{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:2SXRQQEFO4XYHSIX5HOKRKV4K4","short_pith_number":"pith:2SXRQQEF","canonical_record":{"source":{"id":"1204.2279","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2012-04-10T20:34:31Z","cross_cats_sorted":[],"title_canon_sha256":"77b3023c8cc19827bde3c8f1504836e31ed6fb199ce06d4ed12ca6e8681fdcc6","abstract_canon_sha256":"922bd369ad8c6cb478d4a9c13bcc547b0ea67c807f42198ee4604020e50cd291"},"schema_version":"1.0"},"canonical_sha256":"d4af184085772f83c917e9dca8aabc5703417bbdf9b902817ce1fd4d51214a6b","source":{"kind":"arxiv","id":"1204.2279","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.2279","created_at":"2026-05-18T03:57:28Z"},{"alias_kind":"arxiv_version","alias_value":"1204.2279v1","created_at":"2026-05-18T03:57:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.2279","created_at":"2026-05-18T03:57:28Z"},{"alias_kind":"pith_short_12","alias_value":"2SXRQQEFO4XY","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2SXRQQEFO4XYHSIX","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2SXRQQEF","created_at":"2026-05-18T12:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:2SXRQQEFO4XYHSIX5HOKRKV4K4","target":"record","payload":{"canonical_record":{"source":{"id":"1204.2279","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2012-04-10T20:34:31Z","cross_cats_sorted":[],"title_canon_sha256":"77b3023c8cc19827bde3c8f1504836e31ed6fb199ce06d4ed12ca6e8681fdcc6","abstract_canon_sha256":"922bd369ad8c6cb478d4a9c13bcc547b0ea67c807f42198ee4604020e50cd291"},"schema_version":"1.0"},"canonical_sha256":"d4af184085772f83c917e9dca8aabc5703417bbdf9b902817ce1fd4d51214a6b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:57:28.176746Z","signature_b64":"ccfJDp1S/OUfCPGDosHw8o3bCGMSm9DaPPfqMfyUBF5kFgshNCOU/hZGS2nfiviqt0xo5rN5qz5lbA/OcGHpAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d4af184085772f83c917e9dca8aabc5703417bbdf9b902817ce1fd4d51214a6b","last_reissued_at":"2026-05-18T03:57:28.175886Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:57:28.175886Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.2279","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":"2026-05-18T03:57:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dEy2sIMpBgoJxLIRPPcif14kpO2quTAOR2lxIqF1B1KFfWdq78eDAsY2F0veECIutoHVpitiPusrClwoFfRWCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T17:41:56.068773Z"},"content_sha256":"12556e382e8474b177f61e80324455127e96741f097b37ac555773de85c63606","schema_version":"1.0","event_id":"sha256:12556e382e8474b177f61e80324455127e96741f097b37ac555773de85c63606"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:2SXRQQEFO4XYHSIX5HOKRKV4K4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observation of mutually enhanced collectivity in self-conjugate $^{76}_{38}$Sr$_{38}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Dewald, A. Gade, A. Lemasson, A. Nichols, A. Ratkiewicz, C. Fransen, C. Morse, D. Bazin, D. Weisshaar, H. Iwasaki, J. S. Berryman, K. Wimmer, P. Voss, R. Wadsworth, R. Winkler, S. McDaniel, S. Stroberg, T. Baugher","submitted_at":"2012-04-10T20:34:31Z","abstract_excerpt":"The lifetimes of the first 2$^{+}$ states in the neutron-deficient $^{76,78}$Sr isotopes were measured using a unique combination of the $\\gamma$-ray line-shape method and two-step nucleon exchange reactions at intermediate energies. The transition rates for the 2$^{+}$ states were determined to be $B$(E2;2$^{+}$$\\to 0^{+}$) = 2220(270) e$^{2}$fm$^{4}$ for $^{76}$Sr and 1800(250) e$^{2}$fm$^{4}$ for $^{78}$Sr, corresponding to large deformation of $\\beta_2$ = 0.45(3) for $^{76}$Sr and 0.40(3) for $^{78}$Sr. The present data provide experimental evidence for mutually enhanced collectivity that "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.2279","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":"2026-05-18T03:57:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bH9uQC1DseEQWjXGc514+D6kQS6FEBuriQ9WVemaCP1R1Ws/LFUzFVivY2M4twdVr0RJrKgYZ6V4ROrezcBeCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T17:41:56.069232Z"},"content_sha256":"0438c7b6bc87f243b04f326ccb184957bf033ca8dfa274a4398547621e2496c5","schema_version":"1.0","event_id":"sha256:0438c7b6bc87f243b04f326ccb184957bf033ca8dfa274a4398547621e2496c5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2SXRQQEFO4XYHSIX5HOKRKV4K4/bundle.json","state_url":"https://pith.science/pith/2SXRQQEFO4XYHSIX5HOKRKV4K4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2SXRQQEFO4XYHSIX5HOKRKV4K4/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":"2026-05-25T17:41:56Z","links":{"resolver":"https://pith.science/pith/2SXRQQEFO4XYHSIX5HOKRKV4K4","bundle":"https://pith.science/pith/2SXRQQEFO4XYHSIX5HOKRKV4K4/bundle.json","state":"https://pith.science/pith/2SXRQQEFO4XYHSIX5HOKRKV4K4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2SXRQQEFO4XYHSIX5HOKRKV4K4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:2SXRQQEFO4XYHSIX5HOKRKV4K4","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":"922bd369ad8c6cb478d4a9c13bcc547b0ea67c807f42198ee4604020e50cd291","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2012-04-10T20:34:31Z","title_canon_sha256":"77b3023c8cc19827bde3c8f1504836e31ed6fb199ce06d4ed12ca6e8681fdcc6"},"schema_version":"1.0","source":{"id":"1204.2279","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.2279","created_at":"2026-05-18T03:57:28Z"},{"alias_kind":"arxiv_version","alias_value":"1204.2279v1","created_at":"2026-05-18T03:57:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.2279","created_at":"2026-05-18T03:57:28Z"},{"alias_kind":"pith_short_12","alias_value":"2SXRQQEFO4XY","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"2SXRQQEFO4XYHSIX","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"2SXRQQEF","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:0438c7b6bc87f243b04f326ccb184957bf033ca8dfa274a4398547621e2496c5","target":"graph","created_at":"2026-05-18T03:57:28Z","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 lifetimes of the first 2$^{+}$ states in the neutron-deficient $^{76,78}$Sr isotopes were measured using a unique combination of the $\\gamma$-ray line-shape method and two-step nucleon exchange reactions at intermediate energies. The transition rates for the 2$^{+}$ states were determined to be $B$(E2;2$^{+}$$\\to 0^{+}$) = 2220(270) e$^{2}$fm$^{4}$ for $^{76}$Sr and 1800(250) e$^{2}$fm$^{4}$ for $^{78}$Sr, corresponding to large deformation of $\\beta_2$ = 0.45(3) for $^{76}$Sr and 0.40(3) for $^{78}$Sr. The present data provide experimental evidence for mutually enhanced collectivity that ","authors_text":"A. Dewald, A. Gade, A. Lemasson, A. Nichols, A. Ratkiewicz, C. Fransen, C. Morse, D. Bazin, D. Weisshaar, H. Iwasaki, J. S. Berryman, K. Wimmer, P. Voss, R. Wadsworth, R. Winkler, S. McDaniel, S. Stroberg, T. Baugher","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2012-04-10T20:34:31Z","title":"Observation of mutually enhanced collectivity in self-conjugate $^{76}_{38}$Sr$_{38}$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.2279","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":"sha256:12556e382e8474b177f61e80324455127e96741f097b37ac555773de85c63606","target":"record","created_at":"2026-05-18T03:57:28Z","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":"922bd369ad8c6cb478d4a9c13bcc547b0ea67c807f42198ee4604020e50cd291","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2012-04-10T20:34:31Z","title_canon_sha256":"77b3023c8cc19827bde3c8f1504836e31ed6fb199ce06d4ed12ca6e8681fdcc6"},"schema_version":"1.0","source":{"id":"1204.2279","kind":"arxiv","version":1}},"canonical_sha256":"d4af184085772f83c917e9dca8aabc5703417bbdf9b902817ce1fd4d51214a6b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d4af184085772f83c917e9dca8aabc5703417bbdf9b902817ce1fd4d51214a6b","first_computed_at":"2026-05-18T03:57:28.175886Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:57:28.175886Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ccfJDp1S/OUfCPGDosHw8o3bCGMSm9DaPPfqMfyUBF5kFgshNCOU/hZGS2nfiviqt0xo5rN5qz5lbA/OcGHpAw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:57:28.176746Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.2279","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:12556e382e8474b177f61e80324455127e96741f097b37ac555773de85c63606","sha256:0438c7b6bc87f243b04f326ccb184957bf033ca8dfa274a4398547621e2496c5"],"state_sha256":"1aaae362d444a9637353820173d16167eed4978d5da29206508e3c03ed7a4701"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DdxwFEidVfgtMuTDHbm+wiO7tSvD6LZmnce40XmASujQSlnazipf5pDcIkul3ojTfwtDdj5qfqpiMtl8euqABA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T17:41:56.072578Z","bundle_sha256":"95ff426e2aba752f6b433869992bf1d102870782d01045adb535c06145160852"}}