Pith Number

pith:KYSNJR2H

pith:2020:KYSNJR2HDOTAYVYYOW7FZQHMCI

not attested not anchored not stored refs pending

Revealing the intermediate-mass black hole at the heart of the dwarf galaxy NGC 404 with sub-parsec resolution ALMA observations

Aaron J. Barth, Anil C. Seth, Dieu D. Nguyen, Eve V. North, Federico Lelli, Jenny E. Greene, Kristina Nyland, Kyoko Onishi, Lijie Liu, Marc Sarzi, Mark den Brok, Mark D. Smith, Martin Bureau, Michele Cappellari, Nadine Neumayer, Satoru Iguchi, Thomas G. Williams, Timothy A. Davis

arxiv:2007.05536 v1 · 2020-07-10 · 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{KYSNJR2HDOTAYVYYOW7FZQHMCI}

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	2026-07-05T01:17:48.932454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5624d4c7471ba60c571875be5cc0ec1235bd2902d2027d10d674055e5f9cd290

Aliases

arxiv: 2007.05536 · arxiv_version: 2007.05536v1 · doi: 10.48550/arxiv.2007.05536 · pith_short_12: KYSNJR2HDOTA · pith_short_16: KYSNJR2HDOTAYVYY · pith_short_8: KYSNJR2H

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/KYSNJR2HDOTAYVYYOW7FZQHMCI \
  | 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: 5624d4c7471ba60c571875be5cc0ec1235bd2902d2027d10d674055e5f9cd290

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5edf6ec5926aae7539fac31c057112e3f6f0e396583d7f967c2570db20a71ad5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-07-10T18:00:00Z",
    "title_canon_sha256": "4edd51063e57f81f55bfdb53750635675851b0c7f31ed0fcfb728ba3735ac792"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.05536",
    "kind": "arxiv",
    "version": 1
  }
}