Pith Number

pith:7SJ4RBYX

pith:2009:7SJ4RBYXGMFU2DTFXXOEPCKGOU

not attested not anchored not stored refs pending

A Blue Tilt in the Globular Cluster System of the Milky Way-like Galaxy NGC 5170

Duncan Forbes, Jay Strader, Jean Brodie, Jeremy Bailin, Lee Spitler, Soeren Larsen, William Harris

arxiv:0911.4743 v1 · 2009-11-24 · astro-ph.CO · 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{7SJ4RBYXGMFU2DTFXXOEPCKGOU}

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	2026-05-18T02:10:36.913403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc93c88717330b4d0e65bddc478946752aa0b3a366d255aa8b5748a4eee43b5b

Aliases

arxiv: 0911.4743 · arxiv_version: 0911.4743v1 · doi: 10.48550/arxiv.0911.4743 · pith_short_12: 7SJ4RBYXGMFU · pith_short_16: 7SJ4RBYXGMFU2DTF · pith_short_8: 7SJ4RBYX

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/7SJ4RBYXGMFU2DTFXXOEPCKGOU \
  | 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: fc93c88717330b4d0e65bddc478946752aa0b3a366d255aa8b5748a4eee43b5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3806d595e59db3c86c39e2f985cbdca2d1b35bdc70a437bec81342927844038",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-11-24T23:56:02Z",
    "title_canon_sha256": "62d261af0e465aecd9cf19d85b7b4cd7fe3f38037e38734841075ff6edd2feda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.4743",
    "kind": "arxiv",
    "version": 1
  }
}