Pith Number

pith:PI2TGLOC

pith:2015:PI2TGLOCTCMZZCOWMHPAJIXLAA

not attested not anchored not stored refs pending

Variable Stars in Local Group Galaxies. I: Tracing the Early Chemical Enrichment and Radial Gradients in the Sculptor dSph with RR Lyrae Stars

A. Udalski, C. E. Mart\'inez-V\'azquez, C. Gallart, E. J. Bernard, G. Bono, G. Fiorentino, G. Iannicola, I. Ferraro, M. Monelli, P. B. Stetson

arxiv:1508.06942 v1 · 2015-08-27 · astro-ph.GA · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PI2TGLOCTCMZZCOWMHPAJIXLAA}

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	2026-05-18T01:34:37.252009Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a35332dc298999c89d661de04a2eb00383d1926eaeadbe107e0f697d1018d08

Aliases

arxiv: 1508.06942 · arxiv_version: 1508.06942v1 · doi: 10.48550/arxiv.1508.06942 · pith_short_12: PI2TGLOCTCMZ · pith_short_16: PI2TGLOCTCMZZCOW · pith_short_8: PI2TGLOC

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/PI2TGLOCTCMZZCOWMHPAJIXLAA \
  | 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: 7a35332dc298999c89d661de04a2eb00383d1926eaeadbe107e0f697d1018d08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddc374ba14bdfb59696bc22ae133edd8a71a174123c8847e9d07a511814a2d8a",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-08-27T17:18:55Z",
    "title_canon_sha256": "b6ce87dfe42ad819fea4fa0d3c13a832a28a274374276117a13bf572def9821d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.06942",
    "kind": "arxiv",
    "version": 1
  }
}