Pith Number

pith:AVZHKTZU

pith:2011:AVZHKTZU2LF6HOOGREEMAHZZS3

not attested not anchored not stored refs pending

Infinitely many periodic solutions for second order Hamiltonian systems

Chungen Liu, Qingye Zhang

arxiv:1106.0360 v1 · 2011-06-02 · 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{AVZHKTZU2LF6HOOGREEMAHZZS3}

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	2026-05-18T04:20:50.574445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0572754f34d2cbe3b9c68908c01f3996ef536e8a64df243a206e026b5bc05b28

Aliases

arxiv: 1106.0360 · arxiv_version: 1106.0360v1 · doi: 10.48550/arxiv.1106.0360 · pith_short_12: AVZHKTZU2LF6 · pith_short_16: AVZHKTZU2LF6HOOG · pith_short_8: AVZHKTZU

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/AVZHKTZU2LF6HOOGREEMAHZZS3 \
  | 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: 0572754f34d2cbe3b9c68908c01f3996ef536e8a64df243a206e026b5bc05b28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9b9a2ee5ea46e895df12a22f3ce7171600ff11f8ae1c52ada965cfe51c36a18",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2011-06-02T03:03:17Z",
    "title_canon_sha256": "3d4a169ccaf5e601dd5a8aceab3ea3d5e6895c72f0e0ed30a00fda1ee34e654f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.0360",
    "kind": "arxiv",
    "version": 1
  }
}