{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:R555HHUEGTKGQ6ZNVUSHTDYC7V","short_pith_number":"pith:R555HHUE","canonical_record":{"source":{"id":"1411.6708","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2014-11-25T02:57:40Z","cross_cats_sorted":[],"title_canon_sha256":"e0c92301dd91f822d2d189bee26f68655cea60e478dd16ee75a98c31af5dc1aa","abstract_canon_sha256":"89b34c1a908dd8ccee5c514766fe5a770e06db3ab9b285fc95a6d8376df9d836"},"schema_version":"1.0"},"canonical_sha256":"8f7bd39e8434d4687b2dad24798f02fd614acb70639476a1a90481268a043d93","source":{"kind":"arxiv","id":"1411.6708","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.6708","created_at":"2026-05-18T02:26:31Z"},{"alias_kind":"arxiv_version","alias_value":"1411.6708v1","created_at":"2026-05-18T02:26:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.6708","created_at":"2026-05-18T02:26:31Z"},{"alias_kind":"pith_short_12","alias_value":"R555HHUEGTKG","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"R555HHUEGTKGQ6ZN","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"R555HHUE","created_at":"2026-05-18T12:28:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:R555HHUEGTKGQ6ZNVUSHTDYC7V","target":"record","payload":{"canonical_record":{"source":{"id":"1411.6708","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2014-11-25T02:57:40Z","cross_cats_sorted":[],"title_canon_sha256":"e0c92301dd91f822d2d189bee26f68655cea60e478dd16ee75a98c31af5dc1aa","abstract_canon_sha256":"89b34c1a908dd8ccee5c514766fe5a770e06db3ab9b285fc95a6d8376df9d836"},"schema_version":"1.0"},"canonical_sha256":"8f7bd39e8434d4687b2dad24798f02fd614acb70639476a1a90481268a043d93","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:26:31.370431Z","signature_b64":"hlbkp5s5qrk7NaRPH9beMD5dS5InMz5RAki2/lrzp5g7lrQaH7fzdnwqzhnpS2rUtEd3KS7ToGED/J97SY+eAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8f7bd39e8434d4687b2dad24798f02fd614acb70639476a1a90481268a043d93","last_reissued_at":"2026-05-18T02:26:31.370003Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:26:31.370003Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.6708","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":"2026-05-18T02:26:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CewNJ7kajw0mmmkNqWUnkdfqee+hd+W3lBFb5w0KDQpKq/XHulRm7dsLf20c1W68d1Tgkodpen7ne3WYoaVnAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T17:23:19.564493Z"},"content_sha256":"0e3c8e604be3686bb5d640d0c9c9180be6e3f39b0783972cf2d33b52b4f4b028","schema_version":"1.0","event_id":"sha256:0e3c8e604be3686bb5d640d0c9c9180be6e3f39b0783972cf2d33b52b4f4b028"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:R555HHUEGTKGQ6ZNVUSHTDYC7V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observation of the \"$K^-pp$\"-like structure in the $d(\\pi^+, K^+)$ reaction at 1.69 GeV/$c$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"Alessandro Feliciello, Atsushi Sakaguchi, Atsushi Tokiyasu, Bidyut Roy, Changwoo Joo, Harphool Kumawat, Hirokazu Tamura, Hiroyuki Ekawa, Hiroyuki Fujioka, Hiroyuki Sako, Hitoshi Sugimura, Hyoungchan Bhang, Kenichi Imai, Kenji Hosomi, Kiyoshi Tanida, Koji Miwa, Kotaro Shirotori, Manabu Moritsu, Masayuki Niiyama, Megumi Naruki, Mifuyu Ukai, Petr Evtoukhovitch, Ryosuke Ota, Ryotaro Honda, Ryuta Kiuchi, Seongbae Yang, Shigeru Ishimoto, Shoichi Hasegawa, Shoji Suzuki, Shuhei Hayakawa, Shunsuke Kanatsuki, Stefania Bufalino, Susumu Sato, Takeshi Koike, Takeshi Yamamoto, Tomofumi Nagae, Tomonori Takahashi, Toshiyuki Takahashi, Toshiyuki Tanaka, Valentin Samoilov, Yudai Ichikawa, Yuki Matsumoto, Yuki Nozawa, Zviadi Tsamalaidze","submitted_at":"2014-11-25T02:57:40Z","abstract_excerpt":"We have observed a \"$K^-pp$\"-like structure in the $d(\\pi^+,K^+)$ reaction at 1.69 GeV/$c$. In this reaction $\\Lambda(1405)$ hyperon resonance is expected to be produced as a doorway to form the $K^-pp$ through the $\\Lambda^*p\\rightarrow K^-pp$ process. However, most of the produced $\\Lambda(1405)$'s would escape from deuteron without secondary reactions. Therefore, coincidence of high-momentum ($>$ 250~MeV/$c$) proton(s) in large emission angles ($39^\\circ<\\theta_{lab.}<122^\\circ$) was requested to enhance the signal-to-background ratio. A broad enhancement in the proton coincidence spectra a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.6708","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":"2026-05-18T02:26:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5gyc+ytN3Ch11hit3O0qyZoGeibvuz2u6TdBOkUm+VC0fBBDMReWhKiQSYSgIQa7YvVqEDOPXJA/iQnE8HsVBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T17:23:19.565257Z"},"content_sha256":"6845437a1dd1553486dd07a44093dbe743c1cc08710711202c84c0e9447a66c5","schema_version":"1.0","event_id":"sha256:6845437a1dd1553486dd07a44093dbe743c1cc08710711202c84c0e9447a66c5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R555HHUEGTKGQ6ZNVUSHTDYC7V/bundle.json","state_url":"https://pith.science/pith/R555HHUEGTKGQ6ZNVUSHTDYC7V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R555HHUEGTKGQ6ZNVUSHTDYC7V/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":"2026-05-28T17:23:19Z","links":{"resolver":"https://pith.science/pith/R555HHUEGTKGQ6ZNVUSHTDYC7V","bundle":"https://pith.science/pith/R555HHUEGTKGQ6ZNVUSHTDYC7V/bundle.json","state":"https://pith.science/pith/R555HHUEGTKGQ6ZNVUSHTDYC7V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R555HHUEGTKGQ6ZNVUSHTDYC7V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:R555HHUEGTKGQ6ZNVUSHTDYC7V","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":"89b34c1a908dd8ccee5c514766fe5a770e06db3ab9b285fc95a6d8376df9d836","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2014-11-25T02:57:40Z","title_canon_sha256":"e0c92301dd91f822d2d189bee26f68655cea60e478dd16ee75a98c31af5dc1aa"},"schema_version":"1.0","source":{"id":"1411.6708","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.6708","created_at":"2026-05-18T02:26:31Z"},{"alias_kind":"arxiv_version","alias_value":"1411.6708v1","created_at":"2026-05-18T02:26:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.6708","created_at":"2026-05-18T02:26:31Z"},{"alias_kind":"pith_short_12","alias_value":"R555HHUEGTKG","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"R555HHUEGTKGQ6ZN","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"R555HHUE","created_at":"2026-05-18T12:28:46Z"}],"graph_snapshots":[{"event_id":"sha256:6845437a1dd1553486dd07a44093dbe743c1cc08710711202c84c0e9447a66c5","target":"graph","created_at":"2026-05-18T02:26:31Z","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":"We have observed a \"$K^-pp$\"-like structure in the $d(\\pi^+,K^+)$ reaction at 1.69 GeV/$c$. In this reaction $\\Lambda(1405)$ hyperon resonance is expected to be produced as a doorway to form the $K^-pp$ through the $\\Lambda^*p\\rightarrow K^-pp$ process. However, most of the produced $\\Lambda(1405)$'s would escape from deuteron without secondary reactions. Therefore, coincidence of high-momentum ($>$ 250~MeV/$c$) proton(s) in large emission angles ($39^\\circ<\\theta_{lab.}<122^\\circ$) was requested to enhance the signal-to-background ratio. A broad enhancement in the proton coincidence spectra a","authors_text":"Alessandro Feliciello, Atsushi Sakaguchi, Atsushi Tokiyasu, Bidyut Roy, Changwoo Joo, Harphool Kumawat, Hirokazu Tamura, Hiroyuki Ekawa, Hiroyuki Fujioka, Hiroyuki Sako, Hitoshi Sugimura, Hyoungchan Bhang, Kenichi Imai, Kenji Hosomi, Kiyoshi Tanida, Koji Miwa, Kotaro Shirotori, Manabu Moritsu, Masayuki Niiyama, Megumi Naruki, Mifuyu Ukai, Petr Evtoukhovitch, Ryosuke Ota, Ryotaro Honda, Ryuta Kiuchi, Seongbae Yang, Shigeru Ishimoto, Shoichi Hasegawa, Shoji Suzuki, Shuhei Hayakawa, Shunsuke Kanatsuki, Stefania Bufalino, Susumu Sato, Takeshi Koike, Takeshi Yamamoto, Tomofumi Nagae, Tomonori Takahashi, Toshiyuki Takahashi, Toshiyuki Tanaka, Valentin Samoilov, Yudai Ichikawa, Yuki Matsumoto, Yuki Nozawa, Zviadi Tsamalaidze","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2014-11-25T02:57:40Z","title":"Observation of the \"$K^-pp$\"-like structure in the $d(\\pi^+, K^+)$ reaction at 1.69 GeV/$c$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.6708","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":"sha256:0e3c8e604be3686bb5d640d0c9c9180be6e3f39b0783972cf2d33b52b4f4b028","target":"record","created_at":"2026-05-18T02:26:31Z","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":"89b34c1a908dd8ccee5c514766fe5a770e06db3ab9b285fc95a6d8376df9d836","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2014-11-25T02:57:40Z","title_canon_sha256":"e0c92301dd91f822d2d189bee26f68655cea60e478dd16ee75a98c31af5dc1aa"},"schema_version":"1.0","source":{"id":"1411.6708","kind":"arxiv","version":1}},"canonical_sha256":"8f7bd39e8434d4687b2dad24798f02fd614acb70639476a1a90481268a043d93","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8f7bd39e8434d4687b2dad24798f02fd614acb70639476a1a90481268a043d93","first_computed_at":"2026-05-18T02:26:31.370003Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:26:31.370003Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hlbkp5s5qrk7NaRPH9beMD5dS5InMz5RAki2/lrzp5g7lrQaH7fzdnwqzhnpS2rUtEd3KS7ToGED/J97SY+eAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:26:31.370431Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.6708","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e3c8e604be3686bb5d640d0c9c9180be6e3f39b0783972cf2d33b52b4f4b028","sha256:6845437a1dd1553486dd07a44093dbe743c1cc08710711202c84c0e9447a66c5"],"state_sha256":"1d295e84f00b00c310a886350fc667a90e3447664f8eef6e20de784cd0681348"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bRXdp/0vBXDeG5TiefiNoLJR3+pTyomn/gLGRZpJIyQhHnXJKrcEDP3fGmh8Eq8eeGp8md6rdyRdl3v6QyKrCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T17:23:19.569033Z","bundle_sha256":"cc6920e467e49231a21bd25ac2a693441f16aa14807692d6efc87c1c649d0233"}}