Pith Number

pith:56XIUTHB

pith:2009:56XIUTHBPA5FQIRPBDHVAJM5OL

not attested not anchored not stored refs pending

The Transverse Peculiar Velocity of the Q2237+0305 Lens Galaxy and the Mean Mass of Its Stars

Christopher S. Kochanek (Department of Astronomy, Shawn Poindexter, The Ohio State University)

arxiv:0910.3213 v2 · 2009-10-16 · 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{56XIUTHBPA5FQIRPBDHVAJM5OL}

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	2026-05-18T02:34:18.528431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efae8a4ce1783a58222f08cf50259d72e0cbb10b5c3056b0db20d73c10997fdd

Aliases

arxiv: 0910.3213 · arxiv_version: 0910.3213v2 · doi: 10.48550/arxiv.0910.3213 · pith_short_12: 56XIUTHBPA5F · pith_short_16: 56XIUTHBPA5FQIRP · pith_short_8: 56XIUTHB

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/56XIUTHBPA5FQIRPBDHVAJM5OL \
  | 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: efae8a4ce1783a58222f08cf50259d72e0cbb10b5c3056b0db20d73c10997fdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb72a6be60eca0699a5204fdc0be6056a3171fad4c639d240402b0a2095ae8a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-16T20:01:20Z",
    "title_canon_sha256": "c0c20a9001a95c9112e03a6965575804fc8947a9a66ead5e495b3f16b2310f76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.3213",
    "kind": "arxiv",
    "version": 2
  }
}