Pith Number

pith:FAMHUMLT

pith:2019:FAMHUMLTOJAZW7UF4Q25TFZQXX

not attested not anchored not stored refs pending

Star formation at the edge of the Local Group: a rising star formation history in the isolated galaxy WLM

Alan W. McConnachie, Andrew A. Cole, Andrew E. Dolphin, Andrew Wetzel, Benjamin F. Williams, Daniel R. Weisz, Evan D. Skillman, James S. Bullock, Julianne J. Dalcanton, Mark Vogelsberger, Michael Boylan-Kolchin, Philip F. Hopkins, Ryan Leaman, Saundra M. Albers

arxiv:1909.04040 v1 · 2019-09-09 · 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{FAMHUMLTOJAZW7UF4Q25TFZQXX}

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	2026-07-05T00:17:14.413096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28187a317372419b7e85e435d99730bde39991e2be4aa2ce5797796fe7e00178

Aliases

arxiv: 1909.04040 · arxiv_version: 1909.04040v1 · doi: 10.48550/arxiv.1909.04040 · pith_short_12: FAMHUMLTOJAZ · pith_short_16: FAMHUMLTOJAZW7UF · pith_short_8: FAMHUMLT

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/FAMHUMLTOJAZW7UF4Q25TFZQXX \
  | 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: 28187a317372419b7e85e435d99730bde39991e2be4aa2ce5797796fe7e00178

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f09f0e1dafc01f06980ed783f9173ded6e709922ed85ee1cb8024363c24cb186",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-09-09T18:00:01Z",
    "title_canon_sha256": "4c2b18db246d00fbab0f1f812eee5c9ad388e954b516138296abe9212bec0de4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.04040",
    "kind": "arxiv",
    "version": 1
  }
}