{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:YGRCDTAIDPG72HY23PQ7PMPYM3","short_pith_number":"pith:YGRCDTAI","canonical_record":{"source":{"id":"1505.07963","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-05-29T09:11:48Z","cross_cats_sorted":["hep-ex","nucl-th"],"title_canon_sha256":"e6b0fde5c3aa1406684dcec4bafef03d1deb79cdad172bb677bf16502d014ad4","abstract_canon_sha256":"e868d1370de0dd64cb2ef7bf7eaf0225c3acbbeb7895bab3e6cd6181db4c20af"},"schema_version":"1.0"},"canonical_sha256":"c1a221cc081bcdfd1f1adbe1f7b1f866c329730c7732c7541feab378b77bda98","source":{"kind":"arxiv","id":"1505.07963","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.07963","created_at":"2026-05-18T01:49:55Z"},{"alias_kind":"arxiv_version","alias_value":"1505.07963v1","created_at":"2026-05-18T01:49:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.07963","created_at":"2026-05-18T01:49:55Z"},{"alias_kind":"pith_short_12","alias_value":"YGRCDTAIDPG7","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"YGRCDTAIDPG72HY2","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"YGRCDTAI","created_at":"2026-05-18T12:29:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:YGRCDTAIDPG72HY23PQ7PMPYM3","target":"record","payload":{"canonical_record":{"source":{"id":"1505.07963","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-05-29T09:11:48Z","cross_cats_sorted":["hep-ex","nucl-th"],"title_canon_sha256":"e6b0fde5c3aa1406684dcec4bafef03d1deb79cdad172bb677bf16502d014ad4","abstract_canon_sha256":"e868d1370de0dd64cb2ef7bf7eaf0225c3acbbeb7895bab3e6cd6181db4c20af"},"schema_version":"1.0"},"canonical_sha256":"c1a221cc081bcdfd1f1adbe1f7b1f866c329730c7732c7541feab378b77bda98","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:49:55.497228Z","signature_b64":"ODtKOYunsGPVfGWGjTVRY490k2CKpyMGkcI0Pf009AE/8co/VxIrrlii6fdmvGrZhTYFxfubEFRFyiL7PdvJCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c1a221cc081bcdfd1f1adbe1f7b1f866c329730c7732c7541feab378b77bda98","last_reissued_at":"2026-05-18T01:49:55.496774Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:49:55.496774Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1505.07963","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:49:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Wnf6JtjENy3qEwfbC2LptOQS2FGgTFUBlD4f7RWVEZbXJBsUPCcYlRL3Le/dxaZNth0JjAZFr2QZ2oAJFuLAAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:21:04.930579Z"},"content_sha256":"7f925f4887f10d95e7a5d321a4d007afcbdcb4287143c4e765522ba57a6308fb","schema_version":"1.0","event_id":"sha256:7f925f4887f10d95e7a5d321a4d007afcbdcb4287143c4e765522ba57a6308fb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:YGRCDTAIDPG72HY23PQ7PMPYM3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First measurement of target and beam-target asymmetries in the $\\gamma p\\to \\pi^0\\eta p$ reaction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-th"],"primary_cat":"nucl-ex","authors_text":"A. Braghieri, A. Fix, A. Lazarev, A. Mushkarenkov, A. Neganov, A. Nikolaev, A. Polonski, A. Sarty, A. Thomas, B. Krusche, B. Oussena, C. Collicott, D. Hamilton, D. Hornidge, D. Howdle, D. I. Glazier, D. Middleton, D. M. Manley, D. P. Watts, D. Werthm\\\"uller, E. F. McNicoll, E. J. Downie, G. Gurevich, G. M. Huber, G. Reicherz, H. J. Arends, H. Ortega, I. I. Strakovsky, I. J. D. MacGregor, I. Keshelashvili, I. Supek, J. Mancel, J. R. M. Annand, K. Livingston, L. Tiator, L. V. Fil'kov, L. Witthauer, M. Dieterle, M. Korolija, M. Oberle, M. Ostrick, M. Unverzagt, M. Wolfes, N. Borisov, O. Steffen, P. B. Otte, P. H. Barrientos, P. Martel, P. Ott, P. Pedroni, R. Beck, R. Kondratiev, R. Miskimen, S. Cherepnya, S. Costanza, S. Garni, S. Prakhov, S. Schumann, T. Rostomyan, T. Strub, V. Lisin, V. L. Kashevarov, V. V. Polyanski, W. Gradl, W. J. Briscoe, W. Meyer, Y. A. Usov","submitted_at":"2015-05-29T09:11:48Z","abstract_excerpt":"The first data on target and beam-target asymmetries for the $\\gamma p\\to\\pi^0\\eta p$ reaction at photon energies from 1050 up to 1450 MeV are presented. The measurements were performed using the Crystal Ball and TAPS detector setup at the Glasgow tagged photon facility of the Mainz Microtron MAMI. The general assumption that the reaction is dominated by the $\\Delta 3/2^-$ amplitude is confirmed. The data are in particular sensitive to small contributions from other partial waves."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.07963","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:49:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jdBKHrNwmKtmkLt1D84GlzPQF9hs50+DOnQ/QhtNGaD06aJmgoQNDij2hd0VN1a0lmEqe3Y2OxGc0u56fWCwCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:21:04.930956Z"},"content_sha256":"d7b13521856df60324a3f1cb4318fc14045e071c52d61eb7e12abc0c0310263b","schema_version":"1.0","event_id":"sha256:d7b13521856df60324a3f1cb4318fc14045e071c52d61eb7e12abc0c0310263b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YGRCDTAIDPG72HY23PQ7PMPYM3/bundle.json","state_url":"https://pith.science/pith/YGRCDTAIDPG72HY23PQ7PMPYM3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YGRCDTAIDPG72HY23PQ7PMPYM3/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-25T21:21:04Z","links":{"resolver":"https://pith.science/pith/YGRCDTAIDPG72HY23PQ7PMPYM3","bundle":"https://pith.science/pith/YGRCDTAIDPG72HY23PQ7PMPYM3/bundle.json","state":"https://pith.science/pith/YGRCDTAIDPG72HY23PQ7PMPYM3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YGRCDTAIDPG72HY23PQ7PMPYM3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:YGRCDTAIDPG72HY23PQ7PMPYM3","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"e868d1370de0dd64cb2ef7bf7eaf0225c3acbbeb7895bab3e6cd6181db4c20af","cross_cats_sorted":["hep-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-05-29T09:11:48Z","title_canon_sha256":"e6b0fde5c3aa1406684dcec4bafef03d1deb79cdad172bb677bf16502d014ad4"},"schema_version":"1.0","source":{"id":"1505.07963","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.07963","created_at":"2026-05-18T01:49:55Z"},{"alias_kind":"arxiv_version","alias_value":"1505.07963v1","created_at":"2026-05-18T01:49:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.07963","created_at":"2026-05-18T01:49:55Z"},{"alias_kind":"pith_short_12","alias_value":"YGRCDTAIDPG7","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"YGRCDTAIDPG72HY2","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"YGRCDTAI","created_at":"2026-05-18T12:29:50Z"}],"graph_snapshots":[{"event_id":"sha256:d7b13521856df60324a3f1cb4318fc14045e071c52d61eb7e12abc0c0310263b","target":"graph","created_at":"2026-05-18T01:49:55Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"The first data on target and beam-target asymmetries for the $\\gamma p\\to\\pi^0\\eta p$ reaction at photon energies from 1050 up to 1450 MeV are presented. The measurements were performed using the Crystal Ball and TAPS detector setup at the Glasgow tagged photon facility of the Mainz Microtron MAMI. The general assumption that the reaction is dominated by the $\\Delta 3/2^-$ amplitude is confirmed. The data are in particular sensitive to small contributions from other partial waves.","authors_text":"A. Braghieri, A. Fix, A. Lazarev, A. Mushkarenkov, A. Neganov, A. Nikolaev, A. Polonski, A. Sarty, A. Thomas, B. Krusche, B. Oussena, C. Collicott, D. Hamilton, D. Hornidge, D. Howdle, D. I. Glazier, D. Middleton, D. M. Manley, D. P. Watts, D. Werthm\\\"uller, E. F. McNicoll, E. J. Downie, G. Gurevich, G. M. Huber, G. Reicherz, H. J. Arends, H. Ortega, I. I. Strakovsky, I. J. D. MacGregor, I. Keshelashvili, I. Supek, J. Mancel, J. R. M. Annand, K. Livingston, L. Tiator, L. V. Fil'kov, L. Witthauer, M. Dieterle, M. Korolija, M. Oberle, M. Ostrick, M. Unverzagt, M. Wolfes, N. Borisov, O. Steffen, P. B. Otte, P. H. Barrientos, P. Martel, P. Ott, P. Pedroni, R. Beck, R. Kondratiev, R. Miskimen, S. Cherepnya, S. Costanza, S. Garni, S. Prakhov, S. Schumann, T. Rostomyan, T. Strub, V. Lisin, V. L. Kashevarov, V. V. Polyanski, W. Gradl, W. J. Briscoe, W. Meyer, Y. A. Usov","cross_cats":["hep-ex","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-05-29T09:11:48Z","title":"First measurement of target and beam-target asymmetries in the $\\gamma p\\to \\pi^0\\eta p$ reaction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.07963","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:7f925f4887f10d95e7a5d321a4d007afcbdcb4287143c4e765522ba57a6308fb","target":"record","created_at":"2026-05-18T01:49:55Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"e868d1370de0dd64cb2ef7bf7eaf0225c3acbbeb7895bab3e6cd6181db4c20af","cross_cats_sorted":["hep-ex","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2015-05-29T09:11:48Z","title_canon_sha256":"e6b0fde5c3aa1406684dcec4bafef03d1deb79cdad172bb677bf16502d014ad4"},"schema_version":"1.0","source":{"id":"1505.07963","kind":"arxiv","version":1}},"canonical_sha256":"c1a221cc081bcdfd1f1adbe1f7b1f866c329730c7732c7541feab378b77bda98","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c1a221cc081bcdfd1f1adbe1f7b1f866c329730c7732c7541feab378b77bda98","first_computed_at":"2026-05-18T01:49:55.496774Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:55.496774Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ODtKOYunsGPVfGWGjTVRY490k2CKpyMGkcI0Pf009AE/8co/VxIrrlii6fdmvGrZhTYFxfubEFRFyiL7PdvJCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:55.497228Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.07963","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7f925f4887f10d95e7a5d321a4d007afcbdcb4287143c4e765522ba57a6308fb","sha256:d7b13521856df60324a3f1cb4318fc14045e071c52d61eb7e12abc0c0310263b"],"state_sha256":"f2c4596dc849292f458804c84ddbc8082e2cbf6fb837fb5392804773a9103db3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E88FgbVvr4/L16LrpJqC0browizKsAqT6DyFeahQa6WFOvbudHpGMRnHhFYzKVGJRtTrYcfEdFYsUwMsMGciCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T21:21:04.933480Z","bundle_sha256":"1624324eea9740abaab08cbf06f35c70dba3efb095f3f61344888242b1f996d8"}}