Pith Number

pith:PERWB6IZ

pith:2022:PERWB6IZWHSRXVVZKT62SB3BMX

not attested not anchored not stored refs pending

Melnikov's persistence for completely degenerate Hamiltonian systems

Jiayin Du, Shuguan Ji, Yong Li

arxiv:2301.00206 v3 · 2022-12-31 · 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{PERWB6IZWHSRXVVZKT62SB3BMX}

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	2026-07-05T09:09:16.611137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

792360f919b1e51bd6b954fda9076165d6a120420a63582eff4873f42d9e5f39

Aliases

arxiv: 2301.00206 · arxiv_version: 2301.00206v3 · doi: 10.48550/arxiv.2301.00206 · pith_short_12: PERWB6IZWHSR · pith_short_16: PERWB6IZWHSRXVVZ · pith_short_8: PERWB6IZ

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/PERWB6IZWHSRXVVZKT62SB3BMX \
  | 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: 792360f919b1e51bd6b954fda9076165d6a120420a63582eff4873f42d9e5f39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2580c0460ba91d60b34ae1835915a015f6c5c6094f9d7bcbe299cba4a1d9498",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2022-12-31T14:02:27Z",
    "title_canon_sha256": "cb03ae9d54f2160c28ca70d7fb551bc50a808af7f4dc25dba0074f0fbdfbf707"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.00206",
    "kind": "arxiv",
    "version": 3
  }
}