Pith Number

pith:S4BV5IHL

pith:2001:S4BV5IHLEVY3GJ3JGTKVKNQ5HS

not attested not anchored not stored refs pending

The Bologna Key Project on Omega Cen

(2) Bologna University, 3), (3) ESO), E. Pancino (2, F. R. Ferraro (1), M. Bellazzini (1) ((1) Bologna Observatory

arxiv:astro-ph/0112016 v1 · 2001-12-02 · 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{S4BV5IHLEVY3GJ3JGTKVKNQ5HS}

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	2026-07-04T14:11:40.809598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97035ea0eb2571b3276934d555361d3caf03e985d13ca5cf69b3fcc7455ec747

Aliases

arxiv: astro-ph/0112016 · arxiv_version: astro-ph/0112016v1 · doi: 10.48550/arxiv.astro-ph/0112016 · pith_short_12: S4BV5IHLEVY3 · pith_short_16: S4BV5IHLEVY3GJ3J · pith_short_8: S4BV5IHL

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/S4BV5IHLEVY3GJ3JGTKVKNQ5HS \
  | 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: 97035ea0eb2571b3276934d555361d3caf03e985d13ca5cf69b3fcc7455ec747

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a295b59bdf274920be8cfd897de0b6b71df07ab59489e115b290209a0dde01d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-12-02T16:15:30Z",
    "title_canon_sha256": "7348eed5e49a431a1a2236d0736bca8eefd7bbb64f2dd69e3f538eb45d994708"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0112016",
    "kind": "arxiv",
    "version": 1
  }
}