Pith Number

pith:GITJN7JJ

pith:2015:GITJN7JJRA2IZDXKXIZUFQ45HE

not attested not anchored not stored refs pending

Variable stars and stellar populations in Andromeda XXI: II. Another merged galaxy satellite of M31?

A. Garofalo, E. Sani, F. Cusano, G. Clementini, I. Musella, L. Federici, M. Cignoni, M. Marconi, R. Merighi, R. Speziali, V. Ripepi

arxiv:1505.03538 v1 · 2015-05-13 · 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{GITJN7JJRA2IZDXKXIZUFQ45HE}

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	2026-05-18T02:09:53.810892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

322696fd2988348c8eeaba3342c39d39019c4724068e067246cf3bb026cc7cb3

Aliases

arxiv: 1505.03538 · arxiv_version: 1505.03538v1 · doi: 10.48550/arxiv.1505.03538 · pith_short_12: GITJN7JJRA2I · pith_short_16: GITJN7JJRA2IZDXK · pith_short_8: GITJN7JJ

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/GITJN7JJRA2IZDXKXIZUFQ45HE \
  | 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: 322696fd2988348c8eeaba3342c39d39019c4724068e067246cf3bb026cc7cb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2421f67545b1c4d30f0944e5be9e825af93c34064f3861f5476b25a9c421c416",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-05-13T20:04:24Z",
    "title_canon_sha256": "423e130f7a014d8435e8c8df4b31a5310140f41c235d98d2f16e8299ab6c0c0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03538",
    "kind": "arxiv",
    "version": 1
  }
}