Pith Number

pith:4DOIX5MX

pith:2009:4DOIX5MXCX6YMTRN4CQNFB6EOK

not attested not anchored not stored refs pending

Dry mergers and the formation of early-type galaxies: constraints from lensing and dynamics

(2) UCSB, (3) IfA/Hawaii), Adam S. Bolton (3) ((1) Bologna University, Carlo Nipoti (1), Tommaso Treu (2)

arxiv:0908.1621 v1 · 2009-08-12 · 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{4DOIX5MXCX6YMTRN4CQNFB6EOK}

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	2026-05-18T02:12:35.254500Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0dc8bf59715fd864e2de0a0d287c472a9f4295aee659a4e7cb475b38f48bfbc

Aliases

arxiv: 0908.1621 · arxiv_version: 0908.1621v1 · doi: 10.48550/arxiv.0908.1621 · pith_short_12: 4DOIX5MXCX6Y · pith_short_16: 4DOIX5MXCX6YMTRN · pith_short_8: 4DOIX5MX

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/4DOIX5MXCX6YMTRN4CQNFB6EOK \
  | 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: e0dc8bf59715fd864e2de0a0d287c472a9f4295aee659a4e7cb475b38f48bfbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb11a65e684125d42ecec7d3736780814d7e607859f51ab7e5eb234bea1c443d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-08-12T06:25:02Z",
    "title_canon_sha256": "a8aacdd10be3f8ca67d12a546ca82567a097d2b1a864ce90089c134bef4af67d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1621",
    "kind": "arxiv",
    "version": 1
  }
}