Pith Number

pith:3PEZK5TA

pith:2009:3PEZK5TAP3WW7J2IGP2MIMGBE7

not attested not anchored not stored refs pending

Turning the Tides on the Ultra-Faint Dwarf Spheroidal Galaxies: Coma Berenices and Ursa Major II

Beth Willman (Haverford College), Marla Geha (Yale), Ricardo R. Munoz (Yale)

arxiv:0910.3946 v1 · 2009-10-20 · 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{3PEZK5TAP3WW7J2IGP2MIMGBE7}

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	2026-05-18T02:11:13.593284Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbc99576607eed6fa74833f4c430c127d0601bba4dd773cb2830ef7ca8445755

Aliases

arxiv: 0910.3946 · arxiv_version: 0910.3946v1 · doi: 10.48550/arxiv.0910.3946 · pith_short_12: 3PEZK5TAP3WW · pith_short_16: 3PEZK5TAP3WW7J2I · pith_short_8: 3PEZK5TA

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/3PEZK5TAP3WW7J2IGP2MIMGBE7 \
  | 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: dbc99576607eed6fa74833f4c430c127d0601bba4dd773cb2830ef7ca8445755

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e1ea4a5c59687b12c754906e37a01e98dbe11ae687d1a2344d7e32ee9877731",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-10-20T20:00:04Z",
    "title_canon_sha256": "a1bb4cfd692e13708c8442b508db89633ba88cae3eb0c63cbfb4b1550327af9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.3946",
    "kind": "arxiv",
    "version": 1
  }
}