Pith Number

pith:RWQ47TJ4

pith:2019:RWQ47TJ4HH6F5PHHXVUHQGYSZA

not attested not anchored not stored refs pending

Astro2020 Science White Paper: Local Dwarf Galaxy Archaeology

Alexander P. Ji (Carnegie Observatories), Anna Frebel (MIT), Evan Kirby (Caltech), Gina Duggan (Caltech), Ian Roederer (University of Michigan), Joshua Simon (Carnegie Observatories), Marla Geha (Yale), Matthew Hosek Jr (UCLA), Rachel Beaton (Princeton University), Sukanya Chakrabarti (RIT), Ting Li (Fermilab)

arxiv:1903.09275 v1 · 2019-03-22 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RWQ47TJ4HH6F5PHHXVUHQGYSZA}

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	2026-05-17T23:50:40.135461Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8da1cfcd3c39fc5ebce7bd68781b12c8111bb1229f429720fc17887738da7291

Aliases

arxiv: 1903.09275 · arxiv_version: 1903.09275v1 · doi: 10.48550/arxiv.1903.09275 · pith_short_12: RWQ47TJ4HH6F · pith_short_16: RWQ47TJ4HH6F5PHH · pith_short_8: RWQ47TJ4

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/RWQ47TJ4HH6F5PHHXVUHQGYSZA \
  | 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: 8da1cfcd3c39fc5ebce7bd68781b12c8111bb1229f429720fc17887738da7291

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a0351d2ceec39bc5ff9be05b90ba86bbbadb64f79134c95a3486380e4696c1e",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-03-22T00:08:03Z",
    "title_canon_sha256": "781e172697f09a1f5b3af9d0fa5dbb39b7608a4f65f24d15fa7ca31c9ecad299"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.09275",
    "kind": "arxiv",
    "version": 1
  }
}