Pith Number

pith:P54CYILN

pith:2026:P54CYILNOSZF7D6ZUN5XAXE2OM

not attested not anchored not stored refs pending

A Design Framework for Compositional Hierarchical Mechanical Metamaterials via a Qualitative Unit-Cell Library

Girish Krishnan, Shammo Dutta, Sree Kalyan Patiballa

arxiv:2605.20219 v1 · 2026-05-11 · cond-mat.soft · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P54CYILNOSZF7D6ZUN5XAXE2OM}

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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	2026-05-21T00:04:21.537105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f782c216d74b25f8fd9a37b705c9a730f448caa9dd7f6286726e08959be2189

Aliases

arxiv: 2605.20219 · arxiv_version: 2605.20219v1 · doi: 10.48550/arxiv.2605.20219 · pith_short_12: P54CYILNOSZF · pith_short_16: P54CYILNOSZF7D6Z · pith_short_8: P54CYILN

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/P54CYILNOSZF7D6ZUN5XAXE2OM \
  | 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: 7f782c216d74b25f8fd9a37b705c9a730f448caa9dd7f6286726e08959be2189

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "347ea94db43b5cc2eb7361773d0aee42f4f1b8c2c05a871503ac1c9031e2adf5",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2026-05-11T22:58:40Z",
    "title_canon_sha256": "412acdbc32b804a47528a9f59e7a7f2593f3de184ce4e7fa654ff1b61792c4e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.20219",
    "kind": "arxiv",
    "version": 1
  }
}