Pith Number

pith:VAAJNNY6

pith:2002:VAAJNNY67DU6IWTB63XQYYQ3OA

not attested not anchored not stored refs pending

The Chandra Deep Field-North Survey. XVI. The X-ray properties of moderate-luminosity Active Galaxies at z>4

A.E. Hornschemeier (2), Baltimore, C. Vignali (1), D.M. Alexander (1), D.P. Schneider (1), F.E. Bauer (1), G.P. Garmire (1) ((1) Department of Astronomy & Astrophysics, Johns Hopkins University, The Pennsylvania State University, University Park, USA), USA; (2) Department of Physics & Astronomy, W.N. Brandt (1)

arxiv:astro-ph/0210552 v1 · 2002-10-24 · 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{VAAJNNY67DU6IWTB63XQYYQ3OA}

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	2026-07-04T16:31:02.269399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a80096b71ef8e9e45a61f6ef0c621b702934994d2f1cf651b3ca75bb062dcf92

Aliases

arxiv: astro-ph/0210552 · arxiv_version: astro-ph/0210552v1 · doi: 10.48550/arxiv.astro-ph/0210552 · pith_short_12: VAAJNNY67DU6 · pith_short_16: VAAJNNY67DU6IWTB · pith_short_8: VAAJNNY6

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/VAAJNNY67DU6IWTB63XQYYQ3OA \
  | 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: a80096b71ef8e9e45a61f6ef0c621b702934994d2f1cf651b3ca75bb062dcf92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd933e1ca22f7fceb4f78b67460484f82cf69a1c5847e421393e083b49f829ee",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-10-24T20:00:03Z",
    "title_canon_sha256": "31185d4624ae5e91ee8290f2ba4c4fa075e6c1b5aa30829885f26d5a1c0e3625"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0210552",
    "kind": "arxiv",
    "version": 1
  }
}