Pith Number

pith:LJ4LPMIJ

pith:2015:LJ4LPMIJ6WIMCB3A2BL5KMB3TE

not attested not anchored not stored refs pending

Optimal Decomposition and Recombination of Isostatic Geometric Constraint Systems for Designing Layered Materials

Joel Willoughby, Meera Sitharam, Menghan Wang, Troy Baker

arxiv:1507.01158 v1 · 2015-07-05 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LJ4LPMIJ6WIMCB3A2BL5KMB3TE}

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	2026-05-18T01:37:17.970659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a78b7b109f590c10760d057d5303b992597ac95521b3e2ff2ac7e4253285c03

Aliases

arxiv: 1507.01158 · arxiv_version: 1507.01158v1 · doi: 10.48550/arxiv.1507.01158 · pith_short_12: LJ4LPMIJ6WIM · pith_short_16: LJ4LPMIJ6WIMCB3A · pith_short_8: LJ4LPMIJ

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/LJ4LPMIJ6WIMCB3A2BL5KMB3TE \
  | 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: 5a78b7b109f590c10760d057d5303b992597ac95521b3e2ff2ac7e4253285c03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7812b9f372df2cb3a2c0adb0b81a5b4ef03806d9206e8ba4a0d77376c0af172b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2015-07-05T02:05:17Z",
    "title_canon_sha256": "afa26297d5a89c3eb741cd55d2498f446afec12302ec6c0355b59241f66cb90e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01158",
    "kind": "arxiv",
    "version": 1
  }
}