Pith Number

pith:B6OQ75RB

pith:2008:B6OQ75RBQF3XGEEHNPYS5R5ORU

not attested not anchored not stored refs pending

Metallicity in the Galactic Center: The Quintuplet cluster

D. John Hillier, Don F. Figer, Francisco Najarro, Rolf P. Kudritzki, T. R. Geballe

arxiv:0809.3185 v1 · 2008-09-18 · 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{B6OQ75RBQF3XGEEHNPYS5R5ORU}

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	2026-05-18T04:29:26.620586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f9d0ff62181777310876bf12ec7ae8d1b612282c70879ed4434443a6124c9c5

Aliases

arxiv: 0809.3185 · arxiv_version: 0809.3185v1 · doi: 10.48550/arxiv.0809.3185 · pith_short_12: B6OQ75RBQF3X · pith_short_16: B6OQ75RBQF3XGEEH · pith_short_8: B6OQ75RB

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/B6OQ75RBQF3XGEEHNPYS5R5ORU \
  | 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: 0f9d0ff62181777310876bf12ec7ae8d1b612282c70879ed4434443a6124c9c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8651755180908a9db58528a5efc4ae071dbed13778a0606ed8dadef958581686",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-18T15:25:26Z",
    "title_canon_sha256": "fed526ce12e23aed0cc539d6df4f08e35d4f3641d19b150bcbf8eafe61d255a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.3185",
    "kind": "arxiv",
    "version": 1
  }
}