Pith Number

pith:HUFM3F53

pith:2019:HUFM3F53O527U6PAOACMCJXCZG

not attested not anchored not stored refs pending

Piercing Through Highly Obscured and Compton-thick AGNs in the Chandra Deep Fields: I. X-ray Spectral and Long-term Variability Analyses

Bin Luo, Chien-Ting Chen, Cristian Vignali, Fabio Vito, Guang Yang, Junyao Li, Mouyuan Sun, Paolo Tozzi, Roberto Gilli, Shifu Zhu, Teng Liu, Thomas M. Hughes, William N. Brandt, Xinwen Shu, Xuechen Zheng, Yongquan Xue

arxiv:1904.03827 v1 · 2019-04-08 · 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{HUFM3F53O527U6PAOACMCJXCZG}

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	2026-05-17T23:44:54.579482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d0acd97bb7775fa79e07004c126e2c981e996a11f02bc6bb21109bb69541c31

Aliases

arxiv: 1904.03827 · arxiv_version: 1904.03827v1 · doi: 10.48550/arxiv.1904.03827 · pith_short_12: HUFM3F53O527 · pith_short_16: HUFM3F53O527U6PA · pith_short_8: HUFM3F53

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/HUFM3F53O527U6PAOACMCJXCZG \
  | 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: 3d0acd97bb7775fa79e07004c126e2c981e996a11f02bc6bb21109bb69541c31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4405cbd15b59147885adda6035895f4c17ad16d9e22b7a9a2742338a28f3d770",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-04-08T04:08:37Z",
    "title_canon_sha256": "370f72f769695124bca4d231be2165e266ba9a86c7740af93a1c2abb7411bd9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03827",
    "kind": "arxiv",
    "version": 1
  }
}