Pith Number

pith:GACHD4JX

pith:2026:GACHD4JXD7AAF2JUFFB2ANAHSV

not attested not anchored not stored refs pending

The Extreme Rarity and Physical Properties of Low-redshift AGNs with Balmer Absorption

Chang-Hao Chen, Chengzhou Wu, Jinyi Shangguan, Jiwei Liao, Kohei Inayoshi, Linhua Jiang, Luis C. Ho, Ruancun Li, Yanqing Liu

arxiv:2606.04712 v1 · 2026-06-03 · 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{GACHD4JXD7AAF2JUFFB2ANAHSV}

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	2026-06-04T01:09:26.243583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

300471f1371fc002e9342943a0340795795935f510d34b0b0a2a92bd31613237

Aliases

arxiv: 2606.04712 · arxiv_version: 2606.04712v1 · doi: 10.48550/arxiv.2606.04712 · pith_short_12: GACHD4JXD7AA · pith_short_16: GACHD4JXD7AAF2JU · pith_short_8: GACHD4JX

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/GACHD4JXD7AAF2JUFFB2ANAHSV \
  | 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: 300471f1371fc002e9342943a0340795795935f510d34b0b0a2a92bd31613237

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64faf527049ed456598dbfb8983c03d6310d8ea2e50d4f3f4ba065b946e9a072",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-06-03T10:46:04Z",
    "title_canon_sha256": "f232d1de71a97824e4931639bfe3392ffd67860a42e42233ebdae9c2e4899be6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.04712",
    "kind": "arxiv",
    "version": 1
  }
}