Pith Number

pith:7T4VVQHB

pith:2022:7T4VVQHBTOTRYN5J6WHVS2HMI3

not attested not anchored not stored refs pending

Lagrangian multiforms on Lie groups and non-commuting flows

Duncan Sleigh, Frank Nijhoff, Mats Vermeeren, Vincent Caudrelier

arxiv:2204.09663 v2 · 2022-04-20 · nlin.SI · 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{7T4VVQHBTOTRYN5J6WHVS2HMI3}

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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.

Cited by

1 paper in Pith

Discrete Lagrangian Multiforms for ABS Equations I: Quad Equations

Receipt and verification

First computed	2026-07-05T10:53:07.225986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fcf95ac0e19ba71c37a9f58f5968ec46f23893444ca4665db63c3612be5c9933

Aliases

arxiv: 2204.09663 · arxiv_version: 2204.09663v2 · doi: 10.48550/arxiv.2204.09663 · pith_short_12: 7T4VVQHBTOTR · pith_short_16: 7T4VVQHBTOTRYN5J · pith_short_8: 7T4VVQHB

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/7T4VVQHBTOTRYN5J6WHVS2HMI3 \
  | 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: fcf95ac0e19ba71c37a9f58f5968ec46f23893444ca4665db63c3612be5c9933

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15a5e24fd99585f758ab68e724f7d00b515922f366e983d00e2dea07b744fa7a",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2022-04-20T17:55:08Z",
    "title_canon_sha256": "8647719dcb431d873c48cdb68f45b623608e7bc1426998bf7a8f7983fd5a55d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.09663",
    "kind": "arxiv",
    "version": 2
  }
}