Pith Number

pith:QE2J2DVS

pith:2019:QE2J2DVS5OZXKXUDRQ2LBGN6TF

not attested not anchored not stored refs pending

Discovery of a galaxy overdensity around a powerful, heavily obscured FRII radio galaxy at z=1.7: star formation promoted by large-scale AGN feedback?

A. Citro, A. Comastri, A. Peca, B. Balmaverde, C. Norman, C. Vignali, E. Decarli, E. Liuzzo, E. Pinna, E. Vanzella, F. Calura, F. Cusano, F. Mannucci, F. Vito, G.B. Caminha, G. Lanzuisi, G. Zamorani, I. Prandoni, M. Brusa, M. Chiaberge, M. Mignoli, N. Cappelluti, O. Cucciati, P. Grandi, P. Tozzi, Q. D'Amato, R. Gilli, R. Nanni

arxiv:1909.00814 v2 · 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{QE2J2DVS5OZXKXUDRQ2LBGN6TF}

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	2026-07-05T00:22:18.382883Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81349d0eb2ebb3755e838c34b099be997134676e4202832aca3a159f39d68ad2

Aliases

arxiv: 1909.00814 · arxiv_version: 1909.00814v2 · doi: 10.48550/arxiv.1909.00814 · pith_short_12: QE2J2DVS5OZX · pith_short_16: QE2J2DVS5OZXKXUD · pith_short_8: QE2J2DVS

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/QE2J2DVS5OZXKXUDRQ2LBGN6TF \
  | 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: 81349d0eb2ebb3755e838c34b099be997134676e4202832aca3a159f39d68ad2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5200f07bd4171ad4e6ba670d0990cf92ace8c4fe50a03a37c58d1a0a041e6b7",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-09-02T18:00:06Z",
    "title_canon_sha256": "2c5c06ba6a19552de3cb8f85b8c8f2e97459f62777a8063b231bb92e7b87df60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.00814",
    "kind": "arxiv",
    "version": 2
  }
}