Pith Number

pith:F3JLTRWD

pith:2008:F3JLTRWDOYPTLFR4OSHXVGEOR2

not attested not anchored not stored refs pending

The Ellipticities of Cluster Early-type Galaxies from z~1 to z~0: No Evolution in the Overall Distribution of Bulge-to-Disk Ratios

A. van der Wel, B. P. Holden, D. D. Kelson, G. D. Illingworth, H. Ford, J. P. Blakeslee, M. Franx, M. Postman, R. Demarco, S. Mei

arxiv:0811.1986 v3 · 2008-11-12 · 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{F3JLTRWDOYPTLFR4OSHXVGEOR2}

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	2026-05-18T04:29:25.172707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ed2b9c6c3761f35963c748f7a988e8e9deeba7708e66f0bc965413df1723807

Aliases

arxiv: 0811.1986 · arxiv_version: 0811.1986v3 · doi: 10.48550/arxiv.0811.1986 · pith_short_12: F3JLTRWDOYPT · pith_short_16: F3JLTRWDOYPTLFR4 · pith_short_8: F3JLTRWD

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/F3JLTRWDOYPTLFR4OSHXVGEOR2 \
  | 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: 2ed2b9c6c3761f35963c748f7a988e8e9deeba7708e66f0bc965413df1723807

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3983a1254f1e760466958d2bf4c5f17e0d089797cceabb7a0a51c85cf6301f98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-12T21:10:26Z",
    "title_canon_sha256": "ebb7e15111da2f598795e4a1b1ccf2eff4f6926c9a10eec802f72c8a276a03c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.1986",
    "kind": "arxiv",
    "version": 3
  }
}