Pith Number

pith:VA6IQFJT

pith:2024:VA6IQFJTTW7W54Z5DHIM4SPCA3

not attested not anchored not stored refs pending

Radio-loud fraction of z>6 quasars

Ajay Kumar, Gianni Bernardi, Nissim Kanekar, Nithyanandan Thyagarajan, Pascal M. Keller

arxiv:2402.08732 v1 · 2024-02-13 · 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{VA6IQFJTTW7W54Z5DHIM4SPCA3}

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	2026-07-05T07:45:01.607964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a83c8815339dbf6ef33d19d0ce49e206c49bfeaf6ea79f78afc24794f6acc450

Aliases

arxiv: 2402.08732 · arxiv_version: 2402.08732v1 · doi: 10.48550/arxiv.2402.08732 · pith_short_12: VA6IQFJTTW7W · pith_short_16: VA6IQFJTTW7W54Z5 · pith_short_8: VA6IQFJT

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/VA6IQFJTTW7W54Z5DHIM4SPCA3 \
  | 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: a83c8815339dbf6ef33d19d0ce49e206c49bfeaf6ea79f78afc24794f6acc450

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7aaaa50ff215f537415a81357eeba9db32f309c70a3dd7adc47c4cb2858c4530",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2024-02-13T19:01:12Z",
    "title_canon_sha256": "c0fc3a78b6d7cb8bf505bab53557f65efda71e59d67b10016ad34e2d34258dd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.08732",
    "kind": "arxiv",
    "version": 1
  }
}