Pith Number

pith:AQSXY4XB

pith:2007:AQSXY4XBFVETGLNOLZPTOKZJLE

not attested not anchored not stored refs pending

Non-linear Symmetry-preserving Observer on Lie Groups

P. Martin, P. Rouchon, S. Bonnabel

arxiv:0707.2286 v2 · 2007-07-16 · 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{AQSXY4XBFVETGLNOLZPTOKZJLE}

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	2026-05-18T00:59:12.054589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04257c72e12d49332dae5e5f372b295904a5a14e91732d9e62d376d6b6ea1524

Aliases

arxiv: 0707.2286 · arxiv_version: 0707.2286v2 · doi: 10.48550/arxiv.0707.2286 · pith_short_12: AQSXY4XBFVET · pith_short_16: AQSXY4XBFVETGLNO · pith_short_8: AQSXY4XB

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/AQSXY4XBFVETGLNOLZPTOKZJLE \
  | 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: 04257c72e12d49332dae5e5f372b295904a5a14e91732d9e62d376d6b6ea1524

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7378ca843b7c7af5123596ef5c1f1430a6f95f323d32d5e8ad119017da65a28f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.OC",
    "submitted_at": "2007-07-16T09:10:33Z",
    "title_canon_sha256": "627616ab90aae34b604e18c267d4078cdee795d49774b5ec3582d1e4ca676dae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.2286",
    "kind": "arxiv",
    "version": 2
  }
}