Pith Number

pith:ZT2TB3HV

pith:2004:ZT2TB3HVD2GIGEFY6YB5HM7QSE

not attested not anchored not stored refs pending

Near Infrared Spectroscopy of High Redshift Active Galactic Nuclei. II. Disappearing Narrow Line Regions and the Role of Accretion

(2) INAF, (3) CGG & TNG, (4) AAO), E. Corbett (4), E. Oliva (3), H. Netzer (1), L. di Fabrizio (3) ((1) TAU, O. Shemmer (1), R. Maiolino (2), S. Croom (4)

arxiv:astro-ph/0406560 v1 · 2004-06-24 · 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{ZT2TB3HVD2GIGEFY6YB5HM7QSE}

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	2026-05-18T04:27:04.450048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccf530ecf51e8c8310b8f603d3b3f0910da91e0a140f8139224f9943dc37fae4

Aliases

arxiv: astro-ph/0406560 · arxiv_version: astro-ph/0406560v1 · doi: 10.48550/arxiv.astro-ph/0406560 · pith_short_12: ZT2TB3HVD2GI · pith_short_16: ZT2TB3HVD2GIGEFY · pith_short_8: ZT2TB3HV

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/ZT2TB3HVD2GIGEFY6YB5HM7QSE \
  | 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: ccf530ecf51e8c8310b8f603d3b3f0910da91e0a140f8139224f9943dc37fae4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad9bf312fe2d7eacfaf42d2e4efc7e16a2463e48978db5bce38a9a9e43378b27",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-06-24T20:05:16Z",
    "title_canon_sha256": "2fac336944eab3b2322f819c7cb8d23c33836ff892076f6dd2763bc743e27efa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0406560",
    "kind": "arxiv",
    "version": 1
  }
}