Pith Number

pith:VIENGZ2I

pith:2008:VIENGZ2ISAWKA7IQHFJKAW6OHP

not attested not anchored not stored refs pending

Extending the baseline: Spitzer Mid-Infrared Photometry of Globular Cluster Systems in the Centaurus A and Sombrero Galaxies

Duncan A. Forbes, Lee R. Spitler, Michael A. Beasley

arxiv:0806.4390 v1 · 2008-06-26 · 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{VIENGZ2ISAWKA7IQHFJKAW6OHP}

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	2026-05-18T04:37:23.006052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa08d36748902ca07d103952a05bce3be5fbe57556d4d8552c8a8639f343643f

Aliases

arxiv: 0806.4390 · arxiv_version: 0806.4390v1 · doi: 10.48550/arxiv.0806.4390 · pith_short_12: VIENGZ2ISAWK · pith_short_16: VIENGZ2ISAWKA7IQ · pith_short_8: VIENGZ2I

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/VIENGZ2ISAWKA7IQHFJKAW6OHP \
  | 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: aa08d36748902ca07d103952a05bce3be5fbe57556d4d8552c8a8639f343643f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffa79976112da8ea263742cfdfb2b7a56374661162ecade4693d2164d2e14388",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-06-26T20:13:56Z",
    "title_canon_sha256": "97ce397d4e9beea0df6a8822f6881bfee1a33415c15c6702fd386f095d630acb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.4390",
    "kind": "arxiv",
    "version": 1
  }
}