Pith Number

pith:XKEW4BBY

pith:2011:XKEW4BBYZGZRXIFT6LYLTM2E6K

not attested not anchored not stored refs pending

Discrete Exterior Geometry Approach to Structure-Preserving Discretization of Distributed-Parameter Port-Hamiltonian Systems

Arjan van der Schaft, Jacquelien M. A. Scherpen, Marko Seslija

arxiv:1111.6403 v2 · 2011-11-28 · math-ph · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XKEW4BBYZGZRXIFT6LYLTM2E6K}

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	2026-05-18T04:01:25.800394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba896e0438c9b31ba0b3f2f0b9b344f29046c6e8dc10d8acb6d275cbbed6d025

Aliases

arxiv: 1111.6403 · arxiv_version: 1111.6403v2 · doi: 10.48550/arxiv.1111.6403 · pith_short_12: XKEW4BBYZGZR · pith_short_16: XKEW4BBYZGZRXIFT · pith_short_8: XKEW4BBY

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/XKEW4BBYZGZRXIFT6LYLTM2E6K \
  | 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: ba896e0438c9b31ba0b3f2f0b9b344f29046c6e8dc10d8acb6d275cbbed6d025

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4066e33a329a446d602da76b415160065b6033aaa442ec7cdba6f9c2c3a70543",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2011-11-28T10:57:34Z",
    "title_canon_sha256": "9fc0ef98c86fb9c2dfd73bd93c55bddb93c357d23c2b9e179f1db464ba19b418"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.6403",
    "kind": "arxiv",
    "version": 2
  }
}