Pith Number

pith:NVFMPDD7

pith:2005:NVFMPDD7ELFJ4THDGDRYQFSK7I

not attested not anchored not stored refs pending

Hamiltonians with two degrees of freedom admitting a singlevalued general solution

Caroline Verhoeven, Micheline Musette, Robert Conte

arxiv:nlin/0507012 v1 · 2005-07-07 · 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{NVFMPDD7ELFJ4THDGDRYQFSK7I}

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	2026-05-18T00:32:55.933378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d4ac78c7f22ca9e4ce330e388164afa1115dcef92b6148f504f77e260135f7b

Aliases

arxiv: nlin/0507012 · arxiv_version: nlin/0507012v1 · doi: 10.48550/arxiv.nlin/0507012 · pith_short_12: NVFMPDD7ELFJ · pith_short_16: NVFMPDD7ELFJ4THD · pith_short_8: NVFMPDD7

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/NVFMPDD7ELFJ4THDGDRYQFSK7I \
  | 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: 6d4ac78c7f22ca9e4ce330e388164afa1115dcef92b6148f504f77e260135f7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1d4884df9c6887243415755eb98fee6946f72e9130c76efeed4aa5c50a768c1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "nlin.SI",
    "submitted_at": "2005-07-07T15:26:38Z",
    "title_canon_sha256": "eb1a449abc33882d6d061567efb138343c81b8aabe63027b1ddfebd69ef11d02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0507012",
    "kind": "arxiv",
    "version": 1
  }
}