Pith Number

pith:QOU5KOJA

pith:2020:QOU5KOJACN66XNYNMF5BIIPTVT

not attested not anchored not stored refs pending

The bursty star formation history of the Fornax dwarf spheroidal galaxy revealed with the HST

C. Gallart, E. J. Bernard, M. Monelli, S. Cassisi, T. K. Fritz, T. Ruiz-Lara, V. Rusakov

arxiv:2002.09714 v2 · 2020-02-22 · 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{QOU5KOJACN66XNYNMF5BIIPTVT}

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	2026-07-05T02:05:39.192836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83a9d53920137debb70d617a1421f3ace40e862ec4a9de871789d3e2032b03f9

Aliases

arxiv: 2002.09714 · arxiv_version: 2002.09714v2 · doi: 10.48550/arxiv.2002.09714 · pith_short_12: QOU5KOJACN66 · pith_short_16: QOU5KOJACN66XNYN · pith_short_8: QOU5KOJA

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/QOU5KOJACN66XNYNMF5BIIPTVT \
  | 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: 83a9d53920137debb70d617a1421f3ace40e862ec4a9de871789d3e2032b03f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab211b228bd8b852d4e59e374a434fb39c2f6a4f69a579e85b610f48f71ca460",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-02-22T14:52:16Z",
    "title_canon_sha256": "96a9e7dab626382c57a77521288e553bfacef3931525ce88e3beb2340c6b234e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.09714",
    "kind": "arxiv",
    "version": 2
  }
}