Pith Number

pith:RUJKW7SO

pith:2013:RUJKW7SOQKX5G2GH5PRW34D7P3

not attested not anchored not stored refs pending

The Pseudospectrum of the Zakharov-Shabat System

Michael VanValkenburgh

arxiv:1310.8365 v2 · 2013-10-31 · nlin.SI · 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{RUJKW7SOQKX5G2GH5PRW34D7P3}

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	2026-05-18T02:58:56.624833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d12ab7e4e82afd368c7ebe36df07f7ee7cd67a65bd717e7278769d6190275e3

Aliases

arxiv: 1310.8365 · arxiv_version: 1310.8365v2 · doi: 10.48550/arxiv.1310.8365 · pith_short_12: RUJKW7SOQKX5 · pith_short_16: RUJKW7SOQKX5G2GH · pith_short_8: RUJKW7SO

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/RUJKW7SOQKX5G2GH5PRW34D7P3 \
  | 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: 8d12ab7e4e82afd368c7ebe36df07f7ee7cd67a65bd717e7278769d6190275e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8c75f9052843bbd427122f02ef64a13f9eedb83c96d7277c0784afb3de4721c",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2013-10-31T02:16:32Z",
    "title_canon_sha256": "3ae5b15a1e24bb352fed58660377bf0c28fc6edc985ab8a7fddb86e1a97bc145"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.8365",
    "kind": "arxiv",
    "version": 2
  }
}