{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:CMGWR45QO64XIIKYHGO3JO75AI","short_pith_number":"pith:CMGWR45Q","canonical_record":{"source":{"id":"1301.5552","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2013-01-23T16:20:30Z","cross_cats_sorted":[],"title_canon_sha256":"55c23c5a215ea7a10d6a4ba872e6ebc61fa327b623ceb9123d45c9c07a9eca89","abstract_canon_sha256":"93627bd59869f22b14aa2e9615448a57790dc15a172f3c89c6e9075e54a1f11c"},"schema_version":"1.0"},"canonical_sha256":"130d68f3b077b9742158399db4bbfd02079664f3838789e0021fa7ac646f6009","source":{"kind":"arxiv","id":"1301.5552","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.5552","created_at":"2026-05-18T03:31:20Z"},{"alias_kind":"arxiv_version","alias_value":"1301.5552v1","created_at":"2026-05-18T03:31:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.5552","created_at":"2026-05-18T03:31:20Z"},{"alias_kind":"pith_short_12","alias_value":"CMGWR45QO64X","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"CMGWR45QO64XIIKY","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"CMGWR45Q","created_at":"2026-05-18T12:27:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:CMGWR45QO64XIIKYHGO3JO75AI","target":"record","payload":{"canonical_record":{"source":{"id":"1301.5552","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2013-01-23T16:20:30Z","cross_cats_sorted":[],"title_canon_sha256":"55c23c5a215ea7a10d6a4ba872e6ebc61fa327b623ceb9123d45c9c07a9eca89","abstract_canon_sha256":"93627bd59869f22b14aa2e9615448a57790dc15a172f3c89c6e9075e54a1f11c"},"schema_version":"1.0"},"canonical_sha256":"130d68f3b077b9742158399db4bbfd02079664f3838789e0021fa7ac646f6009","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:31:20.396552Z","signature_b64":"JIxsLX80mrytUapJbTZt1f06F+KbIkPxEKuPi2tWqgbMRONBuA6b1K7+lfCHaUXSgjd5bZiyz+ygaQxYpKJ/Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"130d68f3b077b9742158399db4bbfd02079664f3838789e0021fa7ac646f6009","last_reissued_at":"2026-05-18T03:31:20.395767Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:31:20.395767Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.5552","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":"2026-05-18T03:31:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BhXmNBgunYom0V0WgXWoXTGhBmxNmZ1nFZ8qaSQTlL83BHjb7ewJaYZObEy77gz1Npm0YjgHWQZZSETmAOk6Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T14:47:06.726715Z"},"content_sha256":"a0571b027058b090f77cc1b1b5ef9cebd08232e9ba1365d8276bcd16f0248c78","schema_version":"1.0","event_id":"sha256:a0571b027058b090f77cc1b1b5ef9cebd08232e9ba1365d8276bcd16f0248c78"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:CMGWR45QO64XIIKYHGO3JO75AI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Microscopic analysis of sub-barrier fusion enhancement in $^{132}$Sn+$^{40}$Ca vs. $^{132}$Sn+$^{48}$Ca}","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"A. S. Umar, V. E. Oberacker","submitted_at":"2013-01-23T16:20:30Z","abstract_excerpt":"We provide a theoretical analysis of recently measured fusion cross sections which show a surprising enhancement at low $E_\\mathrm{c.m.}$ energies for the system $^{132}$Sn+$^{40}$Ca as compared to the more neutron-rich system $^{132}$Sn+$^{48}$Ca. Dynamic microscopic calculations are carried out on a three-dimensional lattice with a time-dependent density-constrained density functional theory. There are no adjustable parameters, the only input is the Skyrme effective NN interaction. Heavy-ion potentials $V(R)$, coordinate-dependent mass parameters $M(R)$, and total fusion cross sections $\\sig"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.5552","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":"2026-05-18T03:31:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KrcVSyCR4fTzRfQ5wJkv5sI8g6YlkOaWVDNdiHiYyhHajKNAA+IUuCdfLMB+Ing7ST4VLFn4sn//dS+50YsjBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T14:47:06.727405Z"},"content_sha256":"bf99557ba090574b5786164ce35e3b904aafdfd1716d6d05277509ad73d086e7","schema_version":"1.0","event_id":"sha256:bf99557ba090574b5786164ce35e3b904aafdfd1716d6d05277509ad73d086e7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CMGWR45QO64XIIKYHGO3JO75AI/bundle.json","state_url":"https://pith.science/pith/CMGWR45QO64XIIKYHGO3JO75AI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CMGWR45QO64XIIKYHGO3JO75AI/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":"2026-05-29T14:47:06Z","links":{"resolver":"https://pith.science/pith/CMGWR45QO64XIIKYHGO3JO75AI","bundle":"https://pith.science/pith/CMGWR45QO64XIIKYHGO3JO75AI/bundle.json","state":"https://pith.science/pith/CMGWR45QO64XIIKYHGO3JO75AI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CMGWR45QO64XIIKYHGO3JO75AI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:CMGWR45QO64XIIKYHGO3JO75AI","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":"93627bd59869f22b14aa2e9615448a57790dc15a172f3c89c6e9075e54a1f11c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2013-01-23T16:20:30Z","title_canon_sha256":"55c23c5a215ea7a10d6a4ba872e6ebc61fa327b623ceb9123d45c9c07a9eca89"},"schema_version":"1.0","source":{"id":"1301.5552","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.5552","created_at":"2026-05-18T03:31:20Z"},{"alias_kind":"arxiv_version","alias_value":"1301.5552v1","created_at":"2026-05-18T03:31:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.5552","created_at":"2026-05-18T03:31:20Z"},{"alias_kind":"pith_short_12","alias_value":"CMGWR45QO64X","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"CMGWR45QO64XIIKY","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"CMGWR45Q","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:bf99557ba090574b5786164ce35e3b904aafdfd1716d6d05277509ad73d086e7","target":"graph","created_at":"2026-05-18T03:31:20Z","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 provide a theoretical analysis of recently measured fusion cross sections which show a surprising enhancement at low $E_\\mathrm{c.m.}$ energies for the system $^{132}$Sn+$^{40}$Ca as compared to the more neutron-rich system $^{132}$Sn+$^{48}$Ca. Dynamic microscopic calculations are carried out on a three-dimensional lattice with a time-dependent density-constrained density functional theory. There are no adjustable parameters, the only input is the Skyrme effective NN interaction. Heavy-ion potentials $V(R)$, coordinate-dependent mass parameters $M(R)$, and total fusion cross sections $\\sig","authors_text":"A. S. Umar, V. E. Oberacker","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2013-01-23T16:20:30Z","title":"Microscopic analysis of sub-barrier fusion enhancement in $^{132}$Sn+$^{40}$Ca vs. $^{132}$Sn+$^{48}$Ca}"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.5552","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:a0571b027058b090f77cc1b1b5ef9cebd08232e9ba1365d8276bcd16f0248c78","target":"record","created_at":"2026-05-18T03:31:20Z","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":"93627bd59869f22b14aa2e9615448a57790dc15a172f3c89c6e9075e54a1f11c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2013-01-23T16:20:30Z","title_canon_sha256":"55c23c5a215ea7a10d6a4ba872e6ebc61fa327b623ceb9123d45c9c07a9eca89"},"schema_version":"1.0","source":{"id":"1301.5552","kind":"arxiv","version":1}},"canonical_sha256":"130d68f3b077b9742158399db4bbfd02079664f3838789e0021fa7ac646f6009","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"130d68f3b077b9742158399db4bbfd02079664f3838789e0021fa7ac646f6009","first_computed_at":"2026-05-18T03:31:20.395767Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:31:20.395767Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JIxsLX80mrytUapJbTZt1f06F+KbIkPxEKuPi2tWqgbMRONBuA6b1K7+lfCHaUXSgjd5bZiyz+ygaQxYpKJ/Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:31:20.396552Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.5552","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a0571b027058b090f77cc1b1b5ef9cebd08232e9ba1365d8276bcd16f0248c78","sha256:bf99557ba090574b5786164ce35e3b904aafdfd1716d6d05277509ad73d086e7"],"state_sha256":"8472b19dcf8c216129ef635b4cc22574c332bf7aea6a37ad0f8c93cd5e04bd7e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7tNo5wQbBntRXnQIMMnFqQx3g8AFRInZ4GPnAPcxAExHElDJKgRpvn8yFv83kooS2IQ5I5qPJHGNWPaqvH/iCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T14:47:06.731404Z","bundle_sha256":"f010a6b74baa5199318334718d89ffdae8dcde39097a4a83d1f82e6a745f7c4f"}}