Pith Number

pith:BEPMGQ4F

pith:2010:BEPMGQ4FXT335EMKSORFU2X5R3

not attested not anchored not stored refs pending

Coupling constant metamorphosis as an integrability-preserving transformation for general finite-dimensional dynamical systems and ODEs

A. Sergyeyev

arxiv:1008.1575 v2 · 2010-08-09 · nlin.SI · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BEPMGQ4FXT335EMKSORFU2X5R3}

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	2026-05-18T00:34:10.908918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

091ec34385bcf7be918a93a25a6afd8ee6c8f50be592bcb7ef02d3eaf51a317f

Aliases

arxiv: 1008.1575 · arxiv_version: 1008.1575v2 · doi: 10.48550/arxiv.1008.1575 · pith_short_12: BEPMGQ4FXT33 · pith_short_16: BEPMGQ4FXT335EMK · pith_short_8: BEPMGQ4F

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/BEPMGQ4FXT335EMKSORFU2X5R3 \
  | 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: 091ec34385bcf7be918a93a25a6afd8ee6c8f50be592bcb7ef02d3eaf51a317f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "870d3270057bfb6cec6cc59cf62a74dfcea117a890444b6977dcb70f49b09e64",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2010-08-09T19:58:17Z",
    "title_canon_sha256": "9f3a30870fa8536826bc2c9810e4e5a496a222d214f5b0a5793b7f18620b6a7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.1575",
    "kind": "arxiv",
    "version": 2
  }
}