Pith Number

pith:56RVETCF

pith:2013:56RVETCFM7U6JOA2ASZZHHVGTD

not attested not anchored not stored refs pending

An odd-number limitation of extended time-delayed feedback control in autonomous systems

Andreas Amann, Edward W. Hooton

arxiv:1307.8316 v1 · 2013-07-31 · nlin.CD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{56RVETCFM7U6JOA2ASZZHHVGTD}

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	2026-05-18T01:48:32.259702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efa3524c4567e9e4b81a04b3939ea698db6e7bc82f3f2adbfba945d7a9b6223b

Aliases

arxiv: 1307.8316 · arxiv_version: 1307.8316v1 · doi: 10.48550/arxiv.1307.8316 · pith_short_12: 56RVETCFM7U6 · pith_short_16: 56RVETCFM7U6JOA2 · pith_short_8: 56RVETCF

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/56RVETCFM7U6JOA2ASZZHHVGTD \
  | 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: efa3524c4567e9e4b81a04b3939ea698db6e7bc82f3f2adbfba945d7a9b6223b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41ca7bcd0f35903dd45fabb2e613c1771366dfb53e91925fc38b5587d5ce435d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2013-07-31T13:36:50Z",
    "title_canon_sha256": "3fc30670bbb2c8a68cfedb5ea3715560a0ffb37e3daa8f95b8e630ec95c485f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.8316",
    "kind": "arxiv",
    "version": 1
  }
}