Pith Number

pith:NLPCX3QC

pith:2015:NLPCX3QCSTTEQU6FVYIQSD5L7T

not attested not anchored not stored refs pending

Observers for invariant systems on Lie groups with biased input measurements and homogeneous outputs

Alireza Khosravian, Christian Lageman, Jochen Trumpf, Robert Mahony

arxiv:1507.03770 v1 · 2015-07-14 · 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{NLPCX3QCSTTEQU6FVYIQSD5L7T}

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	2026-05-18T01:36:57.391828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ade2bee0294e64853c5ae11090fabfcf8def099308e2ff4ea592a61075332f5

Aliases

arxiv: 1507.03770 · arxiv_version: 1507.03770v1 · doi: 10.48550/arxiv.1507.03770 · pith_short_12: NLPCX3QCSTTE · pith_short_16: NLPCX3QCSTTEQU6F · pith_short_8: NLPCX3QC

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/NLPCX3QCSTTEQU6FVYIQSD5L7T \
  | 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: 6ade2bee0294e64853c5ae11090fabfcf8def099308e2ff4ea592a61075332f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4decf4188f62307d7d76efa98d703bdcd585cb130b24d906247072e3fdd9e2b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2015-07-14T08:53:02Z",
    "title_canon_sha256": "72aae32403c89deee0b665ef7c637cdfa15cf30fa3d1155f3b033540b3b81140"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03770",
    "kind": "arxiv",
    "version": 1
  }
}