Pith Number

pith:WOKQD4D5

pith:2021:WOKQD4D54GWZ2UX6S5RB2TPBUA

not attested not anchored not stored refs pending

Absence of obvious tidal tails around the globular cluster NGC 6397

Eduardo Vitral, Pierre Boldrini

arxiv:2104.03635 v2 · 2021-04-08 · 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{WOKQD4D54GWZ2UX6S5RB2TPBUA}

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	2026-07-05T03:10:06.066571Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b39501f07de1ad9d52fe97621d4de1a036b7d22d304510e17d9e420f1a024f56

Aliases

arxiv: 2104.03635 · arxiv_version: 2104.03635v2 · doi: 10.48550/arxiv.2104.03635 · pith_short_12: WOKQD4D54GWZ · pith_short_16: WOKQD4D54GWZ2UX6 · pith_short_8: WOKQD4D5

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/WOKQD4D54GWZ2UX6S5RB2TPBUA \
  | 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: b39501f07de1ad9d52fe97621d4de1a036b7d22d304510e17d9e420f1a024f56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c506f7990f34ae5962fbf9249d820f6128aaf5a9ad10f9ee19c63199a573786",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-04-08T09:41:35Z",
    "title_canon_sha256": "a3fda70e932419ae303ed2fc05a99cba5762eaacaebf27946548110c91d449fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.03635",
    "kind": "arxiv",
    "version": 2
  }
}