Pith Number

pith:6J522ALF

pith:2004:6J522ALFACAHT6BWNPKUZW6POH

not attested not anchored not stored refs pending

A recent rebuilding of most spirals ?

2), 3), F. Hammer (1), H. Flores (1), X.Z. Zheng (1, Y. Liang (1

arxiv:astro-ph/0411700 v1 · 2004-11-25 · 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{6J522ALFACAHT6BWNPKUZW6POH}

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	2026-05-18T01:27:16.366205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f27bad0165008079f8366bd54cdbcf71e60fe90225d737ce91564c85977ed538

Aliases

arxiv: astro-ph/0411700 · arxiv_version: astro-ph/0411700v1 · doi: 10.48550/arxiv.astro-ph/0411700 · pith_short_12: 6J522ALFACAH · pith_short_16: 6J522ALFACAHT6BW · pith_short_8: 6J522ALF

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/6J522ALFACAHT6BWNPKUZW6POH \
  | 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: f27bad0165008079f8366bd54cdbcf71e60fe90225d737ce91564c85977ed538

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba227f457d6280f14cb2dbbdd90627395c2afcca365663c9468e3651d5e8962a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-11-25T15:36:36Z",
    "title_canon_sha256": "7a95ce8a9ee7c264e0f34f8e337a4232c0374da24ace10dfd381312a09747157"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0411700",
    "kind": "arxiv",
    "version": 1
  }
}