Pith Number

pith:UNWI6R2A

pith:2017:UNWI6R2AVSPMMGQJAVMH37LOLT

not attested not anchored not stored refs pending

Variational principle for contact Hamiltonian systems and its applications

Jun Yan, Kaizhi Wang, Lin Wang

arxiv:1702.04451 v2 · 2017-02-15 · math.DS · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UNWI6R2AVSPMMGQJAVMH37LOLT}

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	2026-05-18T00:24:31.509607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a36c8f4740ac9ec61a0905587dfd6e5cc576f36d86b17deb678d40daf7e707a6

Aliases

arxiv: 1702.04451 · arxiv_version: 1702.04451v2 · doi: 10.48550/arxiv.1702.04451 · pith_short_12: UNWI6R2AVSPM · pith_short_16: UNWI6R2AVSPMMGQJ · pith_short_8: UNWI6R2A

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/UNWI6R2AVSPMMGQJAVMH37LOLT \
  | 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: a36c8f4740ac9ec61a0905587dfd6e5cc576f36d86b17deb678d40daf7e707a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2afaea2ce63f35492b3040cc440d1397bdc903bcbade8b9121cafc4df7f2cc87",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2017-02-15T03:04:26Z",
    "title_canon_sha256": "7c37a21706c44f092af89b1eb15fa25ce8b39d3ebc008f7785392491fcfcc062"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.04451",
    "kind": "arxiv",
    "version": 2
  }
}