Pith Number

pith:PZGUSAZF

pith:2018:PZGUSAZF7PSL42ZLFGYROLTKQF

not attested not anchored not stored refs pending

Two more, bright, z > 6 quasars from VST ATLAS and WISE

2), (2) Institute for Astronomy, (3) Institute of Astronomy, 4), (4) Institute for Computational Cosmology, (5) Department of Physics, (6) Max-Planck-Institut fur Astronomie, (7) University of California Observatories-Lick Observatory, A. C. Carnall (1, Astronomy, B. Chehade (1), Cambridge UK, C. Diener (3), C. Leibler (7), Department of Physics, D.N.A. Murphy (3), Durham, Durham UK, Durham University, E. Gonzalez-Solares (3) ((1) Centre for Extragalactic Astronomy, Germany, Heidelberg, J. Hennawi (6), J.R. Findlay (5), J.X. Prochaska (7), Laramie, Madingley Road, M. Fumagalli (1, M.J. Irwin (3), N. Metcalfe (1), Royal Observatory Edinburgh, Santa Cruz, T. Shanks (1), UK, University of California, University of Edinburgh, University of Wyoming, USA, USA)

arxiv:1803.01424 v1 · 2018-03-04 · 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{PZGUSAZF7PSL42ZLFGYROLTKQF}

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	2026-05-18T00:19:20.515405Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e4d490325fbe4be6b2b29b1172e6a817510baa6d2694ad5fb62f57a657d88bf

Aliases

arxiv: 1803.01424 · arxiv_version: 1803.01424v1 · doi: 10.48550/arxiv.1803.01424 · pith_short_12: PZGUSAZF7PSL · pith_short_16: PZGUSAZF7PSL42ZL · pith_short_8: PZGUSAZF

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/PZGUSAZF7PSL42ZLFGYROLTKQF \
  | 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: 7e4d490325fbe4be6b2b29b1172e6a817510baa6d2694ad5fb62f57a657d88bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d01fb4dece6d5b3d9ef1adeec8bed1413adfe9428e5fa933abbdde89e5047d37",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-03-04T21:21:05Z",
    "title_canon_sha256": "351858143f592abef4550b0000ba7d050879326b0f3f79dc87ee178679c68065"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.01424",
    "kind": "arxiv",
    "version": 1
  }
}