Pith Number

pith:6YBCBLZE

pith:2006:6YBCBLZE5AIRU3ZAME2EQIVWOW

not attested not anchored not stored refs pending

Constraining quasar host halo masses with the strength of nearby Lyman-alpha forest absorption

Rupert Croft (CMU), Young-Rae Kim (CMU)

arxiv:astro-ph/0701012 v1 · 2006-12-30 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6YBCBLZE5AIRU3ZAME2EQIVWOW}

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

A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: I. Galaxy Mergers & Quasar Activity

Receipt and verification

First computed	2026-05-18T01:40:27.195143Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f60220af24e8111a6f2061344822b675987ebd520a78e169a1860e55c7678f6f

Aliases

arxiv: astro-ph/0701012 · arxiv_version: astro-ph/0701012v1 · doi: 10.48550/arxiv.astro-ph/0701012 · pith_short_12: 6YBCBLZE5AIR · pith_short_16: 6YBCBLZE5AIRU3ZA · pith_short_8: 6YBCBLZE

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/6YBCBLZE5AIRU3ZAME2EQIVWOW \
  | 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: f60220af24e8111a6f2061344822b675987ebd520a78e169a1860e55c7678f6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b3b8b508129aa25da0156771b6e2bac6108ecd93b3783fecf7df6ca309501a6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-12-30T21:11:37Z",
    "title_canon_sha256": "18cae8b98e2dcd228b258fc5a6d1a2737659c6a7fca81a38d5586921f9e62b97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701012",
    "kind": "arxiv",
    "version": 1
  }
}