Pith Number

pith:7BPKC7VV

pith:2009:7BPKC7VVYKPGOWNWFKJHDTEYBI

not attested not anchored not stored refs pending

Stromgren photometry of Galactic Globular Clusters. II Metallicity distribution of red giants in Omega Centauri

A. Calamida (1), A.M. Piersimoni (5), A. Pietrinferni (5), A.R. Walker (14) ((1) ESO (2) Univ. Roma Tor Vergata (3) HIA-NRC (4) Univ. Lancashire (5) INAF/OATe (6) INAF/OAR (7) INAF/OAC (8) Univ. Pisa (9) Aarhus Univ. (10) IAC (11) OAT (12) Univ. Concepcion (13) Astrophys. In. Potsdam (14) CTIO), C.E. Corsi (6), F. Caputo (6), F. Grundahl (9), F. Primas (1), G. Bono (2), I. Ferraro (6), J. Storm (13), L.M. Freyhammer (4), L. Pulone (6), M. Castellani (6), M. Dall'Ora (7), M. Hilker (1), M. Monelli (10), M. Nonino (11), M. Romaniello (1), N. Patat (1), P.B. Stetson (3), P.G. Prada Moroni (8), R. Buonanno (2), S. Cassisi (5), S. Degl'Innocenti (8), T. Richtler (12)

arxiv:0909.4661 v1 · 2009-09-25 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7BPKC7VVYKPGOWNWFKJHDTEYBI}

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	2026-05-18T02:11:37.748058Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f85ea17eb5c29e6759b62a9271cc980a1d2ffbac087b7c3c51c24dc2bb058be2

Aliases

arxiv: 0909.4661 · arxiv_version: 0909.4661v1 · doi: 10.48550/arxiv.0909.4661 · pith_short_12: 7BPKC7VVYKPG · pith_short_16: 7BPKC7VVYKPGOWNW · pith_short_8: 7BPKC7VV

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/7BPKC7VVYKPGOWNWFKJHDTEYBI \
  | 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: f85ea17eb5c29e6759b62a9271cc980a1d2ffbac087b7c3c51c24dc2bb058be2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81513e25e073fa04804e840db3f1121e4cfc53a7935d93180f6d8bc6ba25516d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-25T13:37:35Z",
    "title_canon_sha256": "7261adff6bb2527026334aaca66126c7cc7b94a0764b401dc717a21b41c300ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.4661",
    "kind": "arxiv",
    "version": 1
  }
}