Pith Number

pith:6NZWMU4Y

pith:2012:6NZWMU4YBNNF4JMG2JMQ5K34KN

not attested not anchored not stored refs pending

The halo masses and galaxy environments of hyperluminous QSOs at z~2.7 in the Keck Baryonic Structure Survey

Charles C. Steidel, Ryan F. Trainor

arxiv:1204.3636 v1 · 2012-04-16 · 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{6NZWMU4YBNNF4JMG2JMQ5K34KN}

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	2026-05-18T01:57:51.785867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3736653980b5a5e2586d2590eab7c536992ba436fc9cb853b3ec52424ef66e7

Aliases

arxiv: 1204.3636 · arxiv_version: 1204.3636v1 · doi: 10.48550/arxiv.1204.3636 · pith_short_12: 6NZWMU4YBNNF · pith_short_16: 6NZWMU4YBNNF4JMG · pith_short_8: 6NZWMU4Y

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/6NZWMU4YBNNF4JMG2JMQ5K34KN \
  | 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: f3736653980b5a5e2586d2590eab7c536992ba436fc9cb853b3ec52424ef66e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d855e37b1b9ca2f709ab8470499f9003b5898c711803b46cc20a90978417efe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-16T20:01:55Z",
    "title_canon_sha256": "ba0ccd792047b2fd25cf07b70edd67afc222be5d64fad7416b8ec71f46000f93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3636",
    "kind": "arxiv",
    "version": 1
  }
}