Pith Number

pith:UNI354TX

pith:2019:UNI354TX4T7FNDBL5H4SY6LX6G

not attested not anchored not stored refs pending

The star formation history of the Sculptor dwarf spheroidal galaxy

Alistair R. Walker, Antonio Aparicio, Frank Valdes, Giampaolo Piotto, Margherita Bettinelli, Santi Cassisi, Sebasti\'an L. Hidalgo

arxiv:1906.07042 v1 · 2019-06-17 · 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{UNI354TX4T7FNDBL5H4SY6LX6G}

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	2026-05-17T23:42:18.443813Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a351bef277e4fe568c2be9f92c7977f1977c64a8fbe040793ed600addcc15404

Aliases

arxiv: 1906.07042 · arxiv_version: 1906.07042v1 · doi: 10.48550/arxiv.1906.07042 · pith_short_12: UNI354TX4T7F · pith_short_16: UNI354TX4T7FNDBL · pith_short_8: UNI354TX

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/UNI354TX4T7FNDBL5H4SY6LX6G \
  | 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: a351bef277e4fe568c2be9f92c7977f1977c64a8fbe040793ed600addcc15404

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79c7220d036c3bd56b6b2048f9171c4310e314ab89ca4da9b5cc73cc85ac2bd1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-06-17T14:06:34Z",
    "title_canon_sha256": "085e46fd592df036a46bafa05769468d7b74c6522645241c812ece3ffe7363ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.07042",
    "kind": "arxiv",
    "version": 1
  }
}