{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:LBP4ILKK54WRV4FNDEZHRBX33J","short_pith_number":"pith:LBP4ILKK","canonical_record":{"source":{"id":"1601.06565","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2016-01-25T11:41:14Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"dc8d341273fac99ef1a101690b6e9ef9df3bc158750c33d419c837565cede444","abstract_canon_sha256":"6abc6d4c3a0bc2fceaf85694b676aaa077c21a255b239f0fbac679b1cdc1591d"},"schema_version":"1.0"},"canonical_sha256":"585fc42d4aef2d1af0ad19327886fbda4ac6ca172e6c10d056df5dadfc48c738","source":{"kind":"arxiv","id":"1601.06565","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.06565","created_at":"2026-05-18T01:12:59Z"},{"alias_kind":"arxiv_version","alias_value":"1601.06565v2","created_at":"2026-05-18T01:12:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.06565","created_at":"2026-05-18T01:12:59Z"},{"alias_kind":"pith_short_12","alias_value":"LBP4ILKK54WR","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LBP4ILKK54WRV4FN","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LBP4ILKK","created_at":"2026-05-18T12:30:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:LBP4ILKK54WRV4FNDEZHRBX33J","target":"record","payload":{"canonical_record":{"source":{"id":"1601.06565","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2016-01-25T11:41:14Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"dc8d341273fac99ef1a101690b6e9ef9df3bc158750c33d419c837565cede444","abstract_canon_sha256":"6abc6d4c3a0bc2fceaf85694b676aaa077c21a255b239f0fbac679b1cdc1591d"},"schema_version":"1.0"},"canonical_sha256":"585fc42d4aef2d1af0ad19327886fbda4ac6ca172e6c10d056df5dadfc48c738","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:12:59.630795Z","signature_b64":"vpPsivugcKJHXNwMAx6HRsYFdNT/cuxM9tSAQ0Hpt16PHM7lJHPWXVDeDN6JbZPOI+ttCX3xgf6D2qYkWT8vAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"585fc42d4aef2d1af0ad19327886fbda4ac6ca172e6c10d056df5dadfc48c738","last_reissued_at":"2026-05-18T01:12:59.630422Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:12:59.630422Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1601.06565","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:12:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wuL7flP5h+61ue6nS2NX0Aptgnp3DOBpm9t+oDMXyWdfX2gYq3xTm8hFuXvoW0XBj8rWhVIALsCEe9ATYdBUCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T23:26:38.527839Z"},"content_sha256":"af847b0c03ddbf8f2b1640e76b4279e51162c2651da75fe79826a140added977","schema_version":"1.0","event_id":"sha256:af847b0c03ddbf8f2b1640e76b4279e51162c2651da75fe79826a140added977"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:LBP4ILKK54WRV4FNDEZHRBX33J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measurement of the $\\phi \\to \\pi^0 e^+e^-$ transition form factor with the KLOE detector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-ex","authors_text":"A. Budano, A. De Santis, A. Di Cicco, A. Di Domenico, A. d'Uffizi, A. Fantini, A. Gajos, A. Kupsc, A. Passeri, A. Ranieri, B. Cao, C. Bloise, D. Babusci, D. Domenici, D. Kami\\'nska, D. Moricciani, E. Czerwi\\'nski, E. Dan\\`e, E. De Lucia, E. Graziani, E. Perez del Rio, F. Bossi, F. Ceradini, F. Curciarello, F. Happacher, F. Sirghi, G. Bencivenni, G. D'Agostini, G. Felici, G. Giardina, G. Mandaglio, G. Morello, G. Venanzoni, I. Sarra, KLOE-2 Collaboration: A. Anastasi, L. Caldeira Balkest{\\aa}hl, L. Heijkenskj\\\"old, L. Tortora, M. Berlowski, M. Martini, M. Mascolo, M. Papenbrock, M. Schioppa, M. Silarski, M. Wolke, P. Branchini, P. Ciambrone, P. De Simone, P. Gauzzi, P. Moskal, P. Salabura P. Santangelo, R. Di Salvo, R. Messi, S. Fiore, S. Giovannella, S. Loffredo, S. Miscetti, T. Johansson, V. De Leo, V. Patera, W. Ikegami Andersson, W. Krzemien, W. Wi\\'slicki","submitted_at":"2016-01-25T11:41:14Z","abstract_excerpt":"A measurement of the vector to pseudoscalar conversion decay $\\phi \\to \\pi^0 e^+e^-$ with the KLOE experiment is presented. A sample of $\\sim 9500$ signal events was selected from a data set of 1.7 fb$^{-1}$ of $e^+e^-$ collisions at $\\sqrt{s} \\sim m_{\\phi}$ collected at the DA$\\Phi$NE $e^+e^-$ collider. These events were used to obtain the first measurement of the transition form factor $| F_{\\phi \\pi^0}(q^2) |$ and a new measurement of the branching ratio of the decay: $\\rm{BR}\\,(\\phi \\to \\pi^0 e^+e^-) = (\\,1.35 \\pm 0.05^{\\,\\,+0.05}_{\\,\\,-0.10}\\,) \\times 10 ^{-5}$. The result improves signif"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.06565","kind":"arxiv","version":2},"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":"2026-05-18T01:12:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wa1kYU6gVsQebfBswMxL0awhFll+8/9bJIx79hPZ2Esma8s/3afNsQVZVGG+EGkAHmuTpokpvpwloNMgp1WkDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T23:26:38.528505Z"},"content_sha256":"e68b21bad6f7117bd89e011ce2512f36b9decf94c03e91998ab783f1b32c9e71","schema_version":"1.0","event_id":"sha256:e68b21bad6f7117bd89e011ce2512f36b9decf94c03e91998ab783f1b32c9e71"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LBP4ILKK54WRV4FNDEZHRBX33J/bundle.json","state_url":"https://pith.science/pith/LBP4ILKK54WRV4FNDEZHRBX33J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LBP4ILKK54WRV4FNDEZHRBX33J/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":"2026-05-27T23:26:38Z","links":{"resolver":"https://pith.science/pith/LBP4ILKK54WRV4FNDEZHRBX33J","bundle":"https://pith.science/pith/LBP4ILKK54WRV4FNDEZHRBX33J/bundle.json","state":"https://pith.science/pith/LBP4ILKK54WRV4FNDEZHRBX33J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LBP4ILKK54WRV4FNDEZHRBX33J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:LBP4ILKK54WRV4FNDEZHRBX33J","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":"6abc6d4c3a0bc2fceaf85694b676aaa077c21a255b239f0fbac679b1cdc1591d","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2016-01-25T11:41:14Z","title_canon_sha256":"dc8d341273fac99ef1a101690b6e9ef9df3bc158750c33d419c837565cede444"},"schema_version":"1.0","source":{"id":"1601.06565","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1601.06565","created_at":"2026-05-18T01:12:59Z"},{"alias_kind":"arxiv_version","alias_value":"1601.06565v2","created_at":"2026-05-18T01:12:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1601.06565","created_at":"2026-05-18T01:12:59Z"},{"alias_kind":"pith_short_12","alias_value":"LBP4ILKK54WR","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LBP4ILKK54WRV4FN","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LBP4ILKK","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:e68b21bad6f7117bd89e011ce2512f36b9decf94c03e91998ab783f1b32c9e71","target":"graph","created_at":"2026-05-18T01:12:59Z","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":"A measurement of the vector to pseudoscalar conversion decay $\\phi \\to \\pi^0 e^+e^-$ with the KLOE experiment is presented. A sample of $\\sim 9500$ signal events was selected from a data set of 1.7 fb$^{-1}$ of $e^+e^-$ collisions at $\\sqrt{s} \\sim m_{\\phi}$ collected at the DA$\\Phi$NE $e^+e^-$ collider. These events were used to obtain the first measurement of the transition form factor $| F_{\\phi \\pi^0}(q^2) |$ and a new measurement of the branching ratio of the decay: $\\rm{BR}\\,(\\phi \\to \\pi^0 e^+e^-) = (\\,1.35 \\pm 0.05^{\\,\\,+0.05}_{\\,\\,-0.10}\\,) \\times 10 ^{-5}$. The result improves signif","authors_text":"A. Budano, A. De Santis, A. Di Cicco, A. Di Domenico, A. d'Uffizi, A. Fantini, A. Gajos, A. Kupsc, A. Passeri, A. Ranieri, B. Cao, C. Bloise, D. Babusci, D. Domenici, D. Kami\\'nska, D. Moricciani, E. Czerwi\\'nski, E. Dan\\`e, E. De Lucia, E. Graziani, E. Perez del Rio, F. Bossi, F. Ceradini, F. Curciarello, F. Happacher, F. Sirghi, G. Bencivenni, G. D'Agostini, G. Felici, G. Giardina, G. Mandaglio, G. Morello, G. Venanzoni, I. Sarra, KLOE-2 Collaboration: A. Anastasi, L. Caldeira Balkest{\\aa}hl, L. Heijkenskj\\\"old, L. Tortora, M. Berlowski, M. Martini, M. Mascolo, M. Papenbrock, M. Schioppa, M. Silarski, M. Wolke, P. Branchini, P. Ciambrone, P. De Simone, P. Gauzzi, P. Moskal, P. Salabura P. Santangelo, R. Di Salvo, R. Messi, S. Fiore, S. Giovannella, S. Loffredo, S. Miscetti, T. Johansson, V. De Leo, V. Patera, W. Ikegami Andersson, W. Krzemien, W. Wi\\'slicki","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2016-01-25T11:41:14Z","title":"Measurement of the $\\phi \\to \\pi^0 e^+e^-$ transition form factor with the KLOE detector"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.06565","kind":"arxiv","version":2},"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:af847b0c03ddbf8f2b1640e76b4279e51162c2651da75fe79826a140added977","target":"record","created_at":"2026-05-18T01:12:59Z","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":"6abc6d4c3a0bc2fceaf85694b676aaa077c21a255b239f0fbac679b1cdc1591d","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2016-01-25T11:41:14Z","title_canon_sha256":"dc8d341273fac99ef1a101690b6e9ef9df3bc158750c33d419c837565cede444"},"schema_version":"1.0","source":{"id":"1601.06565","kind":"arxiv","version":2}},"canonical_sha256":"585fc42d4aef2d1af0ad19327886fbda4ac6ca172e6c10d056df5dadfc48c738","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"585fc42d4aef2d1af0ad19327886fbda4ac6ca172e6c10d056df5dadfc48c738","first_computed_at":"2026-05-18T01:12:59.630422Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:12:59.630422Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vpPsivugcKJHXNwMAx6HRsYFdNT/cuxM9tSAQ0Hpt16PHM7lJHPWXVDeDN6JbZPOI+ttCX3xgf6D2qYkWT8vAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:12:59.630795Z","signed_message":"canonical_sha256_bytes"},"source_id":"1601.06565","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:af847b0c03ddbf8f2b1640e76b4279e51162c2651da75fe79826a140added977","sha256:e68b21bad6f7117bd89e011ce2512f36b9decf94c03e91998ab783f1b32c9e71"],"state_sha256":"48c4d5fa80df71100adceb3a655a7dfc9a857b49154cc6a072d88ad3464c2900"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZNPiiuIbJGZQjtAd24wvnHhEDltUGzvj2qsSrEV95ImjMsY/OWzHSs9GDmYIlm4OUMyhGtcQU+l91oRbnWzSAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T23:26:38.532073Z","bundle_sha256":"928a4aa743adc6f5a3451af3f591349f8dbb21a9b09b17ac4a3c35d21e312e35"}}