Pith Number

pith:IYWNJQS5

pith:2014:IYWNJQS55TGZX3M34O6J27KYJX

not attested not anchored not stored refs pending

A dust-parallax distance of 19 megaparsecs to the supermassive black hole in NGC 4151

2), (2) University of Southampton, (3) Kyoto Sangyo University), Darach Watson (1), Jens Hjorth (1) ((1) Dark Cosmology Centre, Makoto Kishimoto (3), Sebastian F. H\"onig (1

arxiv:1411.7032 v1 · 2014-11-25 · 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{IYWNJQS55TGZX3M34O6J27KYJX}

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	2026-05-18T01:41:25.837633Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

462cd4c25deccd9bed9be3bc9d7d584def83faf14c7763e968e667c10fd8f9bf

Aliases

arxiv: 1411.7032 · arxiv_version: 1411.7032v1 · doi: 10.48550/arxiv.1411.7032 · pith_short_12: IYWNJQS55TGZ · pith_short_16: IYWNJQS55TGZX3M3 · pith_short_8: IYWNJQS5

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/IYWNJQS55TGZX3M34O6J27KYJX \
  | 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: 462cd4c25deccd9bed9be3bc9d7d584def83faf14c7763e968e667c10fd8f9bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80c9175cedaa1c90b8290c2ad90167b959323a2a8fd2a584180d1ae5bae75123",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-11-25T21:00:05Z",
    "title_canon_sha256": "c681b896264daea1e21626191a184f2d7f95681760b7b6dadb01851a42dc3cb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.7032",
    "kind": "arxiv",
    "version": 1
  }
}