Pith Number

pith:OE2W2BB2

pith:2010:OE2W2BB2XADMJ3SGZOXB4RO3RV

not attested not anchored not stored refs pending

The probe and enclosure methods for inverse obstacle scattering problems. The past and present

Masaru Ikehata

arxiv:1002.0198 v4 · 2010-02-01 · math.AP · math-ph · 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{OE2W2BB2XADMJ3SGZOXB4RO3RV}

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	2026-05-18T04:12:44.939406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71356d043ab806c4ee46cbae1e45db8d6c79ffddd1c1d834072889b6fed9e28e

Aliases

arxiv: 1002.0198 · arxiv_version: 1002.0198v4 · doi: 10.48550/arxiv.1002.0198 · pith_short_12: OE2W2BB2XADM · pith_short_16: OE2W2BB2XADMJ3SG · pith_short_8: OE2W2BB2

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/OE2W2BB2XADMJ3SGZOXB4RO3RV \
  | 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: 71356d043ab806c4ee46cbae1e45db8d6c79ffddd1c1d834072889b6fed9e28e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3545ff3650c09a23f6924a36a2b2d971c695aff304e731285963b19fb8578b4d",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2010-02-01T08:31:15Z",
    "title_canon_sha256": "d60699dda63fff8868354c77196d9df98b924d537bc49c439a9d453a8e0d28e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.0198",
    "kind": "arxiv",
    "version": 4
  }
}