Pith Number

pith:NO7QQ4RY

pith:2005:NO7QQ4RY6OM3XSP2I24VI6GACZ

not attested not anchored not stored refs pending

Discovery of a stellar system in the background of 47 Tucanae

E. Pancino (INAF - Bologna Observatory), F.R. Ferraro (Bologna University), M. Bellazzini

arxiv:astro-ph/0502192 v1 · 2005-02-09 · 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{NO7QQ4RY6OM3XSP2I24VI6GACZ}

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	2026-05-18T01:40:34.462670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bbf087238f399bbc9fa46b95478c0167203660b1f5a806755ca92f4e797835e

Aliases

arxiv: astro-ph/0502192 · arxiv_version: astro-ph/0502192v1 · doi: 10.48550/arxiv.astro-ph/0502192 · pith_short_12: NO7QQ4RY6OM3 · pith_short_16: NO7QQ4RY6OM3XSP2 · pith_short_8: NO7QQ4RY

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/NO7QQ4RY6OM3XSP2I24VI6GACZ \
  | 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: 6bbf087238f399bbc9fa46b95478c0167203660b1f5a806755ca92f4e797835e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c45228aea3b70fc5ae6fbb791b8321ef649ed5395d4ab988b593ecfaa5888f4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-02-09T15:41:13Z",
    "title_canon_sha256": "bf89598b89f6156782a8e659603c6396565df4a3626a847132d62c3a245225f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0502192",
    "kind": "arxiv",
    "version": 1
  }
}