Pith Number

pith:Z7XPBOW3

pith:2009:Z7XPBOW3G7SA7ZDECPTQPCT2W4

not attested not anchored not stored refs pending

Probing the 2-D kinematic structure of early-type galaxies out to 3 effective radii

Aaron J. Romanowsky, Duncan A. Forbes, Jay Strader, Jean P. Brodie, J. Trevor Mendel, Lee Spitler, Max Spolaor, Robert N. Proctor

arxiv:0905.4424 v1 · 2009-05-27 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z7XPBOW3G7SA7ZDECPTQPCT2W4}

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	2026-05-18T02:34:46.097701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfeef0badb37e40fe46413e7078a7ab73f24169bc1ec8d53294fc964d7bb8a74

Aliases

arxiv: 0905.4424 · arxiv_version: 0905.4424v1 · doi: 10.48550/arxiv.0905.4424 · pith_short_12: Z7XPBOW3G7SA · pith_short_16: Z7XPBOW3G7SA7ZDE · pith_short_8: Z7XPBOW3

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/Z7XPBOW3G7SA7ZDECPTQPCT2W4 \
  | 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: cfeef0badb37e40fe46413e7078a7ab73f24169bc1ec8d53294fc964d7bb8a74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57ba46008edffa2b3fcf697355417c70db618c79458fa7431b75976a58b5e0d8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-05-27T13:51:08Z",
    "title_canon_sha256": "39654826cfd6e7e6ab1e645fcd017c54501b03b0168f80eb0c1b0b20ac3a4f26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.4424",
    "kind": "arxiv",
    "version": 1
  }
}