Pith Number

pith:CO2PK5DV

pith:2016:CO2PK5DVKMUEPSELDJ7GKE5KUZ

not attested not anchored not stored refs pending

Well-posed PDE and integral equation formulations for scattering by fractal screens

David P. Hewett, Simon N. Chandler-Wilde

arxiv:1611.09539 v3 · 2016-11-29 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CO2PK5DVKMUEPSELDJ7GKE5KUZ}

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	2026-05-18T00:34:15.629699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13b4f57475532847c88b1a7e6513aaa679c6232355cd9f8ef91ff96820155f32

Aliases

arxiv: 1611.09539 · arxiv_version: 1611.09539v3 · doi: 10.48550/arxiv.1611.09539 · pith_short_12: CO2PK5DVKMUE · pith_short_16: CO2PK5DVKMUEPSEL · pith_short_8: CO2PK5DV

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/CO2PK5DVKMUEPSELDJ7GKE5KUZ \
  | 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: 13b4f57475532847c88b1a7e6513aaa679c6232355cd9f8ef91ff96820155f32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e842c6124d4159dd578e87a0a633311097e4e828c9a4498335a9d1ebf03eae76",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2016-11-29T09:34:27Z",
    "title_canon_sha256": "14714c6b66a9f1a47c2028c82566122a3bbdde0cf3a5292841a77296af9c49ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.09539",
    "kind": "arxiv",
    "version": 3
  }
}