Pith Number

pith:E7YBT3BG

pith:2011:E7YBT3BGD3WIEYMXPMEXWFKEFD

not attested not anchored not stored refs pending

The effective conductivity of arrays of squares: large random unit cells and extreme contrast ratios

Johan Helsing

arxiv:1106.1767 v1 · 2011-06-09 · physics.comp-ph · cond-mat.dis-nn · cond-mat.mtrl-sci · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E7YBT3BGD3WIEYMXPMEXWFKEFD}

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	2026-05-18T02:01:40.447956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27f019ec261eec8261977b097b154428de4c58b8eaf7e2c8e3f30e701798d335

Aliases

arxiv: 1106.1767 · arxiv_version: 1106.1767v1 · doi: 10.48550/arxiv.1106.1767 · pith_short_12: E7YBT3BGD3WI · pith_short_16: E7YBT3BGD3WIEYMX · pith_short_8: E7YBT3BG

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/E7YBT3BGD3WIEYMXPMEXWFKEFD \
  | 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: 27f019ec261eec8261977b097b154428de4c58b8eaf7e2c8e3f30e701798d335

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1d0a1bf1ea8cd429ccf02b3d1fea0d3289071a5e0692e5877975464cd91e3c3",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "cond-mat.mtrl-sci",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2011-06-09T10:18:29Z",
    "title_canon_sha256": "43824af7bbb564dd626b8d866dd1b008b71b862006acbcb6420be26b3d470b0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.1767",
    "kind": "arxiv",
    "version": 1
  }
}