Pith Number

pith:B75GBQS3

pith:2011:B75GBQS3JOYO4C6OHTPUMBWJC3

not attested not anchored not stored refs pending

The stellar populations of early-type galaxies -- II. The effects of environment and mass

Craig Harrison, Harald Kuntschner, Matthew Colless, Michael Pracy, Roberto De Propris, Warrick Couch

arxiv:1101.0568 v1 · 2011-01-03 · 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{B75GBQS3JOYO4C6OHTPUMBWJC3}

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	2026-05-18T02:04:13.804587Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ffa60c25b4bb0ee0bce3cdf4606c916f143bfe4c7a416bc7055f5ecd0b9b4f3

Aliases

arxiv: 1101.0568 · arxiv_version: 1101.0568v1 · doi: 10.48550/arxiv.1101.0568 · pith_short_12: B75GBQS3JOYO · pith_short_16: B75GBQS3JOYO4C6O · pith_short_8: B75GBQS3

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/B75GBQS3JOYO4C6OHTPUMBWJC3 \
  | 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: 0ffa60c25b4bb0ee0bce3cdf4606c916f143bfe4c7a416bc7055f5ecd0b9b4f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bd4f3148badab91a69b09612b607e9877b03e65a42b57127ed1dd5380c59bee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-01-03T17:46:48Z",
    "title_canon_sha256": "aa759d669fdffe4e0e5a5d33581d46e7cded1628570dc69ef0546fce2e128d49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.0568",
    "kind": "arxiv",
    "version": 1
  }
}