Pith Number

pith:WUPWVN3U

pith:2006:WUPWVN3UIOUAPNEXCVVIYVLZY5

not attested not anchored not stored refs pending

Deep HST Photometry of NGC 6388: Age and Horizontal Branch Luminosity

A. C. Layden (Bowling Green), A. V. Sweigart (NASA-GSFC), B. J. Pritzl (Macalester), H. A. Smith (Michigan State), K. Kinemuchi (Wyoming), M. Catelan (PUC-Chile), P. B. Stetson (DAO-NRC), R. M. Rich (UCLA)

arxiv:astro-ph/0609727 v1 · 2006-09-26 · 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{WUPWVN3UIOUAPNEXCVVIYVLZY5}

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	2026-05-18T04:28:57.580612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b51f6ab77443a807b497156a8c5579c745e3400b579b83486f51433bdbf709ed

Aliases

arxiv: astro-ph/0609727 · arxiv_version: astro-ph/0609727v1 · doi: 10.48550/arxiv.astro-ph/0609727 · pith_short_12: WUPWVN3UIOUA · pith_short_16: WUPWVN3UIOUAPNEX · pith_short_8: WUPWVN3U

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/WUPWVN3UIOUAPNEXCVVIYVLZY5 \
  | 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: b51f6ab77443a807b497156a8c5579c745e3400b579b83486f51433bdbf709ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19d08cbdeb5226b0937255e08513bee52549849f8e04745cac4dec81089534c0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-09-26T21:05:26Z",
    "title_canon_sha256": "374fc226ff22b60001dd91c4245e8ed5462af154cb7060b848b73bada7c992b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0609727",
    "kind": "arxiv",
    "version": 1
  }
}