Pith Number

pith:TP7JCHTG

pith:2009:TP7JCHTGGMDNWKFSBRL3RYA7SJ

not attested not anchored not stored refs pending

Deep Optical Photometry of Six Fields in the Andromeda Galaxy

Allen V. Sweigart (GSFC), Alvio Renzini (INAF), Don A. VandenBerg (UVic), Ed Smith, Henry C. Ferguson (STScI), Jason S. Kalirai (STScI), Puragra Guhathakurta (UCO/Lick), Randy A. Kimble (GSFC), R. Michael Rich (UCLA), Thomas M. Brown

arxiv:0908.0476 v1 · 2009-08-04 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TP7JCHTGGMDNWKFSBRL3RYA7SJ}

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	2026-05-18T02:12:44.784829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bfe911e663306db28b20c57b8e01f926a5d1107ffe5a29129a163c79712cab4

Aliases

arxiv: 0908.0476 · arxiv_version: 0908.0476v1 · doi: 10.48550/arxiv.0908.0476 · pith_short_12: TP7JCHTGGMDN · pith_short_16: TP7JCHTGGMDNWKFS · pith_short_8: TP7JCHTG

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/TP7JCHTGGMDNWKFSBRL3RYA7SJ \
  | 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: 9bfe911e663306db28b20c57b8e01f926a5d1107ffe5a29129a163c79712cab4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d248c00758e9f3a6d31fc6f117629fa19e0031a251f426f4ffcc11801d64755f",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-08-04T15:39:42Z",
    "title_canon_sha256": "9d237430665df9ec4f8e9496c38e86162ed5a7dd11d45f1e460f51bd9532a4e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0476",
    "kind": "arxiv",
    "version": 1
  }
}