Pith Number

pith:ELI2XZ45

pith:2009:ELI2XZ45CKQ4DUR6GVXEXS3JIT

not attested not anchored not stored refs pending

Swinging Atwood's Machine: Experimental and Theoretical Studies

Carles Sim\'o, Jacques-Arthur Weil, Jean-Pierre Ramis, Jos\'e-Philippe P\'erez, Olivier Pujol, Sergi Simon

arxiv:0912.5168 v1 · 2009-12-28 · nlin.CD · 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{ELI2XZ45CKQ4DUR6GVXEXS3JIT}

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	2026-05-18T02:27:41.396933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22d1abe79d12a1c1d23e356e4bcb6944e11aca404cd07f5870021fe01471cbaa

Aliases

arxiv: 0912.5168 · arxiv_version: 0912.5168v1 · doi: 10.48550/arxiv.0912.5168 · pith_short_12: ELI2XZ45CKQ4 · pith_short_16: ELI2XZ45CKQ4DUR6 · pith_short_8: ELI2XZ45

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/ELI2XZ45CKQ4DUR6GVXEXS3JIT \
  | 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: 22d1abe79d12a1c1d23e356e4bcb6944e11aca404cd07f5870021fe01471cbaa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9860bd192d6ef55bc786833d3bb21235e673630abed2d185cbe1ea6d356f9e8c",
    "cross_cats_sorted": [
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2009-12-28T13:26:52Z",
    "title_canon_sha256": "7c3d5aca89ca2149b777c8865b26694bd2198a129a408ed8a8bce2c40459fa84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.5168",
    "kind": "arxiv",
    "version": 1
  }
}