{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:ZP7MN34HMOTTQ2NIECRGABTAK2","short_pith_number":"pith:ZP7MN34H","canonical_record":{"source":{"id":"1109.1111","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2011-09-06T08:42:30Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"d8c59e90081b4e9e383c7bf21bcbc7cdc7043afb6bacfee21eeb8de57d90de6a","abstract_canon_sha256":"105f49a10bc277ad8961fd77d8428eb55c1ab2e385e3dd01a00bb126eb2449e0"},"schema_version":"1.0"},"canonical_sha256":"cbfec6ef8763a73869a820a260066056b6e9930810a188503c76b3560a74df10","source":{"kind":"arxiv","id":"1109.1111","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.1111","created_at":"2026-05-18T02:00:39Z"},{"alias_kind":"arxiv_version","alias_value":"1109.1111v1","created_at":"2026-05-18T02:00:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.1111","created_at":"2026-05-18T02:00:39Z"},{"alias_kind":"pith_short_12","alias_value":"ZP7MN34HMOTT","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"ZP7MN34HMOTTQ2NI","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"ZP7MN34H","created_at":"2026-05-18T12:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:ZP7MN34HMOTTQ2NIECRGABTAK2","target":"record","payload":{"canonical_record":{"source":{"id":"1109.1111","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2011-09-06T08:42:30Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"d8c59e90081b4e9e383c7bf21bcbc7cdc7043afb6bacfee21eeb8de57d90de6a","abstract_canon_sha256":"105f49a10bc277ad8961fd77d8428eb55c1ab2e385e3dd01a00bb126eb2449e0"},"schema_version":"1.0"},"canonical_sha256":"cbfec6ef8763a73869a820a260066056b6e9930810a188503c76b3560a74df10","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:39.176155Z","signature_b64":"7oFlBFZW5Jii6ceBkKOmPBLE13H1iZs1+fKqWJUCJMGQe2L9ueUQk0QOdL6CtMzP3V5GaqjhB+VFwjuCKFBQCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cbfec6ef8763a73869a820a260066056b6e9930810a188503c76b3560a74df10","last_reissued_at":"2026-05-18T02:00:39.175268Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:39.175268Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.1111","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":"2026-05-18T02:00:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TJPRgxjttYl3poLXNnkE9l3lXOUoKU4hdkDuNQFzN8dnVFjHXBlJvvLd9C4nalcGeUIW7oO+CwJwhc/1oONnAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:56:04.708239Z"},"content_sha256":"f66f064117f2636e2e092710c82ddbc527b6aef6bdc8793ce892d374b4ade5a0","schema_version":"1.0","event_id":"sha256:f66f064117f2636e2e092710c82ddbc527b6aef6bdc8793ce892d374b4ade5a0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:ZP7MN34HMOTTQ2NIECRGABTAK2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The study of the proton-proton collisions at the beam momentum 1628 MeV/c","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-ex","authors_text":"A.V. Sarantsev, K.N. Ermakov, O.V. Rogachevsky, S.G. Sherman, V.A. Nikonov, V.I. Medvedev, V.V. Sarantsev","submitted_at":"2011-09-06T08:42:30Z","abstract_excerpt":"The detailed investigation of the single pion production reactions $pp\\to pn\\pi^{+}$ and $pp\\to pp\\pi^{o}$ at the incident proton momentum 1628 MeV/c has been carried out. The data are analyzed in the framework of the event-by-event maximum likelihood method together with the $pp\\to pp\\pi^{0}$ data measured earlier in the energy region below 1 GeV. At 1628 MeV/c the largest contributions stem from the $^{3}P_{2}$, $^{3}P_{1}$, $^{3}P_{0}$, $^{1}D_{2}$ and $^{3}F_{2}$ initial partial waves."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.1111","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":"2026-05-18T02:00:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nVhYUbeadABEx7IlCEqGQL7mKIkM+lUBMQxQDeLWsLSPYEL8iIzqv5y11V6svCE5O5CnqxoKlhtS3kCiIBmdBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:56:04.708893Z"},"content_sha256":"b5c5bfe1b34bc9d1f25ea3f0cd9f30fe9b9583bf4cd68ecd0f8ad8aa7749fc1b","schema_version":"1.0","event_id":"sha256:b5c5bfe1b34bc9d1f25ea3f0cd9f30fe9b9583bf4cd68ecd0f8ad8aa7749fc1b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZP7MN34HMOTTQ2NIECRGABTAK2/bundle.json","state_url":"https://pith.science/pith/ZP7MN34HMOTTQ2NIECRGABTAK2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZP7MN34HMOTTQ2NIECRGABTAK2/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":"2026-05-25T20:56:04Z","links":{"resolver":"https://pith.science/pith/ZP7MN34HMOTTQ2NIECRGABTAK2","bundle":"https://pith.science/pith/ZP7MN34HMOTTQ2NIECRGABTAK2/bundle.json","state":"https://pith.science/pith/ZP7MN34HMOTTQ2NIECRGABTAK2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZP7MN34HMOTTQ2NIECRGABTAK2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:ZP7MN34HMOTTQ2NIECRGABTAK2","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":"105f49a10bc277ad8961fd77d8428eb55c1ab2e385e3dd01a00bb126eb2449e0","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2011-09-06T08:42:30Z","title_canon_sha256":"d8c59e90081b4e9e383c7bf21bcbc7cdc7043afb6bacfee21eeb8de57d90de6a"},"schema_version":"1.0","source":{"id":"1109.1111","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.1111","created_at":"2026-05-18T02:00:39Z"},{"alias_kind":"arxiv_version","alias_value":"1109.1111v1","created_at":"2026-05-18T02:00:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.1111","created_at":"2026-05-18T02:00:39Z"},{"alias_kind":"pith_short_12","alias_value":"ZP7MN34HMOTT","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"ZP7MN34HMOTTQ2NI","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"ZP7MN34H","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:b5c5bfe1b34bc9d1f25ea3f0cd9f30fe9b9583bf4cd68ecd0f8ad8aa7749fc1b","target":"graph","created_at":"2026-05-18T02:00:39Z","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 detailed investigation of the single pion production reactions $pp\\to pn\\pi^{+}$ and $pp\\to pp\\pi^{o}$ at the incident proton momentum 1628 MeV/c has been carried out. The data are analyzed in the framework of the event-by-event maximum likelihood method together with the $pp\\to pp\\pi^{0}$ data measured earlier in the energy region below 1 GeV. At 1628 MeV/c the largest contributions stem from the $^{3}P_{2}$, $^{3}P_{1}$, $^{3}P_{0}$, $^{1}D_{2}$ and $^{3}F_{2}$ initial partial waves.","authors_text":"A.V. Sarantsev, K.N. Ermakov, O.V. Rogachevsky, S.G. Sherman, V.A. Nikonov, V.I. Medvedev, V.V. Sarantsev","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2011-09-06T08:42:30Z","title":"The study of the proton-proton collisions at the beam momentum 1628 MeV/c"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.1111","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:f66f064117f2636e2e092710c82ddbc527b6aef6bdc8793ce892d374b4ade5a0","target":"record","created_at":"2026-05-18T02:00:39Z","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":"105f49a10bc277ad8961fd77d8428eb55c1ab2e385e3dd01a00bb126eb2449e0","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2011-09-06T08:42:30Z","title_canon_sha256":"d8c59e90081b4e9e383c7bf21bcbc7cdc7043afb6bacfee21eeb8de57d90de6a"},"schema_version":"1.0","source":{"id":"1109.1111","kind":"arxiv","version":1}},"canonical_sha256":"cbfec6ef8763a73869a820a260066056b6e9930810a188503c76b3560a74df10","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cbfec6ef8763a73869a820a260066056b6e9930810a188503c76b3560a74df10","first_computed_at":"2026-05-18T02:00:39.175268Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:39.175268Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7oFlBFZW5Jii6ceBkKOmPBLE13H1iZs1+fKqWJUCJMGQe2L9ueUQk0QOdL6CtMzP3V5GaqjhB+VFwjuCKFBQCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:39.176155Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.1111","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f66f064117f2636e2e092710c82ddbc527b6aef6bdc8793ce892d374b4ade5a0","sha256:b5c5bfe1b34bc9d1f25ea3f0cd9f30fe9b9583bf4cd68ecd0f8ad8aa7749fc1b"],"state_sha256":"1d1559e57105d0ba179631be3b84a1e9785476f9f83c109c01cc872004d759e9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WaWUwdRGU4kceEHdIvglq3B2l0q641i1h4iP3ZNffEAlBpKJvN9YVNEnSyQOHVLVsLX9Vf+G74UELZ000aRbDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T20:56:04.712723Z","bundle_sha256":"030a0d1c1519071ff11d80125bf0320d387220e034c90d38a63b8d488b33a717"}}