Pith Number

pith:UKXLXQLK

pith:2026:UKXLXQLKMVIAHEJNR4OO7OZ2ZO

not attested not anchored not stored refs pending

Time-evolving Diagnostic of the Ionized Absorbers in NGC 4051. II. High-throughput Time-resolved Spectroscopy

Alfredo Luminari, Elias Kammoun, Fabrizio Nicastro, Francesca Diaferia, Luigi Piro, Riccardo Middei, Roberto Serafinelli, Yair Krongold

arxiv:2607.20621 v1 · 2026-07-22 · 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{UKXLXQLKMVIAHEJNR4OO7OZ2ZO}

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	2026-07-24T00:23:26.026357Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2aebbc16a655003912d8f1cefbb3acb8a109b16b7b175599f1ed9db16ceb255

Aliases

arxiv: 2607.20621 · arxiv_version: 2607.20621v1 · doi: 10.48550/arxiv.2607.20621 · pith_short_12: UKXLXQLKMVIA · pith_short_16: UKXLXQLKMVIAHEJN · pith_short_8: UKXLXQLK

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/UKXLXQLKMVIAHEJNR4OO7OZ2ZO \
  | 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: a2aebbc16a655003912d8f1cefbb3acb8a109b16b7b175599f1ed9db16ceb255

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7222899d6c1d61acef93697b1100574397b9208d814a656c3b1392d12e13b362",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-07-22T18:00:03Z",
    "title_canon_sha256": "a2e2b70de0d7a38ab23c625724a005086f8e24bc0acdf4f0ac350251c5085bec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.20621",
    "kind": "arxiv",
    "version": 1
  }
}