Pith Number

pith:6RYD55MM

pith:2021:6RYD55MMXEU7AYV4UTIVAYY3KQ

not attested not anchored not stored refs pending

Discovery of the most X-ray luminous quasar SRGE J170245.3+130104 at redshift z$\approx5.5$

2), (2) Kazan Federal University, 3), (3) Faculty of Computational Mathematics, (4) Special Astrophysical Observatory RAS, 5), 5) ((1) Space Research Institute RAS, (5) Max Planck Institute for Astrophysics Garching), A.V. Meshcheryakov (1, Cybernetics Lomonosov Moscow State University, E.S. Shablovinskaya (4), G.A. Khorunzhev (1), M.R. Gilfanov (1, P.S. Medvedev (1), R.A. Burenin (1), R.A. Krivonos (1), R.A. Sunyaev (1, R.I. Uklein (4), S.N. Dodonov (4), S.Yu. Sazonov (1), V.D. Borisov (1, V.L. Afanasyev (4)

arxiv:2104.05142 v2 · 2021-04-12 · astro-ph.HE · 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{6RYD55MMXEU7AYV4UTIVAYY3KQ}

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	2026-07-05T02:53:40.887121Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4703ef58cb929f062bca4d150631b541b5df040f2053b1ff6d606a36b8eb615

Aliases

arxiv: 2104.05142 · arxiv_version: 2104.05142v2 · doi: 10.48550/arxiv.2104.05142 · pith_short_12: 6RYD55MMXEU7 · pith_short_16: 6RYD55MMXEU7AYV4 · pith_short_8: 6RYD55MM

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/6RYD55MMXEU7AYV4UTIVAYY3KQ \
  | 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: f4703ef58cb929f062bca4d150631b541b5df040f2053b1ff6d606a36b8eb615

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9993b9df15842faa1142bbdc440429994915fab602bd761605b63c0a79ddc3da",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-04-12T00:20:05Z",
    "title_canon_sha256": "b532b92baa7c22865896e96951e3edecddd1c2b1453e7fda833c3e544ef2e93e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.05142",
    "kind": "arxiv",
    "version": 2
  }
}