Pith Number

pith:RZ23H5S2

pith:2019:RZ23H5S2WU4UDI5TYA7WPQEUT2

not attested not anchored not stored refs pending

Infinitesimal symmetries in Contact Hamiltonian systems

Manuel de Le\'on, Manuel Lainz Valc\'azar

arxiv:1909.07892 v2 · 2019-09-17 · math-ph · math.DG · math.DS · math.MP · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RZ23H5S2WU4UDI5TYA7WPQEUT2}

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	2026-07-05T00:56:32.521717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e75b3f65ab53941a3b3c03f67c0949e86bf13d75e1aeecd4ed4a5d908d49464

Aliases

arxiv: 1909.07892 · arxiv_version: 1909.07892v2 · doi: 10.48550/arxiv.1909.07892 · pith_short_12: RZ23H5S2WU4U · pith_short_16: RZ23H5S2WU4UDI5T · pith_short_8: RZ23H5S2

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/RZ23H5S2WU4UDI5TYA7WPQEUT2 \
  | 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: 8e75b3f65ab53941a3b3c03f67c0949e86bf13d75e1aeecd4ed4a5d908d49464

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e9145641e3cfd769a55f436db06aff362ed22bc774d2014b2fb0de25f4bc3a3",
    "cross_cats_sorted": [
      "math.DG",
      "math.DS",
      "math.MP",
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2019-09-17T15:35:43Z",
    "title_canon_sha256": "afb011f2f2143d855fab5fc35cd22572c2991ae4a96f96e1c98c0519cefbc3a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.07892",
    "kind": "arxiv",
    "version": 2
  }
}