Pith Number

pith:RMVJZIBV

pith:2019:RMVJZIBV2QF33B53REKAJ6XQTO

not attested not anchored not stored refs pending

Astro2020 Science White Paper: The Local Relics of of Supermassive Black Hole Seeds

Aaron Barth (UC Irvine), Amy Reines (Montana State U), Andrea Bellini (STScI), Anil Seth (U of Utah), Dongwon Kim (UC Berkeley), Elena Gallo (U of Michigan), Fisk), Jenny E Greene (Princeton), Jessica Lu (UC Berkeley), Jillian Bellovary (Queensborough Community College/AMNH), Joan Wrobel (NRAO), Jonelle Walsh (Texas A \& M), Karl Gebhardt (UT Austin), Kayhan Gultekin (U Michigan), Kelly Holley-Bockelmann (Vanderbilt, Kristina Nyland (National Research Council, Matthew Hosek Jr. (UCLA), Matthew Malkan (UCLA), Mattia Libralato (STScI), resident at the Naval Research Laboratory), Tommaso Treu (UCLA), Tuan Do (UCLA), Zoltan Haiman (Columbia University)

arxiv:1903.08670 v1 · 2019-03-20 · 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{RMVJZIBV2QF33B53REKAJ6XQTO}

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	2026-05-17T23:50:44.234301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b2a9ca035d40bbd87bb891404faf09b81def213aebf1ade95a588cf8616b7e7

Aliases

arxiv: 1903.08670 · arxiv_version: 1903.08670v1 · doi: 10.48550/arxiv.1903.08670 · pith_short_12: RMVJZIBV2QF3 · pith_short_16: RMVJZIBV2QF33B53 · pith_short_8: RMVJZIBV

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/RMVJZIBV2QF33B53REKAJ6XQTO \
  | 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: 8b2a9ca035d40bbd87bb891404faf09b81def213aebf1ade95a588cf8616b7e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f75849dbb646c956e02540ab514c1637d122fec2f5c06a53839c6e56b07fb28",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-03-20T18:01:02Z",
    "title_canon_sha256": "5b4eee5a687460c7f29ff4e07f3691d385ff085c491812f2f36051db56d4696d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08670",
    "kind": "arxiv",
    "version": 1
  }
}