Pith Number

pith:KWL3PUGD

pith:2013:KWL3PUGDB6Z4LSM567AFPJ4FOH

not attested not anchored not stored refs pending

Purely dry mergers do not explain the observed evolution of massive early-type galaxies since z = 1

(2) University of Bologna), Alessandro Sonnenfeld (1), Carlo Nipoti (2), Santa Barbara, Tommaso Treu (1) ((1) University of California

arxiv:1310.3280 v2 · 2013-10-11 · 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{KWL3PUGDB6Z4LSM567AFPJ4FOH}

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	2026-05-18T01:47:06.285782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5597b7d0c30fb3c5c99df7c057a78571c9004263aed7b91c32a3f21f78426190

Aliases

arxiv: 1310.3280 · arxiv_version: 1310.3280v2 · doi: 10.48550/arxiv.1310.3280 · pith_short_12: KWL3PUGDB6Z4 · pith_short_16: KWL3PUGDB6Z4LSM5 · pith_short_8: KWL3PUGD

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/KWL3PUGDB6Z4LSM567AFPJ4FOH \
  | 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: 5597b7d0c30fb3c5c99df7c057a78571c9004263aed7b91c32a3f21f78426190

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b8e7ae0eb7ab91bfc9b1b4d3d512cf3316a32ebf18c6625c62916d68850e0b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-10-11T20:03:12Z",
    "title_canon_sha256": "6010777d595592a2482c7d6d77e92e1536cf52e7ed84fa296e785b4f31037469"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.3280",
    "kind": "arxiv",
    "version": 2
  }
}