Pith Number

pith:JB67R4JL

pith:2012:JB67R4JLZOZZCB4BTJNZY5CFBJ

not attested not anchored not stored refs pending

Stability of the determination of the surface impedance of an obstacle from the scattering amplitude

Aymen Jbalia, Mourad Bellassoued, Mourad Choulli (LMAM)

arxiv:1201.2552 v4 · 2012-01-12 · 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{JB67R4JLZOZZCB4BTJNZY5CFBJ}

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	2026-05-18T01:58:52.215395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

487df8f12bcbb39107819a5b9c74450a5c3de1302016d6f400deb52e3d0b0ab7

Aliases

arxiv: 1201.2552 · arxiv_version: 1201.2552v4 · doi: 10.48550/arxiv.1201.2552 · pith_short_12: JB67R4JLZOZZ · pith_short_16: JB67R4JLZOZZCB4B · pith_short_8: JB67R4JL

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/JB67R4JLZOZZCB4BTJNZY5CFBJ \
  | 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: 487df8f12bcbb39107819a5b9c74450a5c3de1302016d6f400deb52e3d0b0ab7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31a92047f98703741c1f190c73b0905d5d780acbc565deda17eaea46af351888",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-01-12T12:52:13Z",
    "title_canon_sha256": "88ae4cea375adf1a3083cb9065e36814fac380a693a3eda1b3edf8f1fe4dd6e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2552",
    "kind": "arxiv",
    "version": 4
  }
}