Pith Number

pith:WKKUU2OP

pith:2021:WKKUU2OPV3WOGSPCLY6MEJ6WNU

not attested not anchored not stored refs pending

Learned Global Optimization for Inverse Scattering Problems -- Matching Global Search with Computational Efficiency

Andrea Massa, Lorenzo Poli, Marco Salucci, Paolo Rocca

arxiv:2107.00332 v1 · 2021-07-01 · eess.SY · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WKKUU2OPV3WOGSPCLY6MEJ6WNU}

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	2026-07-05T04:59:12.113002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2954a69cfaeece349e25e3cc227d66d25b354137e132aaf7a6e0cc69894b19b

Aliases

arxiv: 2107.00332 · arxiv_version: 2107.00332v1 · doi: 10.48550/arxiv.2107.00332 · pith_short_12: WKKUU2OPV3WO · pith_short_16: WKKUU2OPV3WOGSPC · pith_short_8: WKKUU2OP

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/WKKUU2OPV3WOGSPCLY6MEJ6WNU \
  | 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: b2954a69cfaeece349e25e3cc227d66d25b354137e132aaf7a6e0cc69894b19b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d89c4f0556b1f45bed3f2c55a41ebef6adec92998b7a14fb4fd7faf63c511ac5",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2021-07-01T09:48:59Z",
    "title_canon_sha256": "bc923d650adc9b9ffcc3f4a5a046f27103cdcd7bc6e2c11cb0e840a7fc1bf805"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.00332",
    "kind": "arxiv",
    "version": 1
  }
}