Pith Number

pith:X6VRC63E

pith:2015:X6VRC63EHBT3ALG2I5B3U7DNSP

not attested not anchored not stored refs pending

On bi-Hamiltonian formulation of the perturbed Kepler problem

A. V. Tsiganov, Yu. A. Grigoryev

arxiv:1504.02211 v1 · 2015-04-09 · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X6VRC63EHBT3ALG2I5B3U7DNSP}

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	2026-05-18T02:19:15.756020Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfab117b643867b02cda4743ba7c6d93e76ead809aab6b8f3ec8d9edeaa668a7

Aliases

arxiv: 1504.02211 · arxiv_version: 1504.02211v1 · doi: 10.48550/arxiv.1504.02211 · pith_short_12: X6VRC63EHBT3 · pith_short_16: X6VRC63EHBT3ALG2 · pith_short_8: X6VRC63E

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/X6VRC63EHBT3ALG2I5B3U7DNSP \
  | 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: bfab117b643867b02cda4743ba7c6d93e76ead809aab6b8f3ec8d9edeaa668a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44750380a1c34235e90e41e645bdc9226d2d5d283497f142293e6f5c10caf459",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2015-04-09T07:33:01Z",
    "title_canon_sha256": "cc0b5a7a026e15351b5318255f83e8331eb7383f97fea3b59c50b7ed115ba1a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.02211",
    "kind": "arxiv",
    "version": 1
  }
}