Pith Number

pith:OJ5EPXH2

pith:2013:OJ5EPXH2LQYPWIY7LJ2J27PSJE

not attested not anchored not stored refs pending

X-rays from the redshift 7.1 quasar ULAS J1120+0641

B.P. Venemans, C. Simpson, D.J. Mortlock, M.J. Page, P.C. Hewett, R.G. McMahon, S.J. Warren

arxiv:1311.1686 v2 · 2013-11-07 · 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{OJ5EPXH2LQYPWIY7LJ2J27PSJE}

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.

Cited by

1 paper in Pith

Massquerade: Impacts of Mass Ratio Reversals on Binary Black Hole Merger Rates and Mass Distributions

Receipt and verification

First computed	2026-05-18T01:46:33.270874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

727a47dcfa5c30fb231f5a749d7df24920853a5945ce6c09f04be05c9dfd93bf

Aliases

arxiv: 1311.1686 · arxiv_version: 1311.1686v2 · doi: 10.48550/arxiv.1311.1686 · pith_short_12: OJ5EPXH2LQYP · pith_short_16: OJ5EPXH2LQYPWIY7 · pith_short_8: OJ5EPXH2

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/OJ5EPXH2LQYPWIY7LJ2J27PSJE \
  | 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: 727a47dcfa5c30fb231f5a749d7df24920853a5945ce6c09f04be05c9dfd93bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f19a4edaac203193f2e17634d7c721f519df9f494553cc98488b3a600b84bdf4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-11-07T14:02:28Z",
    "title_canon_sha256": "ce178bdd86fef482e7ac82564861e49d97f3e3af9ddca9b741ab5f66c3464d57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.1686",
    "kind": "arxiv",
    "version": 2
  }
}