Pith Number

pith:R4FY5PG2

pith:2018:R4FY5PG2ESZ7VJUOW2GMSWZIVO

not attested not anchored not stored refs pending

Galaxy Nurseries: Crowdsourced analysis of slitless spectroscopic data

Alaina Henry, Anita Zanella, Chris Lintott, Claudia Scarlata, Harry Teplitz, Hugh Dickinson, Ivano Baronchelli, John Phillips, Lucy Fortson, Marc Rafelski, Matthew Malkan, Micaela Bagley, Nimish Hathi, Sophia Dai, Vihang Mehta

arxiv:1807.01687 v1 · 2018-07-04 · 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{R4FY5PG2ESZ7VJUOW2GMSWZIVO}

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	2026-05-18T00:11:29.201113Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f0b8ebcda24b3faa68eb68cc95b28abb382ef5d1fc7bdb86e13be7fa2400677

Aliases

arxiv: 1807.01687 · arxiv_version: 1807.01687v1 · doi: 10.48550/arxiv.1807.01687 · pith_short_12: R4FY5PG2ESZ7 · pith_short_16: R4FY5PG2ESZ7VJUO · pith_short_8: R4FY5PG2

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/R4FY5PG2ESZ7VJUOW2GMSWZIVO \
  | 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: 8f0b8ebcda24b3faa68eb68cc95b28abb382ef5d1fc7bdb86e13be7fa2400677

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe1976adf1df6fec864a981132553a668dd8aebf79a8d40da20d914f93145d31",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-04T17:09:42Z",
    "title_canon_sha256": "f2b7092c946608638e1a5204cd28affd5aad98175b34c3366b12144dbdae999a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01687",
    "kind": "arxiv",
    "version": 1
  }
}