Pith Number

pith:VZC7DKZG

pith:2015:VZC7DKZGC72T63XOXNUTFIWCSL

not attested not anchored not stored refs pending

Radio recombination lines from obscured quasars with the SKA

(2) INAF - Osservatorio Astronomico di Roma, (3) SKA SA, 4, (4) Department of Physics, 5) ((1) Scuola Normale Superiore, (5) Harvard-Smithsonian Center for Astrophysics, Andrea Ferrara (1), Cambridge, Chiara Feruglio (1), Electronics, Gianni Bernardi (3, Grahamstown, Italy, Luca Graziani (2), MA, Monte Porzio Catone, Pinelands, Pisa, Rhodes University, Serena Manti (1), Simona Gallerani (1), South Africa, USA)

arxiv:1511.03267 v2 · 2015-11-10 · 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{VZC7DKZGC72T63XOXNUTFIWCSL}

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	2026-05-18T01:23:54.371273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae45f1ab2617f53f6eeebb6932a2c292c4a7c21060765d17dbe12daffb6be8b2

Aliases

arxiv: 1511.03267 · arxiv_version: 1511.03267v2 · doi: 10.48550/arxiv.1511.03267 · pith_short_12: VZC7DKZGC72T · pith_short_16: VZC7DKZGC72T63XO · pith_short_8: VZC7DKZG

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/VZC7DKZGC72T63XOXNUTFIWCSL \
  | 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: ae45f1ab2617f53f6eeebb6932a2c292c4a7c21060765d17dbe12daffb6be8b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51f8e79340408f4e80a635c17c766cdf2381047dd99efaff3be4a80245e1f1dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-11-10T20:59:54Z",
    "title_canon_sha256": "cc103a46bfb45fd60800e00baee29b590d7ef267f8d9ccd19e651955f02e4b6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.03267",
    "kind": "arxiv",
    "version": 2
  }
}