Pith Number

pith:HQLDMQXL

pith:2021:HQLDMQXLLRF7HOT3BQ7GNJZVDJ

not attested not anchored not stored refs pending

Extended X-ray Emission in Compton Thick AGN with Deep Chandra Observations

A. Paggi, A. Siemiginowska, G. Fabbiano, J. Ma, J. Wang, K. Parker, Mackenzie L Jones (Center for Astrophysics | Harvard & Smithsonian), M. Elvis, M. Karovska, W. P. Maksym

arxiv:2101.11625 v1 · 2021-01-27 · 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{HQLDMQXLLRF7HOT3BQ7GNJZVDJ}

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	2026-07-05T02:27:40.313763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c163642eb5c4bf3ba7b0c3e66a7351a40b3ebe6044137fa60f2998e6e30b4f5

Aliases

arxiv: 2101.11625 · arxiv_version: 2101.11625v1 · doi: 10.48550/arxiv.2101.11625 · pith_short_12: HQLDMQXLLRF7 · pith_short_16: HQLDMQXLLRF7HOT3 · pith_short_8: HQLDMQXL

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/HQLDMQXLLRF7HOT3BQ7GNJZVDJ \
  | 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: 3c163642eb5c4bf3ba7b0c3e66a7351a40b3ebe6044137fa60f2998e6e30b4f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68f91770c9f1767154570d3ceef2e2b22f43d96b10b59afa9a7ad0c153b9c46b",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-01-27T19:00:02Z",
    "title_canon_sha256": "fde93b995c07118d12ddd7289f44ef9434e7546e4a88b4f19f92a4752c7f9dec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.11625",
    "kind": "arxiv",
    "version": 1
  }
}