Pith Number

pith:NXR4RMVK

pith:2017:NXR4RMVK5Z52MBREI6HLIVJDQ7

not attested not anchored not stored refs pending

AGN with discordant optical and X-ray classification are not a physical family: Diverse origin in two AGN

A. Caccianiga, A. Del Moro, F. J. Carrera, I. Ordov\'as-Pascual, K. Wiersema, P. Severgnini, R. Della Ceca, S. Mateos, V. Braito, X. Barcons

arxiv:1704.01595 v1 · 2017-04-05 · 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{NXR4RMVK5Z52MBREI6HLIVJDQ7}

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	2026-05-18T00:40:30.261669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6de3c8b2aaee7ba60624478eb4552387d59098011b060064816aa7d9578a4dc5

Aliases

arxiv: 1704.01595 · arxiv_version: 1704.01595v1 · doi: 10.48550/arxiv.1704.01595 · pith_short_12: NXR4RMVK5Z52 · pith_short_16: NXR4RMVK5Z52MBRE · pith_short_8: NXR4RMVK

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/NXR4RMVK5Z52MBREI6HLIVJDQ7 \
  | 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: 6de3c8b2aaee7ba60624478eb4552387d59098011b060064816aa7d9578a4dc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b26c8bf9ff2ab57104f3c126884d70c771a8f836d4d948e00c04e7ef5f7ae84a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-04-05T18:02:43Z",
    "title_canon_sha256": "2bb6b40b012ea3fa839e3e2e1aeac2537cc533eeef797df6a2f06d883dac203a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.01595",
    "kind": "arxiv",
    "version": 1
  }
}