Pith Number

pith:4RWHI3NO

pith:2018:4RWHI3NODPKL7MPDNZHWMU6FRV

not attested not anchored not stored refs pending

The mass-metallicity relation of high-z type-2 active galactic nuclei

Alessandro Marconi, Filippo Mannucci, Giovanni Cresci, Hiroyuki Ikeda, Kenta Matsuoka, Koki Terao, Roberto Maiolino, Tohru Nagao

arxiv:1807.09276 v1 · 2018-07-24 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4RWHI3NODPKL7MPDNZHWMU6FRV}

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	2026-05-18T00:07:40.055310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e46c746dae1bd4bfb1e36e4f6653c58d4164355cfdd3b0419882aa76cb1b3f56

Aliases

arxiv: 1807.09276 · arxiv_version: 1807.09276v1 · doi: 10.48550/arxiv.1807.09276 · pith_short_12: 4RWHI3NODPKL · pith_short_16: 4RWHI3NODPKL7MPD · pith_short_8: 4RWHI3NO

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/4RWHI3NODPKL7MPDNZHWMU6FRV \
  | 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: e46c746dae1bd4bfb1e36e4f6653c58d4164355cfdd3b0419882aa76cb1b3f56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "675fbcfe3620d09f34de35682c5b289da29b433eae9d3d8100d630d4673f9bdb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-24T18:00:01Z",
    "title_canon_sha256": "da5454678de03af344f42a5ea59ac340398f870788c3f4827a6f1fe83fb9e3ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09276",
    "kind": "arxiv",
    "version": 1
  }
}