Pith Number

pith:P22TXD5T

pith:2022:P22TXD5TAKJCWY6RZJLK3JMQ45

not attested not anchored not stored refs pending

Preserving Lagrangian structure in data-driven reduced-order modeling of large-scale dynamical systems

Boris Kramer, Harsh Sharma

arxiv:2203.06361 v3 · 2022-03-12 · 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{P22TXD5TAKJCWY6RZJLK3JMQ45}

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	2026-07-05T08:04:10.640704Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7eb53b8fb302922b63d1ca56ada590e75467aa5e7f9cab31566d88b545f3f684

Aliases

arxiv: 2203.06361 · arxiv_version: 2203.06361v3 · doi: 10.48550/arxiv.2203.06361 · pith_short_12: P22TXD5TAKJC · pith_short_16: P22TXD5TAKJCWY6R · pith_short_8: P22TXD5T

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/P22TXD5TAKJCWY6RZJLK3JMQ45 \
  | 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: 7eb53b8fb302922b63d1ca56ada590e75467aa5e7f9cab31566d88b545f3f684

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a83ff309701eec15af4c6b6218d1541a37f0029e8285ae1d111820f2750ca520",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2022-03-12T06:56:24Z",
    "title_canon_sha256": "c59f2d897a1dfbe57a102e2f20a0530722468c954d53fccadf86819c41c8c65c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.06361",
    "kind": "arxiv",
    "version": 3
  }
}