Pith Number

pith:OJPKFNUJ

pith:2018:OJPKFNUJOERDQS6LV66GBLNZPT

not attested not anchored not stored refs pending

Measuring supermassive black hole peculiar motion using H$_2$O megamasers

Dominic W. Pesce, James A. Braatz, James J. Condon, Jenny E. Greene

arxiv:1807.04598 v1 · 2018-07-12 · 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{OJPKFNUJOERDQS6LV66GBLNZPT}

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	2026-05-18T00:07:06.138936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

725ea2b6897122384bcbafbc60adb97cef868216706b1a5b40941f44b7d00f71

Aliases

arxiv: 1807.04598 · arxiv_version: 1807.04598v1 · doi: 10.48550/arxiv.1807.04598 · pith_short_12: OJPKFNUJOERD · pith_short_16: OJPKFNUJOERDQS6L · pith_short_8: OJPKFNUJ

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/OJPKFNUJOERDQS6LV66GBLNZPT \
  | 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: 725ea2b6897122384bcbafbc60adb97cef868216706b1a5b40941f44b7d00f71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e362de97350565b0e8d872cec7f1b1d1e16c46389fb4be00b31da10d34290806",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-12T13:30:40Z",
    "title_canon_sha256": "ad27774b53ca7cdadd7e81dc99745e4550c7998c702836368cde5b0354973cd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04598",
    "kind": "arxiv",
    "version": 1
  }
}