Pith Number

pith:NO4J3ZKP

pith:2016:NO4J3ZKPUL3EP4BFP2XPHURYWS

not attested not anchored not stored refs pending

A Low-Mass Black Hole in the Nearby Seyfert Galaxy UGC 06728

Camilo Machuca, Caroline A. Roberts, Clay Turner, Crystal L. Pope, Dicy Saylor, James Seals, Jeremy Jones, J. Robert Parks, Karen Garcia, Kathryn Lester, Matthew D. Anderson, Merida Batiste, Misty C. Bentz, Mitchell Revalski, Rachel Kuzio de Naray, R. Andrew Sevrinsky, Wesley Peters

arxiv:1608.03893 v1 · 2016-08-12 · 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{NO4J3ZKPUL3EP4BFP2XPHURYWS}

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	2026-05-18T01:01:22.488979Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bb89de54fa2f647f0257eaef3d238b4a9cd036bf0364c92e908dd6d57bd5b32

Aliases

arxiv: 1608.03893 · arxiv_version: 1608.03893v1 · doi: 10.48550/arxiv.1608.03893 · pith_short_12: NO4J3ZKPUL3E · pith_short_16: NO4J3ZKPUL3EP4BF · pith_short_8: NO4J3ZKP

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/NO4J3ZKPUL3EP4BFP2XPHURYWS \
  | 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: 6bb89de54fa2f647f0257eaef3d238b4a9cd036bf0364c92e908dd6d57bd5b32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62335374d2db0e44af2929f06f3edf97d9dfacea75ec80cb18029f2b4e3fdbb7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-08-12T20:00:00Z",
    "title_canon_sha256": "82a2df0a98d95997dae270a0c0941c5d65bf13560fc069611b8c4917fefc3ad0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.03893",
    "kind": "arxiv",
    "version": 1
  }
}