Pith Number

pith:THGBTJH5

pith:2019:THGBTJH5M6BR5Q7YVFMW4SSW6Q

not attested not anchored not stored refs pending

A Precision Measurement of the Mass of the Black Hole in NGC 3258 from High-Resolution ALMA Observations of its Circumnuclear Disk

Aaron J. Barth, Andrew J. Baker, Benjamin D. Boizelle, David A. Buote, Jeremy Darling, Jonelle L. Walsh, Luis C. Ho

arxiv:1906.06267 v1 · 2019-06-14 · 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{THGBTJH5M6BR5Q7YVFMW4SSW6Q}

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	2026-07-04T23:55:44.331389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99cc19a4fd67831ec3f8a9596e4a56f4291a4deb25a4bfe415fd9ef514cd481e

Aliases

arxiv: 1906.06267 · arxiv_version: 1906.06267v1 · doi: 10.48550/arxiv.1906.06267 · pith_short_12: THGBTJH5M6BR · pith_short_16: THGBTJH5M6BR5Q7Y · pith_short_8: THGBTJH5

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/THGBTJH5M6BR5Q7YVFMW4SSW6Q \
  | 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: 99cc19a4fd67831ec3f8a9596e4a56f4291a4deb25a4bfe415fd9ef514cd481e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79b969ab006da519b1c1ccb00ba9f97d44139bfeeb08a81f63e54b07843dc45c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-06-14T16:08:31Z",
    "title_canon_sha256": "89ca03ced9a27cb9a3cc2a92c26da886fa74086db2cc254586ae15cf1d6336d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.06267",
    "kind": "arxiv",
    "version": 1
  }
}