Pith Number

pith:Q6G6PQ2C

pith:1999:Q6G6PQ2C73NEXENVOVRSUHUGFH

not attested not anchored not stored refs pending

HST - WFPC2 photometry of the globular cluster ngc 288: binary systems, blue stragglers and very blue stars

M. Bellazzini, M. Messineo

arxiv:astro-ph/9910522 v1 · 1999-10-28 · 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{Q6G6PQ2C73NEXENVOVRSUHUGFH}

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	2026-05-18T01:21:49.799293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

878de7c342feda4b91b575632a1e8629ccd1149392367aa94cf88e6cf97dcd0b

Aliases

arxiv: astro-ph/9910522 · arxiv_version: astro-ph/9910522v1 · doi: 10.48550/arxiv.astro-ph/9910522 · pith_short_12: Q6G6PQ2C73NE · pith_short_16: Q6G6PQ2C73NEXENV · pith_short_8: Q6G6PQ2C

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/Q6G6PQ2C73NEXENVOVRSUHUGFH \
  | 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: 878de7c342feda4b91b575632a1e8629ccd1149392367aa94cf88e6cf97dcd0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d28439edb1f747efb6208f352bee9fee0d7deaa8a807ee2a6d77d814bdf8696a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-10-28T16:21:35Z",
    "title_canon_sha256": "c9cbc5a05c117ee1c1da8eb7e5f0f0361cb0c51a04c0c19f74dab797d91e1912"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9910522",
    "kind": "arxiv",
    "version": 1
  }
}