Pith Number

pith:J6RE2FPV

pith:2019:J6RE2FPVI33XFG7CM7CYXJY6XY

not attested not anchored not stored refs pending

Unveiling the weak radio quasar population at z $\geq$ 4

Krisztina \'E. Gab\'anyi, Krisztina Perger, L. Viktor T\'oth, S\'andor Frey

arxiv:1909.11012 v2 · 2019-09-24 · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J6RE2FPVI33XFG7CM7CYXJY6XY}

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	2026-07-05T01:16:09.716140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fa24d15f546f7729be267c58ba71ebe0c3741917a0f4fbaa3701463c5d5aeac

Aliases

arxiv: 1909.11012 · arxiv_version: 1909.11012v2 · doi: 10.48550/arxiv.1909.11012 · pith_short_12: J6RE2FPVI33X · pith_short_16: J6RE2FPVI33XFG7C · pith_short_8: J6RE2FPV

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/J6RE2FPVI33XFG7CM7CYXJY6XY \
  | 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: 4fa24d15f546f7729be267c58ba71ebe0c3741917a0f4fbaa3701463c5d5aeac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ee1104da8b641ba3103b44816c53d30ef7ffb0cf920814f7ec3859648fd37bc",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-09-24T15:47:42Z",
    "title_canon_sha256": "bedec8526733a1470cfb8da2ef1cd6acedd054ffdac55ee16f614dc91bd37bab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.11012",
    "kind": "arxiv",
    "version": 2
  }
}