Pith Number

pith:2U7IZDPQ

pith:2015:2U7IZDPQL4JVBG7B73RXVKTMOP

not attested not anchored not stored refs pending

Anatomy of the AGN in NGC 5548: III. The high-energy view with NuSTAR and INTEGRAL

B. De Marco, B. M. Peterson, D. J. Walton, E. Costantini, F. Harrison, F. Ursini, G. A. Kriss, G. Matt, G. Ponti, J. Kaastra, K. C. Steenbrugge, L. Di Gesu, M. Cappi, M. Mehdipour, P.-O. Petrucci, R. Boissay, S. Bianchi, S. Paltani

arxiv:1501.03426 v1 · 2015-01-14 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2U7IZDPQL4JVBG7B73RXVKTMOP}

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	2026-05-18T02:17:42.581856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d53e8c8df05f13509be1fee37aaa6c73d94bf2493e8d6fb164d121b7f12baab1

Aliases

arxiv: 1501.03426 · arxiv_version: 1501.03426v1 · doi: 10.48550/arxiv.1501.03426 · pith_short_12: 2U7IZDPQL4JV · pith_short_16: 2U7IZDPQL4JVBG7B · pith_short_8: 2U7IZDPQ

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/2U7IZDPQL4JVBG7B73RXVKTMOP \
  | 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: d53e8c8df05f13509be1fee37aaa6c73d94bf2493e8d6fb164d121b7f12baab1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fefc54c5998947baf4d05de9ffc034b4983b7c14843b842e4c53f9a9f1ef17b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-01-14T17:57:35Z",
    "title_canon_sha256": "c43543ddfe7aac48440a8d19ac72fd60366c8da0a7e2bcdebeeb6429db4250b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.03426",
    "kind": "arxiv",
    "version": 1
  }
}