Pith Number

pith:SPJ42355

pith:2020:SPJ42355YD2PUAU6T36MMY6BZS

not attested not anchored not stored refs pending

X-raying winds in distant quasars: the first high-redshift wind duty cycle

B. De Marco, C. Vignali, E. Bertola, E. Torresi, G. Chartas, G. Lanzuisi, M. Cappi, M. Dadina, M. Giustini

arxiv:2004.13054 v1 · 2020-04-27 · astro-ph.HE · 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{SPJ42355YD2PUAU6T36MMY6BZS}

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	2026-07-05T01:15:17.950795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93d3cd6fbdc0f4fa029e9efcc663c1cc9aabe3d059eee76fb1a322f14584830e

Aliases

arxiv: 2004.13054 · arxiv_version: 2004.13054v1 · doi: 10.48550/arxiv.2004.13054 · pith_short_12: SPJ42355YD2P · pith_short_16: SPJ42355YD2PUAU6 · pith_short_8: SPJ42355

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/SPJ42355YD2PUAU6T36MMY6BZS \
  | 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: 93d3cd6fbdc0f4fa029e9efcc663c1cc9aabe3d059eee76fb1a322f14584830e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b19903d9c578de285674507b8b6341b1005e57420326d3916bbe5b68224e033d",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-04-27T18:00:14Z",
    "title_canon_sha256": "207df94ffa544938c1f335247372f509cbd1248aa56fe017d99a73740d4fd3f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.13054",
    "kind": "arxiv",
    "version": 1
  }
}