Pith Number

pith:4ZAF5JVQ

pith:2026:4ZAF5JVQTFIA2UGHESTQBDE4ST

not attested not anchored not stored refs pending

Some geometric perspectives on Contact Hamiltonian Dynamics

Javier P\'erez \'Alvarez

arxiv:2606.28265 v1 · 2026-06-26 · 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{4ZAF5JVQTFIA2UGHESTQBDE4ST}

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	2026-06-29T01:15:10.790068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6405ea6b099500d50c724a7008c9c94d69514ea4cba03ed21e98e0cbbc36fe1

Aliases

arxiv: 2606.28265 · arxiv_version: 2606.28265v1 · doi: 10.48550/arxiv.2606.28265 · pith_short_12: 4ZAF5JVQTFIA · pith_short_16: 4ZAF5JVQTFIA2UGH · pith_short_8: 4ZAF5JVQ

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/4ZAF5JVQTFIA2UGHESTQBDE4ST \
  | 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: e6405ea6b099500d50c724a7008c9c94d69514ea4cba03ed21e98e0cbbc36fe1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da90e61df4415d1da741753df57a0aaa562cdc9187a4168081f036d606fb0dd1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2026-06-26T16:56:09Z",
    "title_canon_sha256": "c28f8f0cadaca2bf5f1b669eed98e1be0bebf921043c95742d38804028055779"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.28265",
    "kind": "arxiv",
    "version": 1
  }
}