Pith Number

pith:ERKLUKE3

pith:2017:ERKLUKE3WO3SYPEUBVQZRJUZ4L

not attested not anchored not stored refs pending

How do spiral arm contrasts relate to bars, disk breaks and other fundamental galaxy properties?

2), (2) University Observatory Munich, (3) IBM Research Division, (4) Aix Marseille Univ, (5) Vassar College), Adrian Bittner (1, Albert Bosma (4), Bruce G. Elmegreen (3), Debra M. Elmegreen (5), Dimitri A. Gadotti (1), E. Athanassoula (4), Juan-Carlos Mu\~noz-Mateos (1) ((1) European Southern Observatory

arxiv:1706.09904 v1 · 2017-06-29 · 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{ERKLUKE3WO3SYPEUBVQZRJUZ4L}

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	2026-05-18T00:38:35.515475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2454ba289bb3b72c3c940d6198a699e2ea4a787cbfe706bb7a251a57aaafa6a4

Aliases

arxiv: 1706.09904 · arxiv_version: 1706.09904v1 · doi: 10.48550/arxiv.1706.09904 · pith_short_12: ERKLUKE3WO3S · pith_short_16: ERKLUKE3WO3SYPEU · pith_short_8: ERKLUKE3

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/ERKLUKE3WO3SYPEUBVQZRJUZ4L \
  | 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: 2454ba289bb3b72c3c940d6198a699e2ea4a787cbfe706bb7a251a57aaafa6a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecaf4f5b93885eaa7574627d516ed006e271eb95c411a033cfdfe66016b206be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-06-29T18:00:12Z",
    "title_canon_sha256": "f82c9ff4014233b676dc6be3e60f57f34c3f7bd2a3b361f0e4e57902b2de4d8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.09904",
    "kind": "arxiv",
    "version": 1
  }
}