Pith Number

pith:6KRCCBTZ

pith:2025:6KRCCBTZK2U2WGKJUNQARFXX37

not attested not anchored not stored refs pending

Identifying Compton-thick AGNs with Machine learning algorithm in Chandra Deep Field-South

Guanwen Fang, Hai-Cheng Feng, Hongtao Wang, Jun Xu, Nan Ding, Qiusheng Gu, Rui Li, Rui Zhang, Xiaotong Guo, Yongyun Chen

arxiv:2505.21105 v1 · 2025-05-27 · 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{6KRCCBTZK2U2WGKJUNQARFXX37}

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	2026-07-05T11:10:23.762860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2a221067956a9ab1949a3600896f7dfe576272e07347c0a9bbfcfa98ec846a8

Aliases

arxiv: 2505.21105 · arxiv_version: 2505.21105v1 · doi: 10.48550/arxiv.2505.21105 · pith_short_12: 6KRCCBTZK2U2 · pith_short_16: 6KRCCBTZK2U2WGKJ · pith_short_8: 6KRCCBTZ

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/6KRCCBTZK2U2WGKJUNQARFXX37 \
  | 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: f2a221067956a9ab1949a3600896f7dfe576272e07347c0a9bbfcfa98ec846a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "483e20f27a7727d5416230481c2bb0472dc22ce9ad62fd8d7663bd7fe4eff410",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-05-27T12:28:23Z",
    "title_canon_sha256": "f1456b5de8950b2e89c76c1f83f12cc8fb0ccf982d95fd0c9382b01e22b495e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.21105",
    "kind": "arxiv",
    "version": 1
  }
}