Pith Number

pith:P7VZFMSO

pith:2010:P7VZFMSOGUO4A2NUZHKWFTQVBS

not attested not anchored not stored refs pending

Characteristic matrices for linear periodic delay differential equations

Jan Sieber, Robert Szalai

arxiv:1005.4522 v3 · 2010-05-25 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P7VZFMSOGUO4A2NUZHKWFTQVBS}

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	2026-05-18T02:23:56.131429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7feb92b24e351dc069b4c9d562ce150cbf77fd95336ca23e1cc9501c9ab921af

Aliases

arxiv: 1005.4522 · arxiv_version: 1005.4522v3 · doi: 10.48550/arxiv.1005.4522 · pith_short_12: P7VZFMSOGUO4 · pith_short_16: P7VZFMSOGUO4A2NU · pith_short_8: P7VZFMSO

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/P7VZFMSOGUO4A2NUZHKWFTQVBS \
  | 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: 7feb92b24e351dc069b4c9d562ce150cbf77fd95336ca23e1cc9501c9ab921af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b28cd11df7f62b8ca67184fec6d6a4e5abce03551d333bc8b7933b432dcc75b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2010-05-25T09:54:32Z",
    "title_canon_sha256": "f3b2e33547e673e347fff6d389090a98feefbec4ea0c4a5fa0ca6b8b500c9de9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.4522",
    "kind": "arxiv",
    "version": 3
  }
}