Pith Number

pith:PWUEJSQ5

pith:2018:PWUEJSQ5EPCM6BRSHU2YEXYGXP

not attested not anchored not stored refs pending

Observer-Based Controller Design for Systems on Manifolds in Euclidean Space

Dong Eui Chang

arxiv:1806.06224 v1 · 2018-06-16 · math.OC · 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{PWUEJSQ5EPCM6BRSHU2YEXYGXP}

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	2026-05-18T00:13:03.233650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7da844ca1d23c4cf06323d35825f06bbcf8ef832c1ba95a1d341721fc563edc3

Aliases

arxiv: 1806.06224 · arxiv_version: 1806.06224v1 · doi: 10.48550/arxiv.1806.06224 · pith_short_12: PWUEJSQ5EPCM · pith_short_16: PWUEJSQ5EPCM6BRS · pith_short_8: PWUEJSQ5

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/PWUEJSQ5EPCM6BRSHU2YEXYGXP \
  | 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: 7da844ca1d23c4cf06323d35825f06bbcf8ef832c1ba95a1d341721fc563edc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cd16860ace1658220dfdbc532403813ce31ced1c91f19df9f5f7fc2a98ebdc7",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-06-16T11:25:36Z",
    "title_canon_sha256": "ae38d6e4b556141bce62728a416baa277dbde72ed127d843f1be5e3867961e15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.06224",
    "kind": "arxiv",
    "version": 1
  }
}