Pith Number

pith:Q27ALSQG

pith:2016:Q27ALSQGBERI7Q4T6DTUGE3YUI

not attested not anchored not stored refs pending

Improved Dynamical Constraints on the Mass of the central Black Hole in NGC 404

Aaron J. Barth, Anil C. Seth, Benjamin F. Williams, Breanna Binder, Dieu D. Nguyen, Mark den Brok, Michele Cappellari, Nadine Neumayer, Nelson Caldwell

arxiv:1610.09385 v2 · 2016-10-28 · 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{Q27ALSQGBERI7Q4T6DTUGE3YUI}

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	2026-05-18T00:49:23.535572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86be05ca0609228fc393f0e7431378a23620452bee8da9a34cf94c151171598e

Aliases

arxiv: 1610.09385 · arxiv_version: 1610.09385v2 · doi: 10.48550/arxiv.1610.09385 · pith_short_12: Q27ALSQGBERI · pith_short_16: Q27ALSQGBERI7Q4T · pith_short_8: Q27ALSQG

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/Q27ALSQGBERI7Q4T6DTUGE3YUI \
  | 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: 86be05ca0609228fc393f0e7431378a23620452bee8da9a34cf94c151171598e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a13a649303f61597cb0b9cdf140460bfbc08bda415e8cc13b9d244cb3e638699",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-10-28T20:00:27Z",
    "title_canon_sha256": "00cca2299c1c003f3832b5f3f1d47902a0cb3be5b927b117ea77d919acc87a87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.09385",
    "kind": "arxiv",
    "version": 2
  }
}