Pith Number

pith:SIRXAPXY

pith:2010:SIRXAPXY3J54HJGZYBCTOEMPMH

not attested not anchored not stored refs pending

The Environmental Dependence of the Luminosity-Size Relation for Galaxies

Preethi B. Nair, Roberto G. Abraham, Sidney van den Bergh

arxiv:1004.1107 v2 · 2010-04-07 · 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{SIRXAPXY3J54HJGZYBCTOEMPMH}

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	2026-05-18T02:08:08.433378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9223703ef8da7bc3a4d9c04537118f61c5d1e91fddfb4be1cfff9ecfb81ffde6

Aliases

arxiv: 1004.1107 · arxiv_version: 1004.1107v2 · doi: 10.48550/arxiv.1004.1107 · pith_short_12: SIRXAPXY3J54 · pith_short_16: SIRXAPXY3J54HJGZ · pith_short_8: SIRXAPXY

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/SIRXAPXY3J54HJGZYBCTOEMPMH \
  | 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: 9223703ef8da7bc3a4d9c04537118f61c5d1e91fddfb4be1cfff9ecfb81ffde6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad1120c346541c275a2f1c6e34924a9cd27664ab68634e0aee7a3cdd62e8844d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-04-07T14:59:01Z",
    "title_canon_sha256": "538cb05176124f9816b9526986dd39e9e3a8dfafc4313c20b841e23b80928699"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.1107",
    "kind": "arxiv",
    "version": 2
  }
}