Pith Number

pith:VDKSM4CI

pith:2012:VDKSM4CIYVYJWHUZC3QZFWJDLR

not attested not anchored not stored refs pending

The characterization of the distant blazar GB6 J1239+0443 from flaring and low activity periods

(10) Istituto Nazionale di Fisica Nucleare, (11) INAF-IASF Palermo, (12) INAF/IASF-Milano, 13, 13), (13) Dip. di Fisica, (14) Agenzia Spaziale Italiana, (15) ENEA Frascati, (16) INFN-Pavia, (17) INAF-OAR, 18), (18) School of Physics, (20) Dip. Fisica, (21) ENEA-Bologna, (22) INFN-Roma La Sapienza, 23), (23) INFN Roma Tor Vergata, (24) Dip. di Fisica, (2) Marie Curie Fellow, (3) NASA Postdoctoral Program fellow at the Jet Propulsion Laboratory, (4) Department of Physical Science, (5) Hiroshima Astrophysical Science Center, (6) Centro de Astrobiolog\'ia (INTA-CSIC). Spain, (7) ASI Science Data Center, 8), (8) INAF-OAC, (9) Dip. Fisica, A. Argan (1), A. Bulgarelli (14), A. Domingo (6), A. Ferrari (20), A. Giuliani (12), A. Morselli (23), A. Pellizzoni (8), A. Rappoldi (16), A. Rubini (1), A. Tarchi (8), A. Trois (8), A. W. Chen (12), California Institute of Technology, C. Labanti (19), Copenhagen, C. Pittori (7), Dark Cosmology Center, Denmark, D. Zanello (22), E. Costa (1), E. Del Monte (1), E. Morelli (19), E. Moretti (9), E. Striani (1), E. Vallazza (9), F. Fuschino (19), F. Gianotti (19), F. Lazzarotto (1), F. Longo (9), F. Lucarelli (7), F. Perotti (12), F. Verrecchia (7), G. Barbiellini (9), G. De Paris (1), G. Di Cocco (19), G. Piano (1, G. Pucella (15), G. Valentini (14) ((1) INAF/IAPS, Hiroshima University, I. Donnarumma (1), I. Lapshov (1), INFN Trieste, Italy, Italy), Japan, K. D. Denney (2), localita' Poggio dei Pini, L. Pacciani (1), L. Salotti (14), M. Feroci (1), M. Fiorini (12), M. Galli (21), M. Giusti (1), M. Marisaldi (19), M. Pilia (24, M. Prest (24), M. Rapisarda (15), M. Tavani (1, M. Trifoglio (19), M. Uemura (5), M. Yamanaka (4), Niels Bohr Institute, P. Caraveo (12), P. Giommi (7), P. Lipari (22), P. Picozza (13, P. Santolamazza (7), P. Soffitta (1), P. W. Cattaneo (16), R. J. Assef (3), S. Colafrancesco (17, Sezione di Bari, S. Mereghetti (12), South Africa (19) INAF/IASF-Bologna, S. Rain\'o (10), S. Sabatini (1), S. Vercellone (11), Univ. Dell'Insubria, Universit\'a di Torino, University of Copenhagen, University of the Witwatersrand, Univ. Tor Vergata, Univ Trieste, Via Fosso del Cavaliere, Viale Liegi, V. Vittorini (1, Y. Evangelista (1), Y. Ikejiri (4)

arxiv:1206.4454 v1 · 2012-06-20 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VDKSM4CIYVYJWHUZC3QZFWJDLR}

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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	2026-05-18T01:56:50.349546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8d5267048c5709b1e9916e192d9235c51119ef187cdb89f04e705b7ee953bd9

Aliases

arxiv: 1206.4454 · arxiv_version: 1206.4454v1 · doi: 10.48550/arxiv.1206.4454 · pith_short_12: VDKSM4CIYVYJ · pith_short_16: VDKSM4CIYVYJWHUZ · pith_short_8: VDKSM4CI

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/VDKSM4CIYVYJWHUZC3QZFWJDLR \
  | 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: a8d5267048c5709b1e9916e192d9235c51119ef187cdb89f04e705b7ee953bd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30ebd0ebbc9ac2069a7e90fb0aea126a5558e4e6243b2d3a0a863ca41bd9fb53",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-06-20T10:49:42Z",
    "title_canon_sha256": "273f06c185b1adc4c184ed778067cad934a0dde6d32e691bafc1b65bc9385464"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.4454",
    "kind": "arxiv",
    "version": 1
  }
}