Pith Number

pith:PU6DY3XP

pith:2010:PU6DY3XP2SGA4SVQYG5N2GHYMN

not attested not anchored not stored refs pending

The second and third parameters of the Horizontal Branch in Globular Clusters

(2)INAF-Osservatorio Astronomico di Bologna, 3), (3) Excellence Cluster Universe), Angela Bragaglia (2), Eugenio Carretta (2), Raffaele G. Gratton (1), Sara Lucatello (1, Valentina D'Orazi (1) ((1) INAF-Osservatorio Astronomico di Padova

arxiv:1004.3862 v2 · 2010-04-22 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PU6DY3XP2SGA4SVQYG5N2GHYMN}

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	2026-05-18T02:07:55.304339Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d3c3c6eefd48c0e4ab0c1badd18f863526c7a8e534dead3e0da4671bcdd3a63

Aliases

arxiv: 1004.3862 · arxiv_version: 1004.3862v2 · doi: 10.48550/arxiv.1004.3862 · pith_short_12: PU6DY3XP2SGA · pith_short_16: PU6DY3XP2SGA4SVQ · pith_short_8: PU6DY3XP

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/PU6DY3XP2SGA4SVQYG5N2GHYMN \
  | 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: 7d3c3c6eefd48c0e4ab0c1badd18f863526c7a8e534dead3e0da4671bcdd3a63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b4c8044ca81cdf59474771a191386ada5a82167edd1802adda800fc924b9081",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-04-22T08:42:15Z",
    "title_canon_sha256": "f9d80001941235152d5cedda20bf0ad99dccec03dee2c0cc7de484cbc7ad7cc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.3862",
    "kind": "arxiv",
    "version": 2
  }
}