Pith Number

pith:HL7QZZIS

pith:2008:HL7QZZISJK26JRVOYECEEWPTFO

not attested not anchored not stored refs pending

The ACS LCID Project: RR Lyrae stars as tracers of old population gradients in the isolated dwarf spheroidal galaxy Tucana

Andrew A. Cole, Antonio Aparicio, Carme Gallart, Edouard J. Bernard, Eline Tolstoy, Evan D. Skillman, Igor Drozdovsky, Mario Mateo, Matteo Monelli, Peter B. Stetson, Santi Cassisi, Sebastian L. Hidalgo

arxiv:0803.1178 v1 · 2008-03-07 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HL7QZZISJK26JRVOYECEEWPTFO}

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	2026-07-04T17:09:45.656312Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3aff0ce5124ab5e4c6aec1044259f32b996bcd30a5066266b01480abd4afae60

Aliases

arxiv: 0803.1178 · arxiv_version: 0803.1178v1 · doi: 10.48550/arxiv.0803.1178 · pith_short_12: HL7QZZISJK26 · pith_short_16: HL7QZZISJK26JRVO · pith_short_8: HL7QZZIS

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/HL7QZZISJK26JRVOYECEEWPTFO \
  | 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: 3aff0ce5124ab5e4c6aec1044259f32b996bcd30a5066266b01480abd4afae60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4977c6eb75fbfa78922950267e68834f137e62689c4b849ae39ed92433e11168",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-03-07T20:52:53Z",
    "title_canon_sha256": "951a0ad71712d8db898e7a70959d6d18b4313d2c0c33fa281027c9e3f0fd6fe2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.1178",
    "kind": "arxiv",
    "version": 1
  }
}