Pith Number

pith:LPHSPO77

pith:2026:LPHSPO77GLTGSRJP3HJDFWW2LA

not attested not anchored not stored refs pending

From protogalaxy through thick and thin: Why did the Milky Way evolve in three kinematic phases?

Andrew Wetzel, Claude-Andr\'e Faucher-Gigu\`ere, Francisco J. Mercado, James S. Bullock, Jonathan Stern, Jorge Moreno, Michael Boylan-Kolchin, Olti Myrtaj, Pratik J. Gandhi, Robert Feldmann, Vedant Chandra

arxiv:2605.22806 v1 · 2026-05-21 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LPHSPO77GLTGSRJP3HJDFWW2LA}

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	2026-05-22T02:04:55.662719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bcf27bbff32e669452fd9d232dada580f7d5334e647e88ce16ed81df0dd1775

Aliases

arxiv: 2605.22806 · arxiv_version: 2605.22806v1 · doi: 10.48550/arxiv.2605.22806 · pith_short_12: LPHSPO77GLTG · pith_short_16: LPHSPO77GLTGSRJP · pith_short_8: LPHSPO77

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/LPHSPO77GLTGSRJP3HJDFWW2LA \
  | 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: 5bcf27bbff32e669452fd9d232dada580f7d5334e647e88ce16ed81df0dd1775

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a24f804c543d7578b45fca4d45ae2f21b2eadeceb0c663106f9acdb465e6ad73",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-05-21T17:56:09Z",
    "title_canon_sha256": "86ba0d5320abdf05a82d36da91bff2f95894c5ab60998723a680a6130f83732f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.22806",
    "kind": "arxiv",
    "version": 1
  }
}