV

not attested not anchored not stored refs pending

A globally convergent method to accelerate topology optimization using on-the-fly model reduction

Masayuki Yano, Matthew J. Zahr, Tianci Huang

arxiv:2004.05756 v2 · 2020-04-13 · math.NA · cs.NA · 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{EUXIABMGWCDPS5I3UMJHYU6AKV}

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	2026-07-05T02:11:46.534916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

252e800586b086f9751ba3127c53c0554430811bbc133c610ae5f5303bdf1860

Aliases

arxiv: 2004.05756 · arxiv_version: 2004.05756v2 · doi: 10.48550/arxiv.2004.05756 · pith_short_12: EUXIABMGWCDP · pith_short_16: EUXIABMGWCDPS5I3 · pith_short_8: EUXIABMG

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/EUXIABMGWCDPS5I3UMJHYU6AKV \
  | 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: 252e800586b086f9751ba3127c53c0554430811bbc133c610ae5f5303bdf1860

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "703893357ed6a594677f38eda7f5cf9a29ea1403ac9f53bee8593140f1c58079",
    "cross_cats_sorted": [
      "cs.NA",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-04-13T03:38:37Z",
    "title_canon_sha256": "86e1cd47ef9b002d414c6016e4ccf2a5368a54674ed808af470aa9ead6be8398"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.05756",
    "kind": "arxiv",
    "version": 2
  }
}