Pith Number

pith:ZSJBSL5J

pith:2015:ZSJBSL5JNM57OLRXN4PIU7YSQW

not attested not anchored not stored refs pending

HST/ACS Direct Ages of the Dwarf Elliptical Galaxies NGC 147 and NGC 185

A. Dolphin, A. Grocholski, D. Weisz, M. Geha, P. Guhathakurta, R. P. van der Marel

arxiv:1503.06526 v1 · 2015-03-23 · 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{ZSJBSL5JNM57OLRXN4PIU7YSQW}

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	2026-05-18T01:31:03.115346Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc92192fa96b3bf72e376f1e8a7f1285841c398734d31a1923a2019d32da045f

Aliases

arxiv: 1503.06526 · arxiv_version: 1503.06526v1 · doi: 10.48550/arxiv.1503.06526 · pith_short_12: ZSJBSL5JNM57 · pith_short_16: ZSJBSL5JNM57OLRX · pith_short_8: ZSJBSL5J

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/ZSJBSL5JNM57OLRXN4PIU7YSQW \
  | 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: cc92192fa96b3bf72e376f1e8a7f1285841c398734d31a1923a2019d32da045f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a5b847fef5d912ab390e7546b2b629d7b06b6940433e7b1aebf53516e4f953a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-03-23T04:26:29Z",
    "title_canon_sha256": "7ea0152d1a71648a905102cc35b234dbb82f8606c7fc3b35741344b618e42c7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.06526",
    "kind": "arxiv",
    "version": 1
  }
}