{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:ZQ4AMBBMGFOAYV6OKHYGBP7YGX","short_pith_number":"pith:ZQ4AMBBM","canonical_record":{"source":{"id":"1111.1970","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-11-08T16:53:29Z","cross_cats_sorted":[],"title_canon_sha256":"0a796a4211c29ad919c1d782b4197d9c53dcc1d6e4746561053dc9c11386f63c","abstract_canon_sha256":"280f0f3c06d861444d55f689b10098f1a5babd001db711a455838c4e50652971"},"schema_version":"1.0"},"canonical_sha256":"cc3806042c315c0c57ce51f060bff835fba4ac42fe3575c1fa17de1fc84b7f6d","source":{"kind":"arxiv","id":"1111.1970","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.1970","created_at":"2026-05-18T04:09:03Z"},{"alias_kind":"arxiv_version","alias_value":"1111.1970v1","created_at":"2026-05-18T04:09:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.1970","created_at":"2026-05-18T04:09:03Z"},{"alias_kind":"pith_short_12","alias_value":"ZQ4AMBBMGFOA","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"ZQ4AMBBMGFOAYV6O","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"ZQ4AMBBM","created_at":"2026-05-18T12:26:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:ZQ4AMBBMGFOAYV6OKHYGBP7YGX","target":"record","payload":{"canonical_record":{"source":{"id":"1111.1970","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-11-08T16:53:29Z","cross_cats_sorted":[],"title_canon_sha256":"0a796a4211c29ad919c1d782b4197d9c53dcc1d6e4746561053dc9c11386f63c","abstract_canon_sha256":"280f0f3c06d861444d55f689b10098f1a5babd001db711a455838c4e50652971"},"schema_version":"1.0"},"canonical_sha256":"cc3806042c315c0c57ce51f060bff835fba4ac42fe3575c1fa17de1fc84b7f6d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:09:03.687963Z","signature_b64":"KyvqksBLj1v8jv3AUsgkW5YrFYRx8ylfE+ubIFtiP8v03wMwaUUOpU/PGDRBxr4+wfXVxy/Mbe4aHlYPWEIlAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cc3806042c315c0c57ce51f060bff835fba4ac42fe3575c1fa17de1fc84b7f6d","last_reissued_at":"2026-05-18T04:09:03.687512Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:09:03.687512Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1111.1970","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":"2026-05-18T04:09:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sDEzgTttIYtbiNqLXDoZ0tXrYuVeMI2sC8HnxtqCGiMETToOjKP4aVwmUwtrTfbMmLL1SoXsi5Om95sYk/7qCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:59:46.260100Z"},"content_sha256":"c041e2302b37ce0519dc346f118a3f6f9fc08d4904ef685c63a9b1231881cd43","schema_version":"1.0","event_id":"sha256:c041e2302b37ce0519dc346f118a3f6f9fc08d4904ef685c63a9b1231881cd43"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:ZQ4AMBBMGFOAYV6OKHYGBP7YGX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The cluster-core model for halo-structure of light nuclei at the drip lines","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"G. Munzenberg, M. Balasubramaniam, Raj K. Gupta, Sushil Kumar, Werner Scheid","submitted_at":"2011-11-08T16:53:29Z","abstract_excerpt":"Nuclei at both the neutron- and proton-drip lines are studied. In the cluster-core model, the halo-structure of all the observed and proposed cases of neutron- or proton-halos is investigated in terms of simple potential energy surfaces calculated as the sum of binding energies, Coulomb repulsion, nuclear proximity attraction and the centrifugal potential for all the possible cluster+core configurations of a nucleus. The clusters of neutrons and protons are taken to be unbound, with additional Coulomb energy added for proton-clusters. The model predictions agree with the available experimental"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.1970","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":"2026-05-18T04:09:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jhUTGxKrHQ6DIhWRt9b5rF8UqsoAHFoLU8AwHeyVbU0EXFmAdFG8Fq3J/JZoNrTQ0esZqWQMiRIzszaWNpTfAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:59:46.260454Z"},"content_sha256":"f4d90f26301d55ad07777040809c7900436756c49d392d9a06d52adf8f34b8ff","schema_version":"1.0","event_id":"sha256:f4d90f26301d55ad07777040809c7900436756c49d392d9a06d52adf8f34b8ff"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZQ4AMBBMGFOAYV6OKHYGBP7YGX/bundle.json","state_url":"https://pith.science/pith/ZQ4AMBBMGFOAYV6OKHYGBP7YGX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZQ4AMBBMGFOAYV6OKHYGBP7YGX/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":"2026-06-08T21:59:46Z","links":{"resolver":"https://pith.science/pith/ZQ4AMBBMGFOAYV6OKHYGBP7YGX","bundle":"https://pith.science/pith/ZQ4AMBBMGFOAYV6OKHYGBP7YGX/bundle.json","state":"https://pith.science/pith/ZQ4AMBBMGFOAYV6OKHYGBP7YGX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZQ4AMBBMGFOAYV6OKHYGBP7YGX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:ZQ4AMBBMGFOAYV6OKHYGBP7YGX","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":"280f0f3c06d861444d55f689b10098f1a5babd001db711a455838c4e50652971","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-11-08T16:53:29Z","title_canon_sha256":"0a796a4211c29ad919c1d782b4197d9c53dcc1d6e4746561053dc9c11386f63c"},"schema_version":"1.0","source":{"id":"1111.1970","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.1970","created_at":"2026-05-18T04:09:03Z"},{"alias_kind":"arxiv_version","alias_value":"1111.1970v1","created_at":"2026-05-18T04:09:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.1970","created_at":"2026-05-18T04:09:03Z"},{"alias_kind":"pith_short_12","alias_value":"ZQ4AMBBMGFOA","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_16","alias_value":"ZQ4AMBBMGFOAYV6O","created_at":"2026-05-18T12:26:50Z"},{"alias_kind":"pith_short_8","alias_value":"ZQ4AMBBM","created_at":"2026-05-18T12:26:50Z"}],"graph_snapshots":[{"event_id":"sha256:f4d90f26301d55ad07777040809c7900436756c49d392d9a06d52adf8f34b8ff","target":"graph","created_at":"2026-05-18T04:09:03Z","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":"Nuclei at both the neutron- and proton-drip lines are studied. In the cluster-core model, the halo-structure of all the observed and proposed cases of neutron- or proton-halos is investigated in terms of simple potential energy surfaces calculated as the sum of binding energies, Coulomb repulsion, nuclear proximity attraction and the centrifugal potential for all the possible cluster+core configurations of a nucleus. The clusters of neutrons and protons are taken to be unbound, with additional Coulomb energy added for proton-clusters. The model predictions agree with the available experimental","authors_text":"G. Munzenberg, M. Balasubramaniam, Raj K. Gupta, Sushil Kumar, Werner Scheid","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-11-08T16:53:29Z","title":"The cluster-core model for halo-structure of light nuclei at the drip lines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.1970","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:c041e2302b37ce0519dc346f118a3f6f9fc08d4904ef685c63a9b1231881cd43","target":"record","created_at":"2026-05-18T04:09:03Z","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":"280f0f3c06d861444d55f689b10098f1a5babd001db711a455838c4e50652971","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2011-11-08T16:53:29Z","title_canon_sha256":"0a796a4211c29ad919c1d782b4197d9c53dcc1d6e4746561053dc9c11386f63c"},"schema_version":"1.0","source":{"id":"1111.1970","kind":"arxiv","version":1}},"canonical_sha256":"cc3806042c315c0c57ce51f060bff835fba4ac42fe3575c1fa17de1fc84b7f6d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cc3806042c315c0c57ce51f060bff835fba4ac42fe3575c1fa17de1fc84b7f6d","first_computed_at":"2026-05-18T04:09:03.687512Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:09:03.687512Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KyvqksBLj1v8jv3AUsgkW5YrFYRx8ylfE+ubIFtiP8v03wMwaUUOpU/PGDRBxr4+wfXVxy/Mbe4aHlYPWEIlAA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:09:03.687963Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.1970","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c041e2302b37ce0519dc346f118a3f6f9fc08d4904ef685c63a9b1231881cd43","sha256:f4d90f26301d55ad07777040809c7900436756c49d392d9a06d52adf8f34b8ff"],"state_sha256":"2a49ff3a33a4067f48e408a4b6702395d808545ab88737efb2f017e71543032d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5WiFfCoPveKqw9CFMLnRCLloTJjdRwIYNZTi7fVSWoF+e0Bh8h7HoD8BjR8e4Ru2b9pVEMPjAp+XJMbqvlLvDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T21:59:46.262242Z","bundle_sha256":"1c164be56967744c985145f3df0832798e9b0a3d11c371b4506978c0b4481641"}}