Pith Number

pith:W62QX7NK

pith:2019:W62QX7NKCZQXVOUEKKKB7PLN5C

not attested not anchored not stored refs pending

The space densities and emissivities of AGNs at $z> 4$

A. Fontana, A. Grazian, D. Kodra, E. Giallongo, F. Fiore, J. A. Newman, K. Boutsia, L. Pentericci, M. Castellano, M. Dickinson, N. Menci, S. Cristiani, S. Puccetti, T. Urrutia

arxiv:1909.00702 v1 · 2019-09-02 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W62QX7NKCZQXVOUEKKKB7PLN5C}

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	2026-07-05T00:01:12.289688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7b50bfdaa16617aba8452941fbd6de8b012987d94bddbccbe14d8d28264ebe5

Aliases

arxiv: 1909.00702 · arxiv_version: 1909.00702v1 · doi: 10.48550/arxiv.1909.00702 · pith_short_12: W62QX7NKCZQX · pith_short_16: W62QX7NKCZQXVOUE · pith_short_8: W62QX7NK

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/W62QX7NKCZQXVOUEKKKB7PLN5C \
  | 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: b7b50bfdaa16617aba8452941fbd6de8b012987d94bddbccbe14d8d28264ebe5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ff243a70e477f45e62f3dd72ac07127a56a73dcf4020f6b2f9335460258b602",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-09-02T13:10:41Z",
    "title_canon_sha256": "d8c2a9e8aa4206efded94d96ad252fddaccb964641c7f0cd9629898c59a322ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.00702",
    "kind": "arxiv",
    "version": 1
  }
}