Pith Number

pith:HNW2TOVE

pith:2019:HNW2TOVEEKKMZIZYFDWXFM6JQ7

not attested not anchored not stored refs pending

Nustar Measurement Of Coronal Temperature In Two Luminous, High Redshift Qsos

A. Comastri, A. Marinucci, C. Vignali, E. Piconcelli, F. Civano, F. Tombesi, G. Chartas, G. Lanzuisi, M. Brusa, M. Cappi, M. Dadina, M. Gaspari, R. Gilli, R. Middei, S. Bianchi, W. N. Brandt

arxiv:1904.04784 v1 · 2019-04-09 · 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{HNW2TOVEEKKMZIZYFDWXFM6JQ7}

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	2026-05-17T23:47:57.324364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b6da9baa42294cca33828ed72b3c987cbb29c7eb375cb0d67537517c45394ad

Aliases

arxiv: 1904.04784 · arxiv_version: 1904.04784v1 · doi: 10.48550/arxiv.1904.04784 · pith_short_12: HNW2TOVEEKKM · pith_short_16: HNW2TOVEEKKMZIZY · pith_short_8: HNW2TOVE

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/HNW2TOVEEKKMZIZYFDWXFM6JQ7 \
  | 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: 3b6da9baa42294cca33828ed72b3c987cbb29c7eb375cb0d67537517c45394ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e742f7e47a8c1615afed9013ec3b5a35ac022dea4403dcba89d2eb05d52075da",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-04-09T17:00:15Z",
    "title_canon_sha256": "887a664bdbf4b4c0ff9620e935a112d54ea47408fdd91a7ebf26fcfcd9865064"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04784",
    "kind": "arxiv",
    "version": 1
  }
}