Pith Number

pith:BXFOYZWW

pith:2009:BXFOYZWWBFWLEPPDSPT7EFZXIB

not attested not anchored not stored refs pending

Stellar populations in the centres of brightest cluster galaxies

A.E. Sansom (UCLan), IAC), I.K. Soechting (Oxford), P. Sanchez-Blazquez (UCLan, S.I. Loubser (UCLan, UWC)

arxiv:0906.0287 v1 · 2009-06-01 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BXFOYZWWBFWLEPPDSPT7EFZXIB}

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	2026-05-18T02:13:30.086343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0dcaec66d6096cb23de393e7f2173740538ad34d704b8fb94ab6ea56c72a8598

Aliases

arxiv: 0906.0287 · arxiv_version: 0906.0287v1 · doi: 10.48550/arxiv.0906.0287 · pith_short_12: BXFOYZWWBFWL · pith_short_16: BXFOYZWWBFWLEPPD · pith_short_8: BXFOYZWW

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/BXFOYZWWBFWLEPPDSPT7EFZXIB \
  | 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: 0dcaec66d6096cb23de393e7f2173740538ad34d704b8fb94ab6ea56c72a8598

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f27638bb6c54189ef935c978c80824c019688b4c7d233824817f74546a4c5862",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-06-01T13:52:11Z",
    "title_canon_sha256": "5d86e7e169ec70777bf90b2badb563a44eb074866a8217585377b6981b0281f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.0287",
    "kind": "arxiv",
    "version": 1
  }
}