Pith Number

pith:ZFEPESSV

pith:2017:ZFEPESSV77H36IA4UAMCPDUY4C

not attested not anchored not stored refs pending

Multiple Populations in NGC 1851: Abundance Variations and UV Photometric Synthesis in the Washington and HST/WFC3 Systems

Douglas Geisler, Jeffrey D. Cummings, Sandro Villanova

arxiv:1704.02349 v1 · 2017-04-07 · astro-ph.SR · 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{ZFEPESSV77H36IA4UAMCPDUY4C}

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	2026-05-18T00:46:45.884645Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c948f24a55ffcfbf201ca018278e98e0a06149bc5a7e4977ca848ba46a4a5997

Aliases

arxiv: 1704.02349 · arxiv_version: 1704.02349v1 · doi: 10.48550/arxiv.1704.02349 · pith_short_12: ZFEPESSV77H3 · pith_short_16: ZFEPESSV77H36IA4 · pith_short_8: ZFEPESSV

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/ZFEPESSV77H36IA4UAMCPDUY4C \
  | 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: c948f24a55ffcfbf201ca018278e98e0a06149bc5a7e4977ca848ba46a4a5997

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "223e242d5dc3e29dad129cf4f1267ce385dc05513a9397b6e653883808b14164",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-04-07T19:01:02Z",
    "title_canon_sha256": "18e4e7d1eba61489b328cab0de2ad8bb827964a1da3f951bf9e6938065481aec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.02349",
    "kind": "arxiv",
    "version": 1
  }
}