Pith Number

pith:YBSOCYPO

pith:2018:YBSOCYPO7HVQ62PWPMIP3IJISN

not attested not anchored not stored refs pending

CLUES about M33: the reversed radial stellar age gradient in the outskirts of Triangulum galaxy

Alexander Knebe, Arianna Di Cintio, Chris Brook, Ivan Minchev, Noam I. Libeskind, Robert Mostoghiu

arxiv:1808.03286 v1 · 2018-08-09 · 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{YBSOCYPO7HVQ62PWPMIP3IJISN}

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	2026-05-18T00:05:55.763821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c064e161eef9eb0f69f67b10fda1289348feed626bf8375992969937e44b92eb

Aliases

arxiv: 1808.03286 · arxiv_version: 1808.03286v1 · doi: 10.48550/arxiv.1808.03286 · pith_short_12: YBSOCYPO7HVQ · pith_short_16: YBSOCYPO7HVQ62PW · pith_short_8: YBSOCYPO

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/YBSOCYPO7HVQ62PWPMIP3IJISN \
  | 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: c064e161eef9eb0f69f67b10fda1289348feed626bf8375992969937e44b92eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12adebf9b588e7113133cd34bc9ea22c39eacd4be0891bc68d5faa6e721bd2b3",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-08-09T18:00:42Z",
    "title_canon_sha256": "23d04fc78182f5b6a1a4eafb203f9af15da6c9e84edbce7a5f1e8f6ee1497690"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.03286",
    "kind": "arxiv",
    "version": 1
  }
}