Pith Number

pith:IMI6UYWN

pith:2012:IMI6UYWNLO5D6IDOZDTXU4G6MO

not attested not anchored not stored refs pending

Dynamical Measurements of Black Hole Masses in Four Brightest Cluster Galaxies at 100 Mpc

Astrophysics), Chung-Pei Ma (UC Berkeley), Douglas O. Richstone (UM Ann Arbor), James R. Graham (UC Berkeley), Jeremy D. Murphy (UT Austin), Karl Gebhardt (UT Austin), Nicholas J. McConnell (UC Berkeley), Shelley A. Wright (Dunlap Institute for Astronomy, Tod R. Lauer (NOAO)

arxiv:1203.1620 v2 · 2012-03-07 · 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{IMI6UYWNLO5D6IDOZDTXU4G6MO}

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	2026-05-18T01:58:13.449785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4311ea62cd5bba3f206ec8e77a70de63879a8c53e135d02474d7be00fc3ab0d3

Aliases

arxiv: 1203.1620 · arxiv_version: 1203.1620v2 · doi: 10.48550/arxiv.1203.1620 · pith_short_12: IMI6UYWNLO5D · pith_short_16: IMI6UYWNLO5D6IDO · pith_short_8: IMI6UYWN

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/IMI6UYWNLO5D6IDOZDTXU4G6MO \
  | 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: 4311ea62cd5bba3f206ec8e77a70de63879a8c53e135d02474d7be00fc3ab0d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa1206f4935bd38d548e495abccf151d2e3b01033b992e9edf2294478021e5db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-03-07T21:00:04Z",
    "title_canon_sha256": "c4914d9e5d472c55678375b58e8d60efae242569173587fa47be299264ea2028"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.1620",
    "kind": "arxiv",
    "version": 2
  }
}