Pith Number

pith:XTXQZJO3

pith:2023:XTXQZJO3RGZ5KSYMSVZKEFMDTM

not attested not anchored not stored refs pending

Topology Optimization of self-contacting structures

Andreas Henrik Frederiksen, Konstantinos Poulios, Ole Sigmund

arxiv:2305.06750 v1 · 2023-05-11 · cs.CE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XTXQZJO3RGZ5KSYMSVZKEFMDTM}

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	2026-07-05T06:09:15.664295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcef0ca5db89b3d54b0c9572a215839b306573cd930ea611e097d66c067a8d71

Aliases

arxiv: 2305.06750 · arxiv_version: 2305.06750v1 · doi: 10.48550/arxiv.2305.06750 · pith_short_12: XTXQZJO3RGZ5 · pith_short_16: XTXQZJO3RGZ5KSYM · pith_short_8: XTXQZJO3

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/XTXQZJO3RGZ5KSYMSVZKEFMDTM \
  | 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: bcef0ca5db89b3d54b0c9572a215839b306573cd930ea611e097d66c067a8d71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7067d6108f75b0d3f4c3cb4938a18f1129b2ac62d5cb0a0de7cf73cee467454",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2023-05-11T12:13:14Z",
    "title_canon_sha256": "718130202577536898a263ea2bac76a2edbe9a8237f5987ac3767ff721966a16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2305.06750",
    "kind": "arxiv",
    "version": 1
  }
}