{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:5DYSZKECWZF7VDSMRINFONBJ5O","short_pith_number":"pith:5DYSZKEC","canonical_record":{"source":{"id":"1106.3853","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2011-06-20T10:01:57Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"4e9eabcf74be520d9e2ce6b9eff5b0dff13da2ab37d485c0e0ac7cdf65592329","abstract_canon_sha256":"40e3600ac1ff8b65430e0ba4603c0093263d1d30f63e564dba4cac4002827fea"},"schema_version":"1.0"},"canonical_sha256":"e8f12ca882b64bfa8e4c8a1a573429eb8a6d8ea4eb41af5a44e3984b011525e4","source":{"kind":"arxiv","id":"1106.3853","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.3853","created_at":"2026-05-18T04:07:17Z"},{"alias_kind":"arxiv_version","alias_value":"1106.3853v2","created_at":"2026-05-18T04:07:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.3853","created_at":"2026-05-18T04:07:17Z"},{"alias_kind":"pith_short_12","alias_value":"5DYSZKECWZF7","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"5DYSZKECWZF7VDSM","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"5DYSZKEC","created_at":"2026-05-18T12:26:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:5DYSZKECWZF7VDSMRINFONBJ5O","target":"record","payload":{"canonical_record":{"source":{"id":"1106.3853","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2011-06-20T10:01:57Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"4e9eabcf74be520d9e2ce6b9eff5b0dff13da2ab37d485c0e0ac7cdf65592329","abstract_canon_sha256":"40e3600ac1ff8b65430e0ba4603c0093263d1d30f63e564dba4cac4002827fea"},"schema_version":"1.0"},"canonical_sha256":"e8f12ca882b64bfa8e4c8a1a573429eb8a6d8ea4eb41af5a44e3984b011525e4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:07:17.667352Z","signature_b64":"M5w3xka1N5ofv9rXEN3Isujyo7Iv1bjI7ih985Ff1aBSUNrQUlFuFB5Y/st8sRgjj3ozx+EBJKax+RwWZ8ZIDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e8f12ca882b64bfa8e4c8a1a573429eb8a6d8ea4eb41af5a44e3984b011525e4","last_reissued_at":"2026-05-18T04:07:17.666597Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:07:17.666597Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1106.3853","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:07:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k9CWJ2hkf6iy4m6uug6kPQwmh1WFbQmYJB20D1i5uBzouUd3gHIt2QlK6xfqdNQBF/DnQHM9G2OsIaEuIUCJBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T19:50:42.399872Z"},"content_sha256":"e66df659318fdef31282101bf2196123f698e203d9e1ee4b910954eb59fcb47f","schema_version":"1.0","event_id":"sha256:e66df659318fdef31282101bf2196123f698e203d9e1ee4b910954eb59fcb47f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:5DYSZKECWZF7VDSMRINFONBJ5O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spectra of helium clusters with up to six atoms using soft core potentials","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"physics.atm-clus","authors_text":"A. Kievsky, M. Gattobigio, M. Viviani","submitted_at":"2011-06-20T10:01:57Z","abstract_excerpt":"In this work we investigate small clusters of helium atoms using the hyperspherical harmonic basis. We consider systems with $A=2,3,4,5,6$ atoms with an inter-particle potential which does not present a strong repulsion at short distances. We use an attractive gaussian potential that reproduces the values of the dimer binding energy, the atom-atom scattering length, and the effective range obtained with one of the widely used He-He interactions, the LM2M2 potential. In systems with more than two atoms we consider a repulsive three-body force that, by construction, reproduces the trimer binding"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.3853","kind":"arxiv","version":2},"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":"2026-05-18T04:07:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZhQfeFKll6Wjr77OLgntQbqwZcxiVhAKBXLnREenp7MlQky8uq/bZ+sDkSZTNHkH5150oBd69YwoQnrHWowFDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T19:50:42.400627Z"},"content_sha256":"31a8a58c39b5fdb4b9a6266b090c5b8592504f3975910fc9c40a71ccd7faa584","schema_version":"1.0","event_id":"sha256:31a8a58c39b5fdb4b9a6266b090c5b8592504f3975910fc9c40a71ccd7faa584"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5DYSZKECWZF7VDSMRINFONBJ5O/bundle.json","state_url":"https://pith.science/pith/5DYSZKECWZF7VDSMRINFONBJ5O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5DYSZKECWZF7VDSMRINFONBJ5O/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":"2026-05-31T19:50:42Z","links":{"resolver":"https://pith.science/pith/5DYSZKECWZF7VDSMRINFONBJ5O","bundle":"https://pith.science/pith/5DYSZKECWZF7VDSMRINFONBJ5O/bundle.json","state":"https://pith.science/pith/5DYSZKECWZF7VDSMRINFONBJ5O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5DYSZKECWZF7VDSMRINFONBJ5O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:5DYSZKECWZF7VDSMRINFONBJ5O","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":"40e3600ac1ff8b65430e0ba4603c0093263d1d30f63e564dba4cac4002827fea","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2011-06-20T10:01:57Z","title_canon_sha256":"4e9eabcf74be520d9e2ce6b9eff5b0dff13da2ab37d485c0e0ac7cdf65592329"},"schema_version":"1.0","source":{"id":"1106.3853","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1106.3853","created_at":"2026-05-18T04:07:17Z"},{"alias_kind":"arxiv_version","alias_value":"1106.3853v2","created_at":"2026-05-18T04:07:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.3853","created_at":"2026-05-18T04:07:17Z"},{"alias_kind":"pith_short_12","alias_value":"5DYSZKECWZF7","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"5DYSZKECWZF7VDSM","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"5DYSZKEC","created_at":"2026-05-18T12:26:20Z"}],"graph_snapshots":[{"event_id":"sha256:31a8a58c39b5fdb4b9a6266b090c5b8592504f3975910fc9c40a71ccd7faa584","target":"graph","created_at":"2026-05-18T04:07:17Z","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":"In this work we investigate small clusters of helium atoms using the hyperspherical harmonic basis. We consider systems with $A=2,3,4,5,6$ atoms with an inter-particle potential which does not present a strong repulsion at short distances. We use an attractive gaussian potential that reproduces the values of the dimer binding energy, the atom-atom scattering length, and the effective range obtained with one of the widely used He-He interactions, the LM2M2 potential. In systems with more than two atoms we consider a repulsive three-body force that, by construction, reproduces the trimer binding","authors_text":"A. Kievsky, M. Gattobigio, M. Viviani","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2011-06-20T10:01:57Z","title":"Spectra of helium clusters with up to six atoms using soft core potentials"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.3853","kind":"arxiv","version":2},"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:e66df659318fdef31282101bf2196123f698e203d9e1ee4b910954eb59fcb47f","target":"record","created_at":"2026-05-18T04:07:17Z","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":"40e3600ac1ff8b65430e0ba4603c0093263d1d30f63e564dba4cac4002827fea","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2011-06-20T10:01:57Z","title_canon_sha256":"4e9eabcf74be520d9e2ce6b9eff5b0dff13da2ab37d485c0e0ac7cdf65592329"},"schema_version":"1.0","source":{"id":"1106.3853","kind":"arxiv","version":2}},"canonical_sha256":"e8f12ca882b64bfa8e4c8a1a573429eb8a6d8ea4eb41af5a44e3984b011525e4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e8f12ca882b64bfa8e4c8a1a573429eb8a6d8ea4eb41af5a44e3984b011525e4","first_computed_at":"2026-05-18T04:07:17.666597Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:07:17.666597Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"M5w3xka1N5ofv9rXEN3Isujyo7Iv1bjI7ih985Ff1aBSUNrQUlFuFB5Y/st8sRgjj3ozx+EBJKax+RwWZ8ZIDg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:07:17.667352Z","signed_message":"canonical_sha256_bytes"},"source_id":"1106.3853","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e66df659318fdef31282101bf2196123f698e203d9e1ee4b910954eb59fcb47f","sha256:31a8a58c39b5fdb4b9a6266b090c5b8592504f3975910fc9c40a71ccd7faa584"],"state_sha256":"bfe24fdef3e6a82b1e22d8456ec70db64d044142105f013a6505f43d403fff10"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8GUSQgGKWPamVn5oeDfKxyHOr3S+FYoY4jgZCJvVMc8eqoqNE4DaJ6f6NtqYILYiqQCUzOPEdHPkSrtGePAEAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T19:50:42.404822Z","bundle_sha256":"eb3e1cbe77a995d3357fc1dfdb9dd48524bde999c71e6b9ce8de588f25172b9a"}}