Pith Number

pith:RQ2V65TQ

pith:2013:RQ2V65TQ7TFEMR2XZXTZS6L3CQ

not attested not anchored not stored refs pending

The Effect of Spatial Gradients in Stellar Mass-to-Light Ratio on Black Hole Mass Measurements

Chung-Pei Ma (UC Berkeley), Jenny E. Greene (Princeton), Karl Gebhardt (UT Austin), Nicholas J. McConnell (IfA, Shi-Fan S. Chen (Phillips Exeter Academy), Tod R. Lauer (NOAO), University of Hawaii)

arxiv:1303.4393 v1 · 2013-03-18 · 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{RQ2V65TQ7TFEMR2XZXTZS6L3CQ}

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	2026-05-18T01:51:01.052796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c355f7670fcca464757cde799797b1421bf6469bb00d5e55a19d8dbfe4e537f

Aliases

arxiv: 1303.4393 · arxiv_version: 1303.4393v1 · doi: 10.48550/arxiv.1303.4393 · pith_short_12: RQ2V65TQ7TFE · pith_short_16: RQ2V65TQ7TFEMR2X · pith_short_8: RQ2V65TQ

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/RQ2V65TQ7TFEMR2XZXTZS6L3CQ \
  | 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: 8c355f7670fcca464757cde799797b1421bf6469bb00d5e55a19d8dbfe4e537f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5157ec4808b94f2d2e2a4288fae49e01967b6f27617f208e2c84a16f8dcd7a5c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-18T20:00:04Z",
    "title_canon_sha256": "07b1a25d4b0bfb10fae347a0f1e732d5442fa3530a2086c58ae61700f12563e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.4393",
    "kind": "arxiv",
    "version": 1
  }
}