Pith Number

pith:GLXSUHS3

pith:2018:GLXSUHS33FF7EKB6UVJOPU4PFR

not attested not anchored not stored refs pending

Robust port-Hamiltonian representations of passive systems

Christopher Beattie, Paul Van Dooren, Volker Mehrmann

arxiv:1801.05018 v2 · 2018-01-15 · 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{GLXSUHS33FF7EKB6UVJOPU4PFR}

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	2026-05-18T00:25:28.489938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

32ef2a1e5bd94bf2283ea552e7d38f2c5aea848055f40339f9ef64ca2396ee96

Aliases

arxiv: 1801.05018 · arxiv_version: 1801.05018v2 · doi: 10.48550/arxiv.1801.05018 · pith_short_12: GLXSUHS33FF7 · pith_short_16: GLXSUHS33FF7EKB6 · pith_short_8: GLXSUHS3

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/GLXSUHS33FF7EKB6UVJOPU4PFR \
  | 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: 32ef2a1e5bd94bf2283ea552e7d38f2c5aea848055f40339f9ef64ca2396ee96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c2ab45722560cae4fccdac7d38465bdbba5895aa1edb2fed993e7e79f76c911",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-01-15T21:18:25Z",
    "title_canon_sha256": "057c2004cf376e650f5a7a8aef2cae74a9ad577769484e6f5206617c172c6716"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.05018",
    "kind": "arxiv",
    "version": 2
  }
}