Pith Number

pith:PKZ42ZXA

pith:2018:PKZ42ZXA7UJETLNBDGQPZQYBTJ

not attested not anchored not stored refs pending

A recursive estimation approach to distributed identification of large-scale multi-input-single-output FIR systems

Mircea Lazar, Paul M.J. Van den Hof, Tom R.V. Steentjes

arxiv:1807.08141 v1 · 2018-07-21 · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PKZ42ZXA7UJETLNBDGQPZQYBTJ}

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	2026-05-18T00:10:09.142534Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ab3cd66e0fd1249ada119a0fcc3019a6c0741f79b4402d59b8bc3aa6ee8206b

Aliases

arxiv: 1807.08141 · arxiv_version: 1807.08141v1 · doi: 10.48550/arxiv.1807.08141 · pith_short_12: PKZ42ZXA7UJE · pith_short_16: PKZ42ZXA7UJETLNB · pith_short_8: PKZ42ZXA

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/PKZ42ZXA7UJETLNBDGQPZQYBTJ \
  | 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: 7ab3cd66e0fd1249ada119a0fcc3019a6c0741f79b4402d59b8bc3aa6ee8206b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e8a37bb7fcbfbbbde360475f129448eb08997e18e9585fee7555285efbe2bb2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2018-07-21T12:44:16Z",
    "title_canon_sha256": "00b892fc550a3870c1a85b61813ad87035f06550dca2826e8caae5a01827313b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.08141",
    "kind": "arxiv",
    "version": 1
  }
}