Pith Number

pith:4MKPTART

pith:2017:4MKPTARTJV3MW7HONCPUUMPAQO

not attested not anchored not stored refs pending

Synthesizing the Optimal Luenberger-type Observer for Nonlinear Systems

Jinsun Liu, Ram Vasudevan, Shankar Mohan

arxiv:1703.07494 v1 · 2017-03-22 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4MKPTARTJV3MW7HONCPUUMPAQO}

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	2026-05-18T00:48:06.884936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e314f982334d76cb7cee689f4a31e08399afc5df7070256b319c5d518ec8963b

Aliases

arxiv: 1703.07494 · arxiv_version: 1703.07494v1 · doi: 10.48550/arxiv.1703.07494 · pith_short_12: 4MKPTARTJV3M · pith_short_16: 4MKPTARTJV3MW7HO · pith_short_8: 4MKPTART

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/4MKPTARTJV3MW7HONCPUUMPAQO \
  | 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: e314f982334d76cb7cee689f4a31e08399afc5df7070256b319c5d518ec8963b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e7eaa19c52483e8f7696ab107e640d72e3aee6b373beaf431a23517bc4a1dc5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-03-22T02:26:22Z",
    "title_canon_sha256": "56bd78ee8dffe5f5023e75b481cb2547ff1acc9665aa59040693fafafe53c819"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.07494",
    "kind": "arxiv",
    "version": 1
  }
}