Pith Number

pith:CYJKQQWS

pith:2007:CYJKQQWSVR5RVHFE3QF653UL7D

not attested not anchored not stored refs pending

Two novel classes of solvable many-body problems of goldfish type with constraints

David Gomez-Ullate, Francesco Calogero

arxiv:nlin/0701046 v1 · 2007-01-22 · 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{CYJKQQWSVR5RVHFE3QF653UL7D}

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	2026-05-18T04:24:35.604306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1612a842d2ac7b1a9ca4dc0beeee8bf8dffb3cf69362f95b63f22ab507b79477

Aliases

arxiv: nlin/0701046 · arxiv_version: nlin/0701046v1 · doi: 10.48550/arxiv.nlin/0701046 · pith_short_12: CYJKQQWSVR5R · pith_short_16: CYJKQQWSVR5RVHFE · pith_short_8: CYJKQQWS

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/CYJKQQWSVR5RVHFE3QF653UL7D \
  | 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: 1612a842d2ac7b1a9ca4dc0beeee8bf8dffb3cf69362f95b63f22ab507b79477

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e4f0ab503c06a6e37fc5d5e7410f1be41517f2fd3b76dc906170f4a3af4e49e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "nlin.SI",
    "submitted_at": "2007-01-22T13:43:49Z",
    "title_canon_sha256": "1de226157c46917c48ae0336c6748ec96d9cdca29c60b9e151cdd0064668f00c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0701046",
    "kind": "arxiv",
    "version": 1
  }
}