Pith Number

pith:CRATU7VH

pith:2014:CRATU7VHCL6AM57HMR3DDM4JPO

not attested not anchored not stored refs pending

Acoustic scattering by fractal screens: mathematical formulations and wavenumber-explicit continuity and coercivity estimates

David P. Hewett, Simon N. Chandler-Wilde

arxiv:1401.2805 v2 · 2014-01-13 · math.AP · 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{CRATU7VHCL6AM57HMR3DDM4JPO}

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	2026-05-18T02:20:59.490661Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14413a7ea712fc0677e7647631b3897baa9d6e9904f9cf8384364e0ae2897008

Aliases

arxiv: 1401.2805 · arxiv_version: 1401.2805v2 · doi: 10.48550/arxiv.1401.2805 · pith_short_12: CRATU7VHCL6A · pith_short_16: CRATU7VHCL6AM57H · pith_short_8: CRATU7VH

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/CRATU7VHCL6AM57HMR3DDM4JPO \
  | 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: 14413a7ea712fc0677e7647631b3897baa9d6e9904f9cf8384364e0ae2897008

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "558e1907e9ad4c6774dbfa5f105f40435e712557d010c4e73e1786d698efdd41",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-01-13T12:14:20Z",
    "title_canon_sha256": "d6da9a2a4166741200731cc8d30f11ad9fa1605e1090764a43f9989e221f9fbf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.2805",
    "kind": "arxiv",
    "version": 2
  }
}