Pith Number

pith:5N2BJ3FT

pith:2015:5N2BJ3FTPO2CKFJ5RG2UZVKDJ5

not attested not anchored not stored refs pending

Radial distributions of arm-gas offsets as an observational test of spiral theories

Fumi Egusa, Junichi Baba, Kana Morokuma-Matsui

arxiv:1505.02881 v1 · 2015-05-12 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5N2BJ3FTPO2CKFJ5RG2UZVKDJ5}

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	2026-05-18T01:36:53.580807Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb7414ecb37bb425153d89b54cd5434f6158bc58328f597d028cd6e5aabd53f2

Aliases

arxiv: 1505.02881 · arxiv_version: 1505.02881v1 · doi: 10.48550/arxiv.1505.02881 · pith_short_12: 5N2BJ3FTPO2C · pith_short_16: 5N2BJ3FTPO2CKFJ5 · pith_short_8: 5N2BJ3FT

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/5N2BJ3FTPO2CKFJ5RG2UZVKDJ5 \
  | 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: eb7414ecb37bb425153d89b54cd5434f6158bc58328f597d028cd6e5aabd53f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d717a1248267c0fd9755bc1784b81d662c5052e598d0d81e694847550425897f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-05-12T05:55:29Z",
    "title_canon_sha256": "d2ccfa61348a5b5dff1391938725f86f3d9c13eac281fd57558a9592d3abf0c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.02881",
    "kind": "arxiv",
    "version": 1
  }
}