Pith Number

pith:3DEBXCHN

pith:2009:3DEBXCHNZQFTDGPPR64JWHKWKB

not attested not anchored not stored refs pending

The evolution of the hard X-ray luminosity function of AGN

A. Georgakakis, A. L. Coil, A. M. Koekemoer, C. C. Steidel, C. N. A. Willmer, E. S. Laird, J. Aird, J.-S. Huang, K. Nandra, M. L. N. Ashby, P. Barmby

arxiv:0910.1141 v1 · 2009-10-07 · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3DEBXCHNZQFTDGPPR64JWHKWKB}

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	2026-05-18T02:11:26.008713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8c81b88edcc0b3199ef8fb89b1d565053c632c63313b570d08619ed4579773d

Aliases

arxiv: 0910.1141 · arxiv_version: 0910.1141v1 · doi: 10.48550/arxiv.0910.1141 · pith_short_12: 3DEBXCHNZQFT · pith_short_16: 3DEBXCHNZQFTDGPP · pith_short_8: 3DEBXCHN

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/3DEBXCHNZQFTDGPPR64JWHKWKB \
  | 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: d8c81b88edcc0b3199ef8fb89b1d565053c632c63313b570d08619ed4579773d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f0e9ad60f7d7dc56ad5321e1f29230cd1901659066f003d630fe6f0a45c3221",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-07T00:48:00Z",
    "title_canon_sha256": "ba06c0653b27f48af32cda4931eaf317ccb5057a288f35daa9d8a937546a8e43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.1141",
    "kind": "arxiv",
    "version": 1
  }
}