Pith Number

pith:ZHJBJ3JK

pith:2013:ZHJBJ3JKY64YDRDYRPZUQ3BQ64

not attested not anchored not stored refs pending

The orientation dependence of quasar spectral energy distributions

Jessie Runnoe, Michael Brotherton, Zhaohui Shang

arxiv:1309.0182 v1 · 2013-09-01 · 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{ZHJBJ3JKY64YDRDYRPZUQ3BQ64}

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	2026-05-18T01:47:50.977869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9d214ed2ac7b981c4788bf3486c30f71d9467864793ea490fd6a7521ab7fb49

Aliases

arxiv: 1309.0182 · arxiv_version: 1309.0182v1 · doi: 10.48550/arxiv.1309.0182 · pith_short_12: ZHJBJ3JKY64Y · pith_short_16: ZHJBJ3JKY64YDRDY · pith_short_8: ZHJBJ3JK

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/ZHJBJ3JKY64YDRDYRPZUQ3BQ64 \
  | 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: c9d214ed2ac7b981c4788bf3486c30f71d9467864793ea490fd6a7521ab7fb49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12e5cb57a251ee0cfd3a614675c1e00ba06abcf5bb0589fc1cef4f8c905714ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-09-01T05:01:40Z",
    "title_canon_sha256": "3e35a096852dc539c23c7baae4c33519abe9c506334f0afd703372a2fbb9afb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.0182",
    "kind": "arxiv",
    "version": 1
  }
}