Pith Number

pith:RY6HSMDF

pith:2015:RY6HSMDF4MXAXTYSMUFCA4EJN5

not attested not anchored not stored refs pending

New blazars from the cross-match of recent multi-frequency catalogs

(2) Dipartimento di Fisica, 3), (3) Yale Center for Astronomy, (4) Harvard-Smithsonian Astrophysical Observatory, (5) Dipartimento di Fisica, 6) ((1) INAF-IASF Palermo, A. Maselli (1), A. Segreto (1), Astrophysics, Cambridge, F. Massaro (2, G. Cusumano (1), G. Tosti (5, Italy, Italy), Italy (6) INFN, New Haven, Physics Department, R. D'Abrusco (4), Sezione di Perugia, Universit\`a degli Studi di Perugia, Universit\`a degli Studi di Torino, USA, V. La Parola (1), Yale University

arxiv:1504.07236 v2 · 2015-04-27 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RY6HSMDF4MXAXTYSMUFCA4EJN5}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:17:14.003342Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e3c793065e32e0bcf12650a2070896f60cb65753c7b8675527a3733e992ee27

Aliases

arxiv: 1504.07236 · arxiv_version: 1504.07236v2 · doi: 10.48550/arxiv.1504.07236 · pith_short_12: RY6HSMDF4MXA · pith_short_16: RY6HSMDF4MXAXTYS · pith_short_8: RY6HSMDF

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/RY6HSMDF4MXAXTYSMUFCA4EJN5 \
  | 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: 8e3c793065e32e0bcf12650a2070896f60cb65753c7b8675527a3733e992ee27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe8024595404dc3327dc6ea9e3f071a51f5e91d6fae662ab85eca3cf36618694",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-04-27T20:00:27Z",
    "title_canon_sha256": "d094ffd30e04a46a75e4298855af89f46185f4824f93cd10b43c87cbbfcc8253"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07236",
    "kind": "arxiv",
    "version": 2
  }
}