Pith Number

pith:VU4MSVQH

pith:2017:VU4MSVQH5FGHWZAZIPRXQIL6C4

not attested not anchored not stored refs pending

Lens rigidity in scattering by non-trapping obstacles

Luchezar Stoyanov

arxiv:1709.01692 v1 · 2017-09-06 · math-ph · math.DG · math.DS · 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{VU4MSVQH5FGHWZAZIPRXQIL6C4}

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	2026-05-18T00:35:54.583404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad38c95607e94c7b641943e378217e17394b67a62a115e80ff037cc52f294a00

Aliases

arxiv: 1709.01692 · arxiv_version: 1709.01692v1 · doi: 10.48550/arxiv.1709.01692 · pith_short_12: VU4MSVQH5FGH · pith_short_16: VU4MSVQH5FGHWZAZ · pith_short_8: VU4MSVQH

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/VU4MSVQH5FGHWZAZIPRXQIL6C4 \
  | 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: ad38c95607e94c7b641943e378217e17394b67a62a115e80ff037cc52f294a00

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e83b0ffa2692c04c04ebf86614a50c3cc1e7a7fb51421e8ec915b8089db0c857",
    "cross_cats_sorted": [
      "math.DG",
      "math.DS",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2017-09-06T06:51:32Z",
    "title_canon_sha256": "f5d6b7c509d6658a670f9340043935265dcdfc737bcce7aaa03056207c82041d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.01692",
    "kind": "arxiv",
    "version": 1
  }
}