Pith Number

pith:YCG6PT4K

pith:2005:YCG6PT4K2JBUSWAFSSCFZW5INO

not attested not anchored not stored refs pending

X-ray reflection in the Seyfert galaxy 1H0419-577 revealing strong relativistic effects in the vicinity of a Kerr black hole

A.C. Fabian (1), Cambridge; (2) College of the Holy Cross, G. Miniutti (1), K. Iwasawa (1), R.R. Ross (2) ((1) Institute of Astronomy, USA)

arxiv:astro-ph/0504472 v1 · 2005-04-21 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YCG6PT4K2JBUSWAFSSCFZW5INO}

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	2026-07-04T15:49:50.121602Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c08de7cf8ad24349580594845cdba86b8bd6a43155b782b98a1ab394f7ebde94

Aliases

arxiv: astro-ph/0504472 · arxiv_version: astro-ph/0504472v1 · doi: 10.48550/arxiv.astro-ph/0504472 · pith_short_12: YCG6PT4K2JBU · pith_short_16: YCG6PT4K2JBUSWAF · pith_short_8: YCG6PT4K

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/YCG6PT4K2JBUSWAFSSCFZW5INO \
  | 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: c08de7cf8ad24349580594845cdba86b8bd6a43155b782b98a1ab394f7ebde94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8e4a6b31faf312e81e5327f4f316c888bc2be11d68c2dd062e3f9846e581822",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-04-21T15:03:32Z",
    "title_canon_sha256": "5e9abf747924c5b2aaed98cebffe3b75a7bbc1b858f66c83ff091c02d66b5fe7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0504472",
    "kind": "arxiv",
    "version": 1
  }
}