Pith Number

pith:NVO7JBZD

pith:2012:NVO7JBZD2FPYA7KOPBY53ZBUDJ

not attested not anchored not stored refs pending

The Star Formation & Chemical Evolution History of the Sculptor Dwarf Spheroidal Galaxy

A. Saha, B. Lemasle, E. Starkenburg, E. Tolstoy, G. Battaglia, K. Olsen, M. J. Irwin, T. J. L. de Boer, V. Hill

arxiv:1201.2408 v1 · 2012-01-11 · 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{NVO7JBZD2FPYA7KOPBY53ZBUDJ}

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	2026-05-18T01:58:52.583459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d5df48723d15f807d4e7871dde4341a7107e1b8551e197808b936b1ca695ce4

Aliases

arxiv: 1201.2408 · arxiv_version: 1201.2408v1 · doi: 10.48550/arxiv.1201.2408 · pith_short_12: NVO7JBZD2FPY · pith_short_16: NVO7JBZD2FPYA7KO · pith_short_8: NVO7JBZD

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/NVO7JBZD2FPYA7KOPBY53ZBUDJ \
  | 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: 6d5df48723d15f807d4e7871dde4341a7107e1b8551e197808b936b1ca695ce4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "955e106ee54ffa2e4887009b3fe4f0fe0ca449aba428dc1a78df857dcd33c39b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-11T21:00:02Z",
    "title_canon_sha256": "ec4192b52f284ae044e2f7e59a1fdb89ae509b87324b64b02ea141a2ecd5cbe3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2408",
    "kind": "arxiv",
    "version": 1
  }
}