Pith Number

pith:4RYNSHLS

pith:2017:4RYNSHLSV3P2QG5J62BWX6SBJO

not attested not anchored not stored refs pending

Index theory for heteroclinic orbits of Hamiltonian systems

Alessandro Portaluri, Xijun Hu

arxiv:1703.03908 v1 · 2017-03-11 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4RYNSHLSV3P2QG5J62BWX6SBJO}

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	2026-05-18T00:48:52.790290Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e470d91d72aedfa81ba9f6836bfa414bb4e18b072c8910661ef3dc853b025f07

Aliases

arxiv: 1703.03908 · arxiv_version: 1703.03908v1 · doi: 10.48550/arxiv.1703.03908 · pith_short_12: 4RYNSHLSV3P2 · pith_short_16: 4RYNSHLSV3P2QG5J · pith_short_8: 4RYNSHLS

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/4RYNSHLSV3P2QG5J62BWX6SBJO \
  | 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: e470d91d72aedfa81ba9f6836bfa414bb4e18b072c8910661ef3dc853b025f07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7965fdd2135cd501c252a7df71fe93ba7281128a7c4e7f88b90a5be4d0890309",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2017-03-11T04:54:28Z",
    "title_canon_sha256": "4cb322960898814e74da4887b8428e3b655f54b9c85f2055e7945328a6ee6b08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.03908",
    "kind": "arxiv",
    "version": 1
  }
}