Pith Number

pith:7Z4JUSBY

pith:2017:7Z4JUSBYZYK3ZECCV42MWMCOKN

not attested not anchored not stored refs pending

AGN luminosity and stellar age -- two missing ingredients for AGN unification as seen with iPTF supernovae

Anders Nyholm, Andreas Korn, Beatriz Villarroel, Erik Zackrisson, Jesper Sollerman, S\'ebastien Comer\'on, Torgny Karlsson

arxiv:1701.08647 v1 · 2017-01-30 · astro-ph.GA · 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{7Z4JUSBYZYK3ZECCV42MWMCOKN}

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	2026-05-18T00:48:46.672673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe789a4838ce15bc9042af34cb304e53441f83996b6f06ee68f24c45a6764f45

Aliases

arxiv: 1701.08647 · arxiv_version: 1701.08647v1 · doi: 10.48550/arxiv.1701.08647 · pith_short_12: 7Z4JUSBYZYK3 · pith_short_16: 7Z4JUSBYZYK3ZECC · pith_short_8: 7Z4JUSBY

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/7Z4JUSBYZYK3ZECCV42MWMCOKN \
  | 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: fe789a4838ce15bc9042af34cb304e53441f83996b6f06ee68f24c45a6764f45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "941efd935c7a759c38318f1b5c1b2098cfcfc402f9a90f461fff98871cbe03a8",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-01-30T15:21:16Z",
    "title_canon_sha256": "81a329beb102ec2204eaeeea206eaed9fe5a7d8413cc63154e047775264554fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.08647",
    "kind": "arxiv",
    "version": 1
  }
}