Pith Number

pith:XFGUXACG

pith:2002:XFGUXACGJ2JLFDHKQ7W3I5FTNU

not attested not anchored not stored refs pending

The effects of spiral arms on the multi-phase ISM

Aake Nordlund, Anvar Shukurov, Axel Brandenburg, Boris Gudiksen, Graeme R. Sarson

arxiv:astro-ph/0212260 v1 · 2002-12-11 · 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{XFGUXACGJ2JLFDHKQ7W3I5FTNU}

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	2026-07-04T16:31:24.177356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b94d4b80464e92b28cea87edb474b36d274d4c3de43d562243c7b6699afb762f

Aliases

arxiv: astro-ph/0212260 · arxiv_version: astro-ph/0212260v1 · doi: 10.48550/arxiv.astro-ph/0212260 · pith_short_12: XFGUXACGJ2JL · pith_short_16: XFGUXACGJ2JLFDHK · pith_short_8: XFGUXACG

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/XFGUXACGJ2JLFDHKQ7W3I5FTNU \
  | 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: b94d4b80464e92b28cea87edb474b36d274d4c3de43d562243c7b6699afb762f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0409b67aa60554eaedb1eb4cdb6ea7676a0bb9bbab12113ee11c5eeb79bab987",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-12-11T13:35:40Z",
    "title_canon_sha256": "87291a2a22d5b9f07842a37e187bd49d4cbe936de9fb648d134f3496bc502ff8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0212260",
    "kind": "arxiv",
    "version": 1
  }
}