Pith Number

pith:X3O2A6TK

pith:2016:X3O2A6TKEPXOT3YWFUBP2TKJSE

not attested not anchored not stored refs pending

Framework for state and unknown input estimation of linear time-varying systems

Cornelis C. de Visser, Erik-jan van Kampen, Peng Lu, Qiping Chu

arxiv:1606.08090 v1 · 2016-06-26 · eess.SY · cs.IT · cs.SY · math.IT · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X3O2A6TKEPXOT3YWFUBP2TKJSE}

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	2026-06-04T18:09:50.893773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bedda07a6a23eee9ef162d02fd4d4991022c016b2bf5af4fde36ef429806c744

Aliases

arxiv: 1606.08090 · arxiv_version: 1606.08090v1 · doi: 10.48550/arxiv.1606.08090 · pith_short_12: X3O2A6TKEPXO · pith_short_16: X3O2A6TKEPXOT3YW · pith_short_8: X3O2A6TK

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/X3O2A6TKEPXOT3YWFUBP2TKJSE \
  | 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: bedda07a6a23eee9ef162d02fd4d4991022c016b2bf5af4fde36ef429806c744

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ced54d38e165d39cae64c899fd74c73ac03480f35837200a448a7209cf89560",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.SY",
      "math.IT",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2016-06-26T22:14:44Z",
    "title_canon_sha256": "2745865100eb77824b765b18cc8a3085c90122ea1814186931c9763eacdfbfa7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.08090",
    "kind": "arxiv",
    "version": 1
  }
}