Pith Number

pith:UP3FDP7T

pith:1999:UP3FDP7TFXPV7BKY4A3FI2HDHH

not attested not anchored not stored refs pending

The Spectroscopic Age of 47 Tuc

Brad K. Gibson (Colorado), Darren S. Madgwick (ANU), Gary S. Da Costa (ANU), John E. Norris (ANU), Lewis A. Jones (UNSW)

arxiv:astro-ph/9906095 v1 · 1999-06-04 · 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{UP3FDP7TFXPV7BKY4A3FI2HDHH}

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.

Cited by

2 papers in Pith

A Colour-colour Fingerprint Links the UV Upturn in Early-type Galaxies to Second-generation Stars from Dissolved Globular Clusters

Chemical hints of Population III stars from silicon abundances in massive galaxies

Receipt and verification

First computed	2026-07-04T16:11:17.474211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3f651bff32ddf5f8558e0365468e339c60e389517a8c52dae3d3437c8886b91

Aliases

arxiv: astro-ph/9906095 · arxiv_version: astro-ph/9906095v1 · doi: 10.48550/arxiv.astro-ph/9906095 · pith_short_12: UP3FDP7TFXPV · pith_short_16: UP3FDP7TFXPV7BKY · pith_short_8: UP3FDP7T

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/UP3FDP7TFXPV7BKY4A3FI2HDHH \
  | 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: a3f651bff32ddf5f8558e0365468e339c60e389517a8c52dae3d3437c8886b91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1dd7b33cd2152e6229637f6557e12aa1991a28dbdefb8b8572f9d185568879e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-06-04T20:39:14Z",
    "title_canon_sha256": "25c3694a08df4306b89c84149f435e8b2c776718929974e09d5f427c5e2c337a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9906095",
    "kind": "arxiv",
    "version": 1
  }
}