Pith Number

pith:YYXJMX7J

pith:1995:YYXJMX7JSSCVXXGM4E2R4ETUBC

not attested not anchored not stored refs pending

The Globular Clusters in M87: A Bimodal Colour Distribution

Basilio X. Santiago, Rebecca A.W. Elson

arxiv:astro-ph/9506116 v1 · 1995-06-22 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YYXJMX7JSSCVXXGM4E2R4ETUBC}

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	2026-05-18T01:40:23.106849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c62e965fe994855bdccce1351e12740884490265dc066eadd7d197aa9b5a67d2

Aliases

arxiv: astro-ph/9506116 · arxiv_version: astro-ph/9506116v1 · doi: 10.48550/arxiv.astro-ph/9506116 · pith_short_12: YYXJMX7JSSCV · pith_short_16: YYXJMX7JSSCVXXGM · pith_short_8: YYXJMX7J

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/YYXJMX7JSSCVXXGM4E2R4ETUBC \
  | 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: c62e965fe994855bdccce1351e12740884490265dc066eadd7d197aa9b5a67d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7052596d53c79a90ebc0de8e6dd68d473c11115038bd2579cf24ded31e1a671f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-06-22T15:33:43Z",
    "title_canon_sha256": "b8fb1ced371a8fbaac1730085065f2d587db57fde8ff5ef36acc7bc45d711b4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9506116",
    "kind": "arxiv",
    "version": 1
  }
}