Pith Number

pith:ECS47YMC

pith:2013:ECS47YMCGBXNT6SBMF6ZMCPQFV

not attested not anchored not stored refs pending

Mechanics of Tunable Helices and Geometric Frustration in Biomimetic Seashells

Junjie Lin, Kun Ren, Larry A. Taber, Pinqiang Dai, Qiaohang Guo, Wei Li, Wenzhe Chen, Zi Chen

arxiv:1312.0663 v2 · 2013-12-03 · math-ph · cond-mat.soft · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ECS47YMCGBXNT6SBMF6ZMCPQFV}

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	2026-05-18T01:45:59.476943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20a5cfe182306ed9fa41617d9609f02d73002947ff086333eec74857d8c3cc21

Aliases

arxiv: 1312.0663 · arxiv_version: 1312.0663v2 · doi: 10.48550/arxiv.1312.0663 · pith_short_12: ECS47YMCGBXN · pith_short_16: ECS47YMCGBXNT6SB · pith_short_8: ECS47YMC

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/ECS47YMCGBXNT6SBMF6ZMCPQFV \
  | 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: 20a5cfe182306ed9fa41617d9609f02d73002947ff086333eec74857d8c3cc21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "797c73aff347119c54e0285c96a6c8a3dd81ce6e87685da8a422532852d06206",
    "cross_cats_sorted": [
      "cond-mat.soft",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2013-12-03T00:10:16Z",
    "title_canon_sha256": "d5c1bd1ac06f625070a8d4249011db4a0e4b8cd99b0e87c71da9bb10fc66db78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.0663",
    "kind": "arxiv",
    "version": 2
  }
}