Pith Number

pith:L7QKJEFG

pith:2014:L7QKJEFGGQFDQ7GCEHX3HDCVY5

not attested not anchored not stored refs pending

The Host Galaxies of X-ray Quasars Are Not Strong Star Formers

A.J. Barger, C.-C. Chen, F.N. Owen, G. Hasinger, L.L. Cowie, L.-Y. Hsu, Y. Li

arxiv:1412.1148 v2 · 2014-12-03 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L7QKJEFGGQFDQ7GCEHX3HDCVY5}

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	2026-07-05T00:33:31.666503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fe0a490a6340a387cc221efb38c55c74d53a163d999b2c535b3d035639285f3

Aliases

arxiv: 1412.1148 · arxiv_version: 1412.1148v2 · doi: 10.48550/arxiv.1412.1148 · pith_short_12: L7QKJEFGGQFD · pith_short_16: L7QKJEFGGQFDQ7GC · pith_short_8: L7QKJEFG

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/L7QKJEFGGQFDQ7GCEHX3HDCVY5 \
  | 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: 5fe0a490a6340a387cc221efb38c55c74d53a163d999b2c535b3d035639285f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7091d96e8e93358c57c836e2f2daf7f8b5a99d5b23c565389235a6e6b6f87413",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-12-03T01:26:32Z",
    "title_canon_sha256": "b2647a77f828f0e8efaaeadc7c9a8501c5e734bd00d90701a637a1a042033347"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.1148",
    "kind": "arxiv",
    "version": 2
  }
}