Pith Number

pith:ETGFSU4S

pith:2011:ETGFSU4S32WF3DMLUCVOBLMWSG

not attested not anchored not stored refs pending

Efficient integration of the variational equations of multi-dimensional Hamiltonian systems: Application to the Fermi-Pasta-Ulam lattice

Charalampos Skokos, Enrico Gerlach, Siegfried Eggl

arxiv:1104.3127 v1 · 2011-04-15 · nlin.CD · math.DS

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ETGFSU4S32WF3DMLUCVOBLMWSG}

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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.

Receipt and verification

First computed	2026-05-18T00:54:42.094156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24cc595392deac5d8d8ba0aae0ad9691a25d3a13e761f8204dd0ac1c6c1d106f

Aliases

arxiv: 1104.3127 · arxiv_version: 1104.3127v1 · doi: 10.48550/arxiv.1104.3127 · pith_short_12: ETGFSU4S32WF · pith_short_16: ETGFSU4S32WF3DML · pith_short_8: ETGFSU4S

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/ETGFSU4S32WF3DMLUCVOBLMWSG \
  | 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: 24cc595392deac5d8d8ba0aae0ad9691a25d3a13e761f8204dd0ac1c6c1d106f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27233c9bf481da0403620d4dbafaa0ee41cf241d50329f0fdc9d770feb4b514b",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2011-04-15T19:14:39Z",
    "title_canon_sha256": "bccceb28b7763fdb7e5336b3644e595c17d92ee2c2e4ebd82216e2b475443ffa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.3127",
    "kind": "arxiv",
    "version": 1
  }
}