Pith Number

pith:CMC5BNOP

pith:2019:CMC5BNOPQAOAMZHHF4MSTDVAKO

not attested not anchored not stored refs pending

'Scraggy' dark halos around bulge-less spiral galaxies

I. D. Karachentsev, V. E. Karachentseva

arxiv:1904.13155 v1 · 2019-04-30 · 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{CMC5BNOPQAOAMZHHF4MSTDVAKO}

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	2026-05-17T23:46:52.221174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1305d0b5cf801c0664e72f19298ea053b8bd396328e88b6b87608b5e8c88aa28

Aliases

arxiv: 1904.13155 · arxiv_version: 1904.13155v1 · doi: 10.48550/arxiv.1904.13155 · pith_short_12: CMC5BNOPQAOA · pith_short_16: CMC5BNOPQAOAMZHH · pith_short_8: CMC5BNOP

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/CMC5BNOPQAOAMZHHF4MSTDVAKO \
  | 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: 1305d0b5cf801c0664e72f19298ea053b8bd396328e88b6b87608b5e8c88aa28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15a55a66b9c930f9a85925b0769cf7df366fb2dda5e3c9c8b7bbef297f179ce3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-04-30T11:00:32Z",
    "title_canon_sha256": "ef0ac0c6bd18960b31876eff1daf36bba33af7dfec7943dc0636e4c6027aede6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.13155",
    "kind": "arxiv",
    "version": 1
  }
}