Pith Number

pith:FDXMAGAY

pith:2025:FDXMAGAYINBUIKVUDWTEHDNUZU

not attested not anchored not stored refs pending

Variable X-ray reverberation in the rapidly accreting AGN Ark 564: the response of the soft excess to the changing geometry of the inner accretion flow

Dan Wilkins, Steven W. Allen, Zhefu Yu

arxiv:2507.16902 v1 · 2025-07-22 · 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{FDXMAGAYINBUIKVUDWTEHDNUZU}

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	2026-07-05T11:41:57.998279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28eec018184343442ab41da6438db4cd36c977d39a8e7796ffc2766846b704e2

Aliases

arxiv: 2507.16902 · arxiv_version: 2507.16902v1 · doi: 10.48550/arxiv.2507.16902 · pith_short_12: FDXMAGAYINBU · pith_short_16: FDXMAGAYINBUIKVU · pith_short_8: FDXMAGAY

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/FDXMAGAYINBUIKVUDWTEHDNUZU \
  | 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: 28eec018184343442ab41da6438db4cd36c977d39a8e7796ffc2766846b704e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3799d098256bec1916ee63605eefa8f4f4062f97c0fa50aad1e7860b390bbe1",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-07-22T18:00:02Z",
    "title_canon_sha256": "68b160eae96ad7f73b37cac8ca3fc06cac19e53942db0999929e6ab60ccf30a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.16902",
    "kind": "arxiv",
    "version": 1
  }
}