Pith Number

pith:Q2N6GCOR

pith:2026:Q2N6GCORER2EZWM5UQFIWAIHKF

not attested not anchored not stored refs pending

The most extreme high-z radio quasars in the eRASS:1 X-ray survey

A. Caccianiga, A. Moretti, A. Rossi, B. Arsioli, E. Marini, L. Ighina, L. N. Mart\'inez-Ram\'irez, L. Palmieri, T. Connor, Y. Beletsky

arxiv:2608.04078 v1 · 2026-08-04 · 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{Q2N6GCORER2EZWM5UQFIWAIHKF}

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	2026-08-06T01:28:52.612621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

869be309d124744cd99da40a8b01075143977f63349c3e78f36e9d83dd7a048f

Aliases

arxiv: 2608.04078 · arxiv_version: 2608.04078v1 · doi: 10.48550/arxiv.2608.04078 · pith_short_12: Q2N6GCORER2E · pith_short_16: Q2N6GCORER2EZWM5 · pith_short_8: Q2N6GCOR

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/Q2N6GCORER2EZWM5UQFIWAIHKF \
  | 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: 869be309d124744cd99da40a8b01075143977f63349c3e78f36e9d83dd7a048f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78f72adf64dee70aea15845a2b50513d33d798b61a9da6dacf935de4cff4638c",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-08-04T18:00:00Z",
    "title_canon_sha256": "40e6b93ee6107fec76e650c44105cc8998d91c8520ef006a5e11a819dfacce0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.04078",
    "kind": "arxiv",
    "version": 1
  }
}