Pith Number

pith:F6KEBJIQ

pith:2020:F6KEBJIQFYF2CRCPRLX7ONDGYA

not attested not anchored not stored refs pending

3D architected isotropic materials with tunable stiffness and buckling strength

Fengwen Wang, Ole Sigmund

arxiv:2012.01359 v2 · 2020-12-02 · math.NA · cs.CE · 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{F6KEBJIQFYF2CRCPRLX7ONDGYA}

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	2026-07-05T02:37:07.535358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f9440a5102e0ba1444f8aeff73466c028f39e4cd4165df528dfe6b92f528bfc

Aliases

arxiv: 2012.01359 · arxiv_version: 2012.01359v2 · doi: 10.48550/arxiv.2012.01359 · pith_short_12: F6KEBJIQFYF2 · pith_short_16: F6KEBJIQFYF2CRCP · pith_short_8: F6KEBJIQ

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/F6KEBJIQFYF2CRCPRLX7ONDGYA \
  | 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: 2f9440a5102e0ba1444f8aeff73466c028f39e4cd4165df528dfe6b92f528bfc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4cdeabf970a9f517d9dd14246211cfabb1e248f4005ed098e7d4f07c5961c45",
    "cross_cats_sorted": [
      "cs.CE",
      "cs.NA",
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-12-02T17:58:37Z",
    "title_canon_sha256": "9105a9d44e7dd8ba6d93cd5957c8384b441b398d4a75a471a605983acd0e0e1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.01359",
    "kind": "arxiv",
    "version": 2
  }
}