Pith Number

pith:L5RGVDBP

pith:2023:L5RGVDBPXGIJDALWAA4YZQYH7M

not attested not anchored not stored refs pending

Dictionary-based Online-adaptive Structure-preserving Model Order Reduction for Parametric Hamiltonian Systems

Bernard Haasdonk, Patrick Buchfink, Robin Herkert

arxiv:2303.18072 v1 · 2023-03-31 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L5RGVDBPXGIJDALWAA4YZQYH7M}

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	2026-07-05T08:20:22.261177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f626a8c2fb99091817600398cc307fb3b3ba109c26cc049d9af4bcae800e14c

Aliases

arxiv: 2303.18072 · arxiv_version: 2303.18072v1 · doi: 10.48550/arxiv.2303.18072 · pith_short_12: L5RGVDBPXGIJ · pith_short_16: L5RGVDBPXGIJDALW · pith_short_8: L5RGVDBP

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/L5RGVDBPXGIJDALWAA4YZQYH7M \
  | 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: 5f626a8c2fb99091817600398cc307fb3b3ba109c26cc049d9af4bcae800e14c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14989f607802c300029f1fe1251d66c3e8be008d07c2a33d9597176685f27d72",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2023-03-31T14:00:06Z",
    "title_canon_sha256": "cdb1ccee38229e30465abfe312aa5410ce0c722a938431fb1b6bb1dbb405a16e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.18072",
    "kind": "arxiv",
    "version": 1
  }
}