{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:WUL55D5S5PO54AQNNU7HC5X7HO","short_pith_number":"pith:WUL55D5S","canonical_record":{"source":{"id":"1907.07902","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-07-18T06:51:39Z","cross_cats_sorted":[],"title_canon_sha256":"a653d6c23dc42ddd060d9eae38fd20e6313761e45d6d0db13c5fed46d0c1eae3","abstract_canon_sha256":"52fd430e34b39024ac3876c0ea338a572dee5080d974ff21cc7726f58b0c89ea"},"schema_version":"1.0"},"canonical_sha256":"b517de8fb2ebddde020d6d3e7176ff3bb7ec48b10c2aafba84f24acba339e87f","source":{"kind":"arxiv","id":"1907.07902","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.07902","created_at":"2026-05-17T23:40:15Z"},{"alias_kind":"arxiv_version","alias_value":"1907.07902v1","created_at":"2026-05-17T23:40:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.07902","created_at":"2026-05-17T23:40:15Z"},{"alias_kind":"pith_short_12","alias_value":"WUL55D5S5PO5","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"WUL55D5S5PO54AQN","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"WUL55D5S","created_at":"2026-05-18T12:33:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:WUL55D5S5PO54AQNNU7HC5X7HO","target":"record","payload":{"canonical_record":{"source":{"id":"1907.07902","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-07-18T06:51:39Z","cross_cats_sorted":[],"title_canon_sha256":"a653d6c23dc42ddd060d9eae38fd20e6313761e45d6d0db13c5fed46d0c1eae3","abstract_canon_sha256":"52fd430e34b39024ac3876c0ea338a572dee5080d974ff21cc7726f58b0c89ea"},"schema_version":"1.0"},"canonical_sha256":"b517de8fb2ebddde020d6d3e7176ff3bb7ec48b10c2aafba84f24acba339e87f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:15.761216Z","signature_b64":"adCEf2kTZkDKBhRlgDPU21Hn1gtP4iAfp7yPHd8jDqJAkRm5cQsXq0Y9/DuoqxxK5SaiWHNwpV+hFJ7TJqkFBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b517de8fb2ebddde020d6d3e7176ff3bb7ec48b10c2aafba84f24acba339e87f","last_reissued_at":"2026-05-17T23:40:15.760541Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:15.760541Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.07902","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":"2026-05-17T23:40:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CzwCGWgcuoNAbxd0smWNXcsRXjjJBZQ/FP9DnLOOplOv3mxsE2QexmuocPZo+wFtCTmW1ZnkTM++0apHymqECg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T05:15:47.238722Z"},"content_sha256":"a54f76f7d80c5239cabf9adc2cc1f17317d4992be94d16dae87ff3e3c9d50f26","schema_version":"1.0","event_id":"sha256:a54f76f7d80c5239cabf9adc2cc1f17317d4992be94d16dae87ff3e3c9d50f26"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:WUL55D5S5PO54AQNNU7HC5X7HO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Understanding Magic Numbers in Neutron-Rich Nuclei by Tensor Blocking Mechanism","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"H. -J. Ong, H. Toki, I. Tanihata, S. Terashima","submitted_at":"2019-07-18T06:51:39Z","abstract_excerpt":"A new paradigm for nuclear structure that includes blocking effects of tensor interactions is proposed. All of the recently discovered magic numbers (N=6, 14, 16, 32 and 34) in neutron-rich nuclei can be explained by the blocking effects. A large amount of binding energy is gained by high-momentum correlated pairs of nucleons produced by the tensor interaction. Such tensor correlations strongly depend on the configuration space available for exciting nucleons to 2p-2h states. When additional neutrons occupy a new orbital, the previously available configuration may be lost, resulting in a sudde"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.07902","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":"2026-05-17T23:40:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fFDtvZJwSPHle47PEyNHl6r6kdf+BEJ9agVY9Qo54YOCwKoxbxg2G3s5Se2wX7XD3kpGbSIdA6omEi+FyR96DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T05:15:47.239352Z"},"content_sha256":"d9f3d9288d31ba2401501f9a9d4a82963907635ab7eb7d12309def266b2199a9","schema_version":"1.0","event_id":"sha256:d9f3d9288d31ba2401501f9a9d4a82963907635ab7eb7d12309def266b2199a9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WUL55D5S5PO54AQNNU7HC5X7HO/bundle.json","state_url":"https://pith.science/pith/WUL55D5S5PO54AQNNU7HC5X7HO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WUL55D5S5PO54AQNNU7HC5X7HO/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":"2026-06-05T05:15:47Z","links":{"resolver":"https://pith.science/pith/WUL55D5S5PO54AQNNU7HC5X7HO","bundle":"https://pith.science/pith/WUL55D5S5PO54AQNNU7HC5X7HO/bundle.json","state":"https://pith.science/pith/WUL55D5S5PO54AQNNU7HC5X7HO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WUL55D5S5PO54AQNNU7HC5X7HO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:WUL55D5S5PO54AQNNU7HC5X7HO","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":"52fd430e34b39024ac3876c0ea338a572dee5080d974ff21cc7726f58b0c89ea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-07-18T06:51:39Z","title_canon_sha256":"a653d6c23dc42ddd060d9eae38fd20e6313761e45d6d0db13c5fed46d0c1eae3"},"schema_version":"1.0","source":{"id":"1907.07902","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.07902","created_at":"2026-05-17T23:40:15Z"},{"alias_kind":"arxiv_version","alias_value":"1907.07902v1","created_at":"2026-05-17T23:40:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.07902","created_at":"2026-05-17T23:40:15Z"},{"alias_kind":"pith_short_12","alias_value":"WUL55D5S5PO5","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"WUL55D5S5PO54AQN","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"WUL55D5S","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:d9f3d9288d31ba2401501f9a9d4a82963907635ab7eb7d12309def266b2199a9","target":"graph","created_at":"2026-05-17T23:40:15Z","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":"A new paradigm for nuclear structure that includes blocking effects of tensor interactions is proposed. All of the recently discovered magic numbers (N=6, 14, 16, 32 and 34) in neutron-rich nuclei can be explained by the blocking effects. A large amount of binding energy is gained by high-momentum correlated pairs of nucleons produced by the tensor interaction. Such tensor correlations strongly depend on the configuration space available for exciting nucleons to 2p-2h states. When additional neutrons occupy a new orbital, the previously available configuration may be lost, resulting in a sudde","authors_text":"H. -J. Ong, H. Toki, I. Tanihata, S. Terashima","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-07-18T06:51:39Z","title":"Understanding Magic Numbers in Neutron-Rich Nuclei by Tensor Blocking Mechanism"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.07902","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:a54f76f7d80c5239cabf9adc2cc1f17317d4992be94d16dae87ff3e3c9d50f26","target":"record","created_at":"2026-05-17T23:40:15Z","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":"52fd430e34b39024ac3876c0ea338a572dee5080d974ff21cc7726f58b0c89ea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-07-18T06:51:39Z","title_canon_sha256":"a653d6c23dc42ddd060d9eae38fd20e6313761e45d6d0db13c5fed46d0c1eae3"},"schema_version":"1.0","source":{"id":"1907.07902","kind":"arxiv","version":1}},"canonical_sha256":"b517de8fb2ebddde020d6d3e7176ff3bb7ec48b10c2aafba84f24acba339e87f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b517de8fb2ebddde020d6d3e7176ff3bb7ec48b10c2aafba84f24acba339e87f","first_computed_at":"2026-05-17T23:40:15.760541Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:15.760541Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"adCEf2kTZkDKBhRlgDPU21Hn1gtP4iAfp7yPHd8jDqJAkRm5cQsXq0Y9/DuoqxxK5SaiWHNwpV+hFJ7TJqkFBw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:15.761216Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.07902","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a54f76f7d80c5239cabf9adc2cc1f17317d4992be94d16dae87ff3e3c9d50f26","sha256:d9f3d9288d31ba2401501f9a9d4a82963907635ab7eb7d12309def266b2199a9"],"state_sha256":"eefde7d1c7cf8baf6cd94591aea5bb0b8a393d398573067b010293b970197303"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ExQrkTd50gwQsoPIpZgDMHs4HjxWzi5BWEWBbrd6aSH8oiDtg/WFOa42+gqclCXhDqJ+SOl6rKYHvE9dhRE7Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T05:15:47.242718Z","bundle_sha256":"8722a5e6324df63cecd66db2e3b7e5c714a484edc1e7317af39d818b40cd286e"}}