Pith Number

pith:BNPCA4MM

pith:2006:BNPCA4MMIDFJRX6VS6MAQY7SDZ

not attested not anchored not stored refs pending

The spectral energy distribution of PKS 2004-447: a compact steep-spectrum source and possible radio-loud narrow-line Seyfert 1 galaxy

A. Oshlack, D. R. Lewis, E. Ferrero, J. Greenhill, J. Kataoka, L. C. Gallo, M. Whiting, P. G. Edwards, S. P. Ellingsen, Th. Boller, W. Brinkmann, W. F. Welsh, Z. Misanovic

arxiv:astro-ph/0604480 v1 · 2006-04-22 · 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{BNPCA4MMIDFJRX6VS6MAQY7SDZ}

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	2026-07-04T16:58:37.756346Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b5e20718c40ca98dfd597980863f21e42393cffdd7765b0f3b3791195b0401e

Aliases

arxiv: astro-ph/0604480 · arxiv_version: astro-ph/0604480v1 · doi: 10.48550/arxiv.astro-ph/0604480 · pith_short_12: BNPCA4MMIDFJ · pith_short_16: BNPCA4MMIDFJRX6V · pith_short_8: BNPCA4MM

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/BNPCA4MMIDFJRX6VS6MAQY7SDZ \
  | 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: 0b5e20718c40ca98dfd597980863f21e42393cffdd7765b0f3b3791195b0401e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31ba2124a962609415122869e109b7ff3ae695d8330c5b6c06a160ec605197e2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-04-22T06:45:55Z",
    "title_canon_sha256": "c872a040d90c513d03aa1aa1550d881d9545a0e329863a4d3519ce4ea8289596"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0604480",
    "kind": "arxiv",
    "version": 1
  }
}