Pith Number

pith:E4NPJ2WA

pith:2017:E4NPJ2WAPCUWGHS5GCQVKEWGBC

not attested not anchored not stored refs pending

The first 62 AGN observed with SDSS-IV MaNGA - I: their characterization and definition of a control sample

Alice D. Machado, Bas\'ilio X. Santiago, Dmitry Bizyaev, Dominika Wylezalek, Donald P. Schneider, Francisco M\"uller-S\'anchez, Gabriele S. Ilha, J\'aderson S. Shimoia, Jana\'ina C. do Nascimento, Kaike Pan, Luiz N. Da Costa, Marcio A. G. Maia, N\'icolas D. Mallmann, Rafael Cirolini, Rogemar A. Riffel, Rog\'erio Riffel, Sandro B. Rembold, Thaisa Storchi-Bergmann, Thales N. Moreira

arxiv:1709.10086 v1 · 2017-09-28 · 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{E4NPJ2WAPCUWGHS5GCQVKEWGBC}

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	2026-05-18T00:32:38.677146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

271af4eac078a9631e5d30a15512c608a8ecf1ad92d7255f75846cab63742449

Aliases

arxiv: 1709.10086 · arxiv_version: 1709.10086v1 · doi: 10.48550/arxiv.1709.10086 · pith_short_12: E4NPJ2WAPCUW · pith_short_16: E4NPJ2WAPCUWGHS5 · pith_short_8: E4NPJ2WA

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/E4NPJ2WAPCUWGHS5GCQVKEWGBC \
  | 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: 271af4eac078a9631e5d30a15512c608a8ecf1ad92d7255f75846cab63742449

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f789a33e2578ae14dfd6007fb9d4a5911be2821aa85144079351aa15bfb3e055",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-09-28T17:50:48Z",
    "title_canon_sha256": "9985ed4eff8c037a94aefab46aa89caff3833f19a1e7dd3ade2623ab69a2f3dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.10086",
    "kind": "arxiv",
    "version": 1
  }
}