pith. sign in
Pith Number

pith:XIUWQFYL

pith:2006:XIUWQFYLAOBUMQVEJRPX2RQ75J
not attested not anchored not stored refs pending

Refuting the odd number limitation of time-delayed feedback control

B. Fiedler, E. Schoell, M. Georgi, P. Hoevel, V. Flunkert

arxiv:nlin/0609056 v2 · 2006-09-22 · nlin.CD

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{XIUWQFYLAOBUMQVEJRPX2RQ75J}

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 2026-05-18T04:35:06.094342Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

ba2968170b03834642a44c5f7d461fea5b6391b13bcd2d2de994e76349590b66

Aliases

arxiv: nlin/0609056 · arxiv_version: nlin/0609056v2 · doi: 10.48550/arxiv.nlin/0609056 · pith_short_12: XIUWQFYLAOBU · pith_short_16: XIUWQFYLAOBUMQVE · pith_short_8: XIUWQFYL
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/XIUWQFYLAOBUMQVEJRPX2RQ75J \
  | 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: ba2968170b03834642a44c5f7d461fea5b6391b13bcd2d2de994e76349590b66
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "891024f85369e1e52e316d98cae6903d44b7ab2f66d606ecadcdbd965d70411e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "nlin.CD",
    "submitted_at": "2006-09-22T12:17:54Z",
    "title_canon_sha256": "eb3f85e0f2f463c5a920cb4cde97f54259059beb421621344c788dd752daa2ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0609056",
    "kind": "arxiv",
    "version": 2
  }
}