{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:DJ6QSG7ZQFPKZKSUTPHV2M7RKX","short_pith_number":"pith:DJ6QSG7Z","canonical_record":{"source":{"id":"2507.18900","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2025-07-25T02:47:55Z","cross_cats_sorted":[],"title_canon_sha256":"1e3d2501a71d3ebc4a03ee71b4a4d4f2ec972e020d60e56e6aca4b5342dd5a72","abstract_canon_sha256":"33ab69ac18d23c42983f0d4a11413589f4c364c2f27923feaba795b7c727af65"},"schema_version":"1.0"},"canonical_sha256":"1a7d091bf9815eacaa549bcf5d33f155ee72bf845e9fbaddbd70991ac4f23e5c","source":{"kind":"arxiv","id":"2507.18900","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.18900","created_at":"2026-07-05T11:49:58Z"},{"alias_kind":"arxiv_version","alias_value":"2507.18900v2","created_at":"2026-07-05T11:49:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.18900","created_at":"2026-07-05T11:49:58Z"},{"alias_kind":"pith_short_12","alias_value":"DJ6QSG7ZQFPK","created_at":"2026-07-05T11:49:58Z"},{"alias_kind":"pith_short_16","alias_value":"DJ6QSG7ZQFPKZKSU","created_at":"2026-07-05T11:49:58Z"},{"alias_kind":"pith_short_8","alias_value":"DJ6QSG7Z","created_at":"2026-07-05T11:49:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:DJ6QSG7ZQFPKZKSUTPHV2M7RKX","target":"record","payload":{"canonical_record":{"source":{"id":"2507.18900","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2025-07-25T02:47:55Z","cross_cats_sorted":[],"title_canon_sha256":"1e3d2501a71d3ebc4a03ee71b4a4d4f2ec972e020d60e56e6aca4b5342dd5a72","abstract_canon_sha256":"33ab69ac18d23c42983f0d4a11413589f4c364c2f27923feaba795b7c727af65"},"schema_version":"1.0"},"canonical_sha256":"1a7d091bf9815eacaa549bcf5d33f155ee72bf845e9fbaddbd70991ac4f23e5c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:49:58.257747Z","signature_b64":"tM48fD7PF/g33BMcD4rLSZXyE/Smv40GzlGTFce3GQsLG6wKASDhRaXM/8Gltr6hlU2DY317Fk1QrFJ6G7VqDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1a7d091bf9815eacaa549bcf5d33f155ee72bf845e9fbaddbd70991ac4f23e5c","last_reissued_at":"2026-07-05T11:49:58.257267Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:49:58.257267Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.18900","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":"2026-07-05T11:49:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D0KaePz/FvIF1xyCSm4crlhOdxJeJ+Z8YQXyCEJdHjB2eUOEul0D5FAytfmzI9zxQHTmsg6IBHI5tgvNwNa2BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:36:51.981074Z"},"content_sha256":"fbf5d53cc37b8c45e1ac8ac0ed46651ec59b2197df77c357c49a80cfac5e9977","schema_version":"1.0","event_id":"sha256:fbf5d53cc37b8c45e1ac8ac0ed46651ec59b2197df77c357c49a80cfac5e9977"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:DJ6QSG7ZQFPKZKSUTPHV2M7RKX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Velocity dependence of the mass modifications of $\\rho$ and $\\omega$ mesons in 12 GeV $p+A$ reactions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"Fuminori Sakuma, Haruhiko Funahashi, Hideki Hamagaki, Hideto En'yo, Hiroki Kanda, Junsei Chiba, Kazuhiro Tanaka, Kazuya Aoki, Koji Miwa, Koki Kanno, Kyoichiro Ozawa, Manabu Togawa, Masaaki Kitaguchi, Masaharu Ieiri, Masaya Ishino, Megumi Naruki, Michiko Sekimoto, Osamu Sasaki, Ryotaro Muto, Satoru Yamada, Satoshi Mihara, Satoshi Yokkaichi, Takuya Miyashita, Terunao Nakura, Tetsuya Murakami, Tsuguchika Tabaru, Wataru Nakai, Yoshinori Fukao, Yoshio Yoshimura","submitted_at":"2025-07-25T02:47:55Z","abstract_excerpt":"This study measured the invariant mass spectra of $\\rho$ and $\\omega$ mesons in the $e^+e^-$ decay channel for 12 GeV (12.9 GeV/$c$) $p+\\mathrm{C}$ and $p+\\mathrm{Cu}$ reactions ($\\sqrt{s}_{NN}=5.1$ GeV) at the KEK 12-GeV Proton Synchrotron. The measured spectra were divided into three $\\beta\\gamma$ regions to examine their velocity dependence. Across all regions, significant excesses were observed on the low-mass side of the $\\omega$ meson peak, beyond the contributions of known hadronic sources, in the data of the C and Cu targets. Model calculations were subsequently performed to evaluate t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.18900","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2507.18900/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T11:49:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O5fx3tHZtmFJXjdc6/z4UR2o6jk7mTIKVeyEsUAvTsRVmHlR6s3GKpNrLOxj9NstGYmgTZP5xuVRG6Mnh0EZCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:36:51.981466Z"},"content_sha256":"0378c6b5d4cea0db6c5b223d65555953a858b21d8ada5980785cbd5c45d02f55","schema_version":"1.0","event_id":"sha256:0378c6b5d4cea0db6c5b223d65555953a858b21d8ada5980785cbd5c45d02f55"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DJ6QSG7ZQFPKZKSUTPHV2M7RKX/bundle.json","state_url":"https://pith.science/pith/DJ6QSG7ZQFPKZKSUTPHV2M7RKX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DJ6QSG7ZQFPKZKSUTPHV2M7RKX/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":"2026-07-07T11:36:51Z","links":{"resolver":"https://pith.science/pith/DJ6QSG7ZQFPKZKSUTPHV2M7RKX","bundle":"https://pith.science/pith/DJ6QSG7ZQFPKZKSUTPHV2M7RKX/bundle.json","state":"https://pith.science/pith/DJ6QSG7ZQFPKZKSUTPHV2M7RKX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DJ6QSG7ZQFPKZKSUTPHV2M7RKX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:DJ6QSG7ZQFPKZKSUTPHV2M7RKX","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":"33ab69ac18d23c42983f0d4a11413589f4c364c2f27923feaba795b7c727af65","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2025-07-25T02:47:55Z","title_canon_sha256":"1e3d2501a71d3ebc4a03ee71b4a4d4f2ec972e020d60e56e6aca4b5342dd5a72"},"schema_version":"1.0","source":{"id":"2507.18900","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.18900","created_at":"2026-07-05T11:49:58Z"},{"alias_kind":"arxiv_version","alias_value":"2507.18900v2","created_at":"2026-07-05T11:49:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.18900","created_at":"2026-07-05T11:49:58Z"},{"alias_kind":"pith_short_12","alias_value":"DJ6QSG7ZQFPK","created_at":"2026-07-05T11:49:58Z"},{"alias_kind":"pith_short_16","alias_value":"DJ6QSG7ZQFPKZKSU","created_at":"2026-07-05T11:49:58Z"},{"alias_kind":"pith_short_8","alias_value":"DJ6QSG7Z","created_at":"2026-07-05T11:49:58Z"}],"graph_snapshots":[{"event_id":"sha256:0378c6b5d4cea0db6c5b223d65555953a858b21d8ada5980785cbd5c45d02f55","target":"graph","created_at":"2026-07-05T11:49:58Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2507.18900/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This study measured the invariant mass spectra of $\\rho$ and $\\omega$ mesons in the $e^+e^-$ decay channel for 12 GeV (12.9 GeV/$c$) $p+\\mathrm{C}$ and $p+\\mathrm{Cu}$ reactions ($\\sqrt{s}_{NN}=5.1$ GeV) at the KEK 12-GeV Proton Synchrotron. The measured spectra were divided into three $\\beta\\gamma$ regions to examine their velocity dependence. Across all regions, significant excesses were observed on the low-mass side of the $\\omega$ meson peak, beyond the contributions of known hadronic sources, in the data of the C and Cu targets. Model calculations were subsequently performed to evaluate t","authors_text":"Fuminori Sakuma, Haruhiko Funahashi, Hideki Hamagaki, Hideto En'yo, Hiroki Kanda, Junsei Chiba, Kazuhiro Tanaka, Kazuya Aoki, Koji Miwa, Koki Kanno, Kyoichiro Ozawa, Manabu Togawa, Masaaki Kitaguchi, Masaharu Ieiri, Masaya Ishino, Megumi Naruki, Michiko Sekimoto, Osamu Sasaki, Ryotaro Muto, Satoru Yamada, Satoshi Mihara, Satoshi Yokkaichi, Takuya Miyashita, Terunao Nakura, Tetsuya Murakami, Tsuguchika Tabaru, Wataru Nakai, Yoshinori Fukao, Yoshio Yoshimura","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2025-07-25T02:47:55Z","title":"Velocity dependence of the mass modifications of $\\rho$ and $\\omega$ mesons in 12 GeV $p+A$ reactions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.18900","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:fbf5d53cc37b8c45e1ac8ac0ed46651ec59b2197df77c357c49a80cfac5e9977","target":"record","created_at":"2026-07-05T11:49:58Z","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":"33ab69ac18d23c42983f0d4a11413589f4c364c2f27923feaba795b7c727af65","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2025-07-25T02:47:55Z","title_canon_sha256":"1e3d2501a71d3ebc4a03ee71b4a4d4f2ec972e020d60e56e6aca4b5342dd5a72"},"schema_version":"1.0","source":{"id":"2507.18900","kind":"arxiv","version":2}},"canonical_sha256":"1a7d091bf9815eacaa549bcf5d33f155ee72bf845e9fbaddbd70991ac4f23e5c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1a7d091bf9815eacaa549bcf5d33f155ee72bf845e9fbaddbd70991ac4f23e5c","first_computed_at":"2026-07-05T11:49:58.257267Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:49:58.257267Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tM48fD7PF/g33BMcD4rLSZXyE/Smv40GzlGTFce3GQsLG6wKASDhRaXM/8Gltr6hlU2DY317Fk1QrFJ6G7VqDg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:49:58.257747Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.18900","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fbf5d53cc37b8c45e1ac8ac0ed46651ec59b2197df77c357c49a80cfac5e9977","sha256:0378c6b5d4cea0db6c5b223d65555953a858b21d8ada5980785cbd5c45d02f55"],"state_sha256":"07787f1976b468b17c616723b30396d76048b2b9cd214b74cf41b1ec91e1316f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nCPvS+7rrRQj/dLs+uVuQ/VXRKo4hMX9FwwpuY/Kfy8RIf/Y5MPMLLaTmW5D1SzHWBAyC0kWKBUKkEtIsF7WAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T11:36:51.983413Z","bundle_sha256":"3d7ad0d653181249100781f14629daf9592738a7810ec3254c85948e2223a4da"}}