Pith Number

pith:SPYDAJLX

pith:2010:SPYDAJLX7REDTX6NVG72E4D2YO

not attested not anchored not stored refs pending

The central dark matter content of early-type galaxies: scaling relations and connections with star formation histories

Aaron J. Romanowsky, Crescenzo Tortora, Nicola R. Napolitano

arxiv:1003.1716 v1 · 2010-03-08 · 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{SPYDAJLX7REDTX6NVG72E4D2YO}

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	2026-05-18T02:08:36.461531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93f0302577fc4839dfcda9bfa2707ac3b10bd143d70628b41c21de22ec3e0606

Aliases

arxiv: 1003.1716 · arxiv_version: 1003.1716v1 · doi: 10.48550/arxiv.1003.1716 · pith_short_12: SPYDAJLX7RED · pith_short_16: SPYDAJLX7REDTX6N · pith_short_8: SPYDAJLX

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/SPYDAJLX7REDTX6NVG72E4D2YO \
  | 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: 93f0302577fc4839dfcda9bfa2707ac3b10bd143d70628b41c21de22ec3e0606

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93d5e4fd1ed9c22e934d1f9a1686ed7b9472d510da34178b7ad00b3516daf6f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-03-08T21:00:01Z",
    "title_canon_sha256": "e327eb37140e3915f19351515b3fcd8f64943deddb2444ebdee737a32c2a34d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.1716",
    "kind": "arxiv",
    "version": 1
  }
}