Pith Number

pith:XF2EP2M7

pith:2016:XF2EP2M776QILB6TNWEDQCDE5I

not attested not anchored not stored refs pending

Variable stars in the bulge globular cluster NGC 6401

A. Arellano Ferro, C. Snodgrass, D.M. Bramich, K. Horne, M. Dominik, M. Hundertmark, N. Kains, R. Figuera Jaimes, R. Street, Y. Tsapras

arxiv:1610.09911 v1 · 2016-10-31 · astro-ph.SR · 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{XF2EP2M776QILB6TNWEDQCDE5I}

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	2026-05-18T01:00:46.914130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b97447e99fffa08587d36d88380864ea3165cfd6f6a8399ab219701cd1e0778e

Aliases

arxiv: 1610.09911 · arxiv_version: 1610.09911v1 · doi: 10.48550/arxiv.1610.09911 · pith_short_12: XF2EP2M776QI · pith_short_16: XF2EP2M776QILB6T · pith_short_8: XF2EP2M7

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/XF2EP2M776QILB6TNWEDQCDE5I \
  | 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: b97447e99fffa08587d36d88380864ea3165cfd6f6a8399ab219701cd1e0778e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ba1503a429c8b5dc5cf92842b2419f3c63e2d7f32c5f87c793e7db84c36de0e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-10-31T13:25:38Z",
    "title_canon_sha256": "385a5c4edfb6e8f70b51f44019842fa89786f2f35358731261e2b49c290dceea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.09911",
    "kind": "arxiv",
    "version": 1
  }
}