Pith Number

pith:UP6PJGVY

pith:2012:UP6PJGVYZFTRTFAKFEOYYSOZK4

not attested not anchored not stored refs pending

A new approximate mathematical model for global convergence for a coefficient inverse problem with backscattering data

Larisa Beilina, Michael V. Klibanov

arxiv:1209.3544 v1 · 2012-09-17 · 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{UP6PJGVYZFTRTFAKFEOYYSOZK4}

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	2026-05-18T03:45:30.692876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3fcf49ab8c96719940a291d8c49d95721455034eed7a0e8ce479c544387e304

Aliases

arxiv: 1209.3544 · arxiv_version: 1209.3544v1 · doi: 10.48550/arxiv.1209.3544 · pith_short_12: UP6PJGVYZFTR · pith_short_16: UP6PJGVYZFTRTFAK · pith_short_8: UP6PJGVY

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/UP6PJGVYZFTRTFAKFEOYYSOZK4 \
  | 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: a3fcf49ab8c96719940a291d8c49d95721455034eed7a0e8ce479c544387e304

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59e2135737ec3069b88a408d32277c4ad22c6c892fe0f6495c8e585142520c94",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2012-09-17T03:03:29Z",
    "title_canon_sha256": "8bcb2d6ebf0ca515184f76291fc41a710785fc35fcbc4ad389a6a768c5bf38a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3544",
    "kind": "arxiv",
    "version": 1
  }
}