Pith Number

pith:E4Y6RIIG

pith:2013:E4Y6RIIGDMLWXHOAV5OFHQHXDZ

not attested not anchored not stored refs pending

Inverse scattering problem for Sturm-Liouville operator on non-compact A-graph. Uniqueness result

Mikhail Ignatyev

arxiv:1311.2862 v1 · 2013-11-12 · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E4Y6RIIGDMLWXHOAV5OFHQHXDZ}

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	2026-05-18T03:07:21.724941Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2731e8a1061b176b9dc0af5c53c0f71e6e88b40dd6aa77c2bea45b681c27dc02

Aliases

arxiv: 1311.2862 · arxiv_version: 1311.2862v1 · doi: 10.48550/arxiv.1311.2862 · pith_short_12: E4Y6RIIGDMLW · pith_short_16: E4Y6RIIGDMLWXHOA · pith_short_8: E4Y6RIIG

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/E4Y6RIIGDMLWXHOAV5OFHQHXDZ \
  | 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: 2731e8a1061b176b9dc0af5c53c0f71e6e88b40dd6aa77c2bea45b681c27dc02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b196a8ab2e5e96e246042d8adec721bb40b61cd5d83ba40d6ab24d5d486b6e21",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2013-11-12T18:08:55Z",
    "title_canon_sha256": "de69156a05d6ff6ef7e4d892b9043faf6aeed09518a05d6a3800f69376e09c8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.2862",
    "kind": "arxiv",
    "version": 1
  }
}