Pith Number

pith:4DPU7T3N

pith:2019:4DPU7T3NCVGZLRIA7KG4AA3YTV

not attested not anchored not stored refs pending

Shadowing and structural stability in linear dynamical systems

Ali Messaoudi, Nilson C. Bernardes Jr.

arxiv:1902.04386 v1 · 2019-02-12 · math.DS · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4DPU7T3NCVGZLRIA7KG4AA3YTV}

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	2026-05-17T23:54:12.422028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0df4fcf6d154d95c500fa8dc003789d4518341a50adfef3e4bd712b245aa3ba

Aliases

arxiv: 1902.04386 · arxiv_version: 1902.04386v1 · doi: 10.48550/arxiv.1902.04386 · pith_short_12: 4DPU7T3NCVGZ · pith_short_16: 4DPU7T3NCVGZLRIA · pith_short_8: 4DPU7T3N

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/4DPU7T3NCVGZLRIA7KG4AA3YTV \
  | 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: e0df4fcf6d154d95c500fa8dc003789d4518341a50adfef3e4bd712b245aa3ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f772e597e6e418af2907bfbb4005d90011c39375998a35bc46c139b5cd147f15",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2019-02-12T13:51:28Z",
    "title_canon_sha256": "d4595f876077d9a537738eb51a08bff6337a81c482959d02533354873914c90e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.04386",
    "kind": "arxiv",
    "version": 1
  }
}