Pith Number

pith:QPACRA5T

pith:2009:QPACRA5T7PUSWLEOISD2SVTJIA

not attested not anchored not stored refs pending

Galaxy Statistics in Pencil-beam Surveys at High Redshifts

Abraham Loeb, Hy Trac, Joseph A. Mu\~noz

arxiv:0906.2782 v3 · 2009-06-15 · 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{QPACRA5T7PUSWLEOISD2SVTJIA}

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	2026-05-18T02:13:19.921927Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83c02883b3fbe92b2c8e4487a95669402a25740c578243fa593d9d4dabf48976

Aliases

arxiv: 0906.2782 · arxiv_version: 0906.2782v3 · doi: 10.48550/arxiv.0906.2782 · pith_short_12: QPACRA5T7PUS · pith_short_16: QPACRA5T7PUSWLEO · pith_short_8: QPACRA5T

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/QPACRA5T7PUSWLEOISD2SVTJIA \
  | 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: 83c02883b3fbe92b2c8e4487a95669402a25740c578243fa593d9d4dabf48976

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e929181967836f33e1566631c2e076da8d163fa8816b9599d45ca22dd167d3e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-06-15T20:00:51Z",
    "title_canon_sha256": "fcc41fd126cd089ee6873c9cd45b4ede0a60cccc4b7b404f145c966a16fb21b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.2782",
    "kind": "arxiv",
    "version": 3
  }
}