Pith Number

pith:ILLYUKSR

pith:2008:ILLYUKSROT6SIAAA6HM54SWX44

not attested not anchored not stored refs pending

Invariant manifolds as building blocks for the formation of spiral arms and rings in barred galaxies

(2) I.E.E.C. & MA1, (3) D.E.I.M, C. Garcia-Gomez (3) ((1) Laboratoire d'Astrophysique de Marseille, E. Athanassoula (1), J.J. Masdemont (2), M. Romero-Gomez (1), OAMP, UPC, URV)

arxiv:0801.3412 v1 · 2008-01-22 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ILLYUKSROT6SIAAA6HM54SWX44}

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	2026-05-18T02:16:01.667522Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42d78a2a5174fd240000f1d9de4ad7e70d397571329f9a3dc47539d8eb884b90

Aliases

arxiv: 0801.3412 · arxiv_version: 0801.3412v1 · doi: 10.48550/arxiv.0801.3412 · pith_short_12: ILLYUKSROT6S · pith_short_16: ILLYUKSROT6SIAAA · pith_short_8: ILLYUKSR

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/ILLYUKSROT6SIAAA6HM54SWX44 \
  | 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: 42d78a2a5174fd240000f1d9de4ad7e70d397571329f9a3dc47539d8eb884b90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6018221f9dedfd1656ff3bdd0ccc0488afcb69a5377c90c2a029f9ec9c490254",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-22T16:39:18Z",
    "title_canon_sha256": "b0a0318d56872761cb8501f41143224d8f18e5d006ce80c73b7d9dea30fe1879"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.3412",
    "kind": "arxiv",
    "version": 1
  }
}