Pith Number

pith:Z4GCGW3Q

pith:2019:Z4GCGW3QX3R7ZS3JLJYPX23NQ5

not attested not anchored not stored refs pending

Does AGN Fraction Depend on Redshift or Luminosity? An Extinction-Free Test by 18-band Mid-infrared SED Fitting in the AKARI NEP Wide Field

Chia-Ying Chiang, Hideo Matsuhara, Nagisa Oi, Seong-jin Kim, Tetsuya Hashimoto, Tomotsugu Goto

arxiv:1902.02800 v1 · 2019-02-07 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z4GCGW3QX3R7ZS3JLJYPX23NQ5}

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	2026-05-17T23:50:55.733884Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf0c235b70bee3fccb695a70fbeb6d8776922664b74e998fb2328296a2dc3803

Aliases

arxiv: 1902.02800 · arxiv_version: 1902.02800v1 · doi: 10.48550/arxiv.1902.02800 · pith_short_12: Z4GCGW3QX3R7 · pith_short_16: Z4GCGW3QX3R7ZS3J · pith_short_8: Z4GCGW3Q

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/Z4GCGW3QX3R7ZS3JLJYPX23NQ5 \
  | 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: cf0c235b70bee3fccb695a70fbeb6d8776922664b74e998fb2328296a2dc3803

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26abff00c4434f4af0fba92fa65c091eadc7e5f74f6f140ed9401bb95616ab70",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-02-07T19:00:11Z",
    "title_canon_sha256": "7f7c54ce1c9acbb79f09f5fad2a9ba1c5b59252a3120de129aa1ea39248a6de8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02800",
    "kind": "arxiv",
    "version": 1
  }
}