Pith Number

pith:Y4GCTUFG

pith:2013:Y4GCTUFGKCYJVCT7PCEWTQTKXX

not attested not anchored not stored refs pending

The galaxy environment of a QSO at z ~ 5.7

(2) Max Planck Institut f\"ur Extraterrestrische Physik, (3) The University of Texas at Austin, 4), (4) Observat\'orio Nacional, (5) Institute for Cosmic Ray Research, 6) ((1) Max Planck Institut f\"ur Astronomie, (6) Kavli Institute for the Physics, Bram Venemans (1), Eduardo Ba\~nados (1), Fabian Walter (1), Jaron Kurk (2), Masami Ouchi (5, Mathematics of the Universe (WPI), Rio de Janeiro-RJ Brazil, Roderik Overzier (3, Rua Jos\'e Cristino, The University of Tokyo), University of Tokyo

arxiv:1306.6642 v2 · 2013-06-27 · 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{Y4GCTUFGKCYJVCT7PCEWTQTKXX}

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	2026-05-18T03:15:42.978401Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c70c29d0a650b09a8a7f788969c26abde89d4d8d0e6109648c428530b191a7df

Aliases

arxiv: 1306.6642 · arxiv_version: 1306.6642v2 · doi: 10.48550/arxiv.1306.6642 · pith_short_12: Y4GCTUFGKCYJ · pith_short_16: Y4GCTUFGKCYJVCT7 · pith_short_8: Y4GCTUFG

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/Y4GCTUFGKCYJVCT7PCEWTQTKXX \
  | 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: c70c29d0a650b09a8a7f788969c26abde89d4d8d0e6109648c428530b191a7df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d52e88aca61c529139a3a595983ba172d69038190c3b6c33703e6522d5e1431b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-06-27T20:01:46Z",
    "title_canon_sha256": "8f0a6d0e8ca52c22f509636f7531e1304d30204b3c360715b09c35058f3b749b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.6642",
    "kind": "arxiv",
    "version": 2
  }
}