Pith Number

pith:6BL5522Q

pith:2014:6BL5522Q6UB77NMMBCGSSHMK3Y

not attested not anchored not stored refs pending

The Formation of Spiral Galaxies: Adiabatic Compression with Young's Algorithm and the Relation of Dark Matter Haloes to Their Primordial Antecedents

Harley Katz, J. A. Sellwood, Stacy S. McGaugh, W. J. G. de Blok

arxiv:1401.2622 v1 · 2014-01-12 · astro-ph.CO · 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{6BL5522Q6UB77NMMBCGSSHMK3Y}

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	2026-05-18T02:51:01.037182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f057deeb50f503ffb58c088d291d8ade0c48b6e5f4f7e82c9233064ab3ea98b2

Aliases

arxiv: 1401.2622 · arxiv_version: 1401.2622v1 · doi: 10.48550/arxiv.1401.2622 · pith_short_12: 6BL5522Q6UB7 · pith_short_16: 6BL5522Q6UB77NMM · pith_short_8: 6BL5522Q

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/6BL5522Q6UB77NMMBCGSSHMK3Y \
  | 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: f057deeb50f503ffb58c088d291d8ade0c48b6e5f4f7e82c9233064ab3ea98b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5580c8df6343d9aff7cdb9b8826f8207dd592990743c86c81d6fcad9d84bc0d0",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-01-12T13:08:24Z",
    "title_canon_sha256": "450e9ffa547eed9559b069cbe2540e6cbfd47863ddb840a3c43c3435d8eb3372"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.2622",
    "kind": "arxiv",
    "version": 1
  }
}