{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:DSKBPXZ2HS3S2B7YHHMH4AIM5F","short_pith_number":"pith:DSKBPXZ2","canonical_record":{"source":{"id":"nucl-ex/0204010","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"nucl-ex","submitted_at":"2002-04-21T21:31:21Z","cross_cats_sorted":[],"title_canon_sha256":"0335f58a87a114794aed83164cf3f06bbd9789fbf8974eebedd0345e8a75a54b","abstract_canon_sha256":"48f246ff16ba50ecbaa6626a7f0452d782001a24feaceba1a8dc6d5a56b7b3bb"},"schema_version":"1.0"},"canonical_sha256":"1c9417df3a3cb72d07f839d87e010ce9591cd520aa9430122caa61944dc6a60a","source":{"kind":"arxiv","id":"nucl-ex/0204010","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-ex/0204010","created_at":"2026-05-18T03:24:21Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-ex/0204010v1","created_at":"2026-05-18T03:24:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-ex/0204010","created_at":"2026-05-18T03:24:21Z"},{"alias_kind":"pith_short_12","alias_value":"DSKBPXZ2HS3S","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"DSKBPXZ2HS3S2B7Y","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"DSKBPXZ2","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:DSKBPXZ2HS3S2B7YHHMH4AIM5F","target":"record","payload":{"canonical_record":{"source":{"id":"nucl-ex/0204010","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"nucl-ex","submitted_at":"2002-04-21T21:31:21Z","cross_cats_sorted":[],"title_canon_sha256":"0335f58a87a114794aed83164cf3f06bbd9789fbf8974eebedd0345e8a75a54b","abstract_canon_sha256":"48f246ff16ba50ecbaa6626a7f0452d782001a24feaceba1a8dc6d5a56b7b3bb"},"schema_version":"1.0"},"canonical_sha256":"1c9417df3a3cb72d07f839d87e010ce9591cd520aa9430122caa61944dc6a60a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:24:21.355773Z","signature_b64":"HUeV5MYL97lGzipzGRhep/XiO7PGaxxlcEXR1uiGTcY5Eby43gjfgLuvLra1fbqmlyM1jsboj/25L4XNk5W3DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1c9417df3a3cb72d07f839d87e010ce9591cd520aa9430122caa61944dc6a60a","last_reissued_at":"2026-05-18T03:24:21.355209Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:24:21.355209Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"nucl-ex/0204010","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":"2026-05-18T03:24:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fOinw7QJRnKQ2FabIuqG+ZaSmol7dMh0u5o37e16hXl+8nENmZFAjBBRjFGCbuE0tBYW9gPXOpq5Pn70NevVAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T10:53:51.662595Z"},"content_sha256":"a748b6fe3ea3f1a25fee9a624966d7b49ffe0f8b2c51937f6eba13aabfa308fa","schema_version":"1.0","event_id":"sha256:a748b6fe3ea3f1a25fee9a624966d7b49ffe0f8b2c51937f6eba13aabfa308fa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:DSKBPXZ2HS3S2B7YHHMH4AIM5F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ratios of Elastic Scattering of Pions from 3H and 3He","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"B.L. Berman, B.M.K. Nefkens, I. Slaus, I. Supek, J.W. Price, K.S. Dhuga, L.D. Isenhower, M.E. Sadler, N-J. Nicholas, R.W.C. Carter, S.J. Greene, S.K. Matthews, W.J. Briscoe","submitted_at":"2002-04-21T21:31:21Z","abstract_excerpt":"We have measured the elastic-scattering ratios of normalized yields for charged pions from 3H and 3He in the backward hemisphere. At 180 MeV, we completed the angular distribution begun with our earlier measurements, adding six data points in the angular range of 119 deg to 169 deg in the pi-nucleus center of mass. We also measured an excitation function with data points at 142, 180, 220, and 256 MeV incident pion energy at the largest achievable angle for each energy between 160 deg and 170 deg in the pi-nucleus center of mass. This excitation function corresponds to the energies of our forwa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0204010","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":"2026-05-18T03:24:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+ey3SOO12LeeWTv2sK9bE84idmRwqWSQdmERPybkokHSpotFL+bZC8zsbduuLDgTwvYgdcB+7PquRBEguWOkCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T10:53:51.663384Z"},"content_sha256":"8a23c037875913a75c44733f665d3d388d25ffcc6df3d5b077f19da2dc75ab46","schema_version":"1.0","event_id":"sha256:8a23c037875913a75c44733f665d3d388d25ffcc6df3d5b077f19da2dc75ab46"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DSKBPXZ2HS3S2B7YHHMH4AIM5F/bundle.json","state_url":"https://pith.science/pith/DSKBPXZ2HS3S2B7YHHMH4AIM5F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DSKBPXZ2HS3S2B7YHHMH4AIM5F/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":"2026-05-31T10:53:51Z","links":{"resolver":"https://pith.science/pith/DSKBPXZ2HS3S2B7YHHMH4AIM5F","bundle":"https://pith.science/pith/DSKBPXZ2HS3S2B7YHHMH4AIM5F/bundle.json","state":"https://pith.science/pith/DSKBPXZ2HS3S2B7YHHMH4AIM5F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DSKBPXZ2HS3S2B7YHHMH4AIM5F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:DSKBPXZ2HS3S2B7YHHMH4AIM5F","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":"48f246ff16ba50ecbaa6626a7f0452d782001a24feaceba1a8dc6d5a56b7b3bb","cross_cats_sorted":[],"license":"","primary_cat":"nucl-ex","submitted_at":"2002-04-21T21:31:21Z","title_canon_sha256":"0335f58a87a114794aed83164cf3f06bbd9789fbf8974eebedd0345e8a75a54b"},"schema_version":"1.0","source":{"id":"nucl-ex/0204010","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nucl-ex/0204010","created_at":"2026-05-18T03:24:21Z"},{"alias_kind":"arxiv_version","alias_value":"nucl-ex/0204010v1","created_at":"2026-05-18T03:24:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nucl-ex/0204010","created_at":"2026-05-18T03:24:21Z"},{"alias_kind":"pith_short_12","alias_value":"DSKBPXZ2HS3S","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"DSKBPXZ2HS3S2B7Y","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"DSKBPXZ2","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:8a23c037875913a75c44733f665d3d388d25ffcc6df3d5b077f19da2dc75ab46","target":"graph","created_at":"2026-05-18T03:24:21Z","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 measured the elastic-scattering ratios of normalized yields for charged pions from 3H and 3He in the backward hemisphere. At 180 MeV, we completed the angular distribution begun with our earlier measurements, adding six data points in the angular range of 119 deg to 169 deg in the pi-nucleus center of mass. We also measured an excitation function with data points at 142, 180, 220, and 256 MeV incident pion energy at the largest achievable angle for each energy between 160 deg and 170 deg in the pi-nucleus center of mass. This excitation function corresponds to the energies of our forwa","authors_text":"B.L. Berman, B.M.K. Nefkens, I. Slaus, I. Supek, J.W. Price, K.S. Dhuga, L.D. Isenhower, M.E. Sadler, N-J. Nicholas, R.W.C. Carter, S.J. Greene, S.K. Matthews, W.J. Briscoe","cross_cats":[],"headline":"","license":"","primary_cat":"nucl-ex","submitted_at":"2002-04-21T21:31:21Z","title":"Ratios of Elastic Scattering of Pions from 3H and 3He"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0204010","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:a748b6fe3ea3f1a25fee9a624966d7b49ffe0f8b2c51937f6eba13aabfa308fa","target":"record","created_at":"2026-05-18T03:24:21Z","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":"48f246ff16ba50ecbaa6626a7f0452d782001a24feaceba1a8dc6d5a56b7b3bb","cross_cats_sorted":[],"license":"","primary_cat":"nucl-ex","submitted_at":"2002-04-21T21:31:21Z","title_canon_sha256":"0335f58a87a114794aed83164cf3f06bbd9789fbf8974eebedd0345e8a75a54b"},"schema_version":"1.0","source":{"id":"nucl-ex/0204010","kind":"arxiv","version":1}},"canonical_sha256":"1c9417df3a3cb72d07f839d87e010ce9591cd520aa9430122caa61944dc6a60a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1c9417df3a3cb72d07f839d87e010ce9591cd520aa9430122caa61944dc6a60a","first_computed_at":"2026-05-18T03:24:21.355209Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:24:21.355209Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HUeV5MYL97lGzipzGRhep/XiO7PGaxxlcEXR1uiGTcY5Eby43gjfgLuvLra1fbqmlyM1jsboj/25L4XNk5W3DA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:24:21.355773Z","signed_message":"canonical_sha256_bytes"},"source_id":"nucl-ex/0204010","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a748b6fe3ea3f1a25fee9a624966d7b49ffe0f8b2c51937f6eba13aabfa308fa","sha256:8a23c037875913a75c44733f665d3d388d25ffcc6df3d5b077f19da2dc75ab46"],"state_sha256":"4265031560bb7d7ae7ee66681bba380dd771878b8143a32be893289ba0c7bbaa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nwGnjBtkOo4QapLJ0hax65PBnCAJ/BwfOYizF8Cd95sko+Yv1J/YWGZGRB3oqxl4RO0UYRj1ldIwVuz29QNADw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T10:53:51.667207Z","bundle_sha256":"1efc360e7194607afb39a9721797a9917f8918bf7fa891f0b6c4f2d79b500ce8"}}