Pith Number

pith:APEHZOOJ

pith:2009:APEHZOOJ3HNARBHOR4MO5TZ3PZ

not attested not anchored not stored refs pending

The Fifth Data Release Sloan Digital Sky Survey/XMM-Newton Quasar Survey

G. Risaliti, M. Elvis, M. Young

arxiv:0905.0496 v3 · 2009-05-04 · astro-ph.HE · 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{APEHZOOJ3HNARBHOR4MO5TZ3PZ}

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	2026-05-18T02:13:47.726948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03c87cb9c9d9da0884ee8f18eecf3b7e64c373ef76db9762e1c52a9127a38d1e

Aliases

arxiv: 0905.0496 · arxiv_version: 0905.0496v3 · doi: 10.48550/arxiv.0905.0496 · pith_short_12: APEHZOOJ3HNA · pith_short_16: APEHZOOJ3HNARBHO · pith_short_8: APEHZOOJ

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/APEHZOOJ3HNARBHOR4MO5TZ3PZ \
  | 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: 03c87cb9c9d9da0884ee8f18eecf3b7e64c373ef76db9762e1c52a9127a38d1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48bb2b0ea08e2698a9c09faf15743cedbb0d5f5f9bf9d3e5dbd344bd989231e5",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-05-04T21:22:34Z",
    "title_canon_sha256": "114fdc3e3c15b2769de416fd13b7e821854d4c3512b1f5f066e1d1e944f0ec45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.0496",
    "kind": "arxiv",
    "version": 3
  }
}