Pith Number

pith:C7J7DWR3

pith:2025:C7J7DWR3YNKZ4ZTUYQGJBDSLUN

not attested not anchored not stored refs pending

Swift-XRT and NuSTAR Monitoring of Obscuration Variability in Mrk 477

A. Pizzetti, I. Cox, I. Pal, M. Ajello, N. Torres-Alb\`a, R. Silver, S. Marchesi, X. Zhao, Z. Hu

arxiv:2502.09759 v1 · 2025-02-13 · 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{C7J7DWR3YNKZ4ZTUYQGJBDSLUN}

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	2026-07-05T10:14:11.714441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17d3f1da3bc3559e6674c40c908e4ba343dc314a34c3745665376788a957afe6

Aliases

arxiv: 2502.09759 · arxiv_version: 2502.09759v1 · doi: 10.48550/arxiv.2502.09759 · pith_short_12: C7J7DWR3YNKZ · pith_short_16: C7J7DWR3YNKZ4ZTU · pith_short_8: C7J7DWR3

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/C7J7DWR3YNKZ4ZTUYQGJBDSLUN \
  | 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: 17d3f1da3bc3559e6674c40c908e4ba343dc314a34c3745665376788a957afe6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "521304e05bc6dfcce1f6dfce14b1e468860c32fe602101a1be7de85e1adaeff4",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-02-13T20:35:51Z",
    "title_canon_sha256": "6095c1cbd20354e6c1689d28fce0ff67636d4369ceb1cce0accbd2889acc7a7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.09759",
    "kind": "arxiv",
    "version": 1
  }
}