Pith Number

pith:LAFMXQQJ

pith:2017:LAFMXQQJSX5KVLRGS4JQCLPHH6

not attested not anchored not stored refs pending

Port-Hamiltonian descriptor systems

Christopher Beattie, Hans Zwart, Hongguo Xu, Volker Mehrmann

arxiv:1705.09081 v2 · 2017-05-25 · 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{LAFMXQQJSX5KVLRGS4JQCLPHH6}

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	2026-05-18T00:36:38.448956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

580acbc20995faaaae269713012de73fa4ff2bec816bf40eba9c37fdd0c87384

Aliases

arxiv: 1705.09081 · arxiv_version: 1705.09081v2 · doi: 10.48550/arxiv.1705.09081 · pith_short_12: LAFMXQQJSX5K · pith_short_16: LAFMXQQJSX5KVLRG · pith_short_8: LAFMXQQJ

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/LAFMXQQJSX5KVLRGS4JQCLPHH6 \
  | 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: 580acbc20995faaaae269713012de73fa4ff2bec816bf40eba9c37fdd0c87384

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b157d0de24c5a62ae7a9fc4a56da7c8cee77563faff2123a991c2a78227540b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-05-25T07:55:37Z",
    "title_canon_sha256": "b7f0981f4c958471adae3498081b1223c1c41e413b0a83a5010756b411c90814"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.09081",
    "kind": "arxiv",
    "version": 2
  }
}