Pith Number

pith:XV7JYQ3G

pith:2013:XV7JYQ3GGOVJLROVFT576M3J2I

not attested not anchored not stored refs pending

Measurement of the beam-helicity asymmetry $I^{\odot}$ in the photoproduction of $\pi^0$-pairs off the proton and off the neutron

A. Braghieri, A. Fix, A. Kaeser, A. Kulbardis, A. Mushkarenkov, A. Nikolaev, A. Polonski, A. Starostin, A. Thomas, B. Demissie, B. Krusche, B.M.K. Nefkens, B. Oussena, D. Branford, D.G. Middleton, D. Hornidge, D. Howdle, D.I. Glazier, D.I. Sober, D. Mekterovic, D.M. Manley, D.P. Watts, D. Werthmueller, E. Heid, E.J. Downie, E. McNicoll, F. Pheron, F. Zehr, G.M. Huber, G. Rosner, H. Berghaeuser, H.J. Arends, I. Jaegle, I.J.D. MacGregor, I. Keshelashvili, I. Supek, J. Ahrens, J. Brudvik, J.C. McGeorge, J. Mancell, J.R.M. Annand, J. Robinson, K. Bantawa, K. Livingston, L.V. Fil'kov, L. Witthauer, M. Dieterle, M.H. Sikora, M. Korolija, M. Martinez, M. Oberle, M. Ostrick, M. Thiel, M. Unverzagt, O. Jahn, P.A. Bartolome, P. Drexler, P. Pedroni, R. Beck, R. Kondratiev, R. Novotny, S. Cherepnya, S. Micanovic, S.N. Prakhov, S.P. Kruglov, S. Schumann, T.C. Jude, T. Rostomyan, V. Bekrenev, V. Lisin, V.L. Kashevarov, V. Metag, W.J. Briscoe, Y. Maghrbi, Z. Marinides

arxiv:1304.1919 v1 · 2013-04-06 · nucl-ex

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XV7JYQ3GGOVJLROVFT576M3J2I}

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	2026-05-18T01:50:42.119147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd7e9c436633aa95c5d52cfbff3369d23658d8b28937132158b73003273c86d2

Aliases

arxiv: 1304.1919 · arxiv_version: 1304.1919v1 · doi: 10.48550/arxiv.1304.1919 · pith_short_12: XV7JYQ3GGOVJ · pith_short_16: XV7JYQ3GGOVJLROV · pith_short_8: XV7JYQ3G

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/XV7JYQ3GGOVJLROVFT576M3J2I \
  | 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: bd7e9c436633aa95c5d52cfbff3369d23658d8b28937132158b73003273c86d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3092822f830c8ea9a9dada12deebae3621399197a87f35c8d7527d24a9e108d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-ex",
    "submitted_at": "2013-04-06T17:49:07Z",
    "title_canon_sha256": "368f8425ee060430f018b224e60f62fe5414cb379629964a2643f58c960760a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1919",
    "kind": "arxiv",
    "version": 1
  }
}