{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:72FH27KHDYGNX5L62HDBZS2N4A","short_pith_number":"pith:72FH27KH","canonical_record":{"source":{"id":"1104.0710","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2011-04-04T23:34:41Z","cross_cats_sorted":["cond-mat.quant-gas"],"title_canon_sha256":"210087572b16176b31cda1d9dc3498756f94481fcbc0230fc4dcf33da49bf44c","abstract_canon_sha256":"d6722798f0ff5e133cdf7a2c92dea617189d15ea0fe16378663451220da04c39"},"schema_version":"1.0"},"canonical_sha256":"fe8a7d7d471e0cdbf57ed1c61ccb4de018da67a17a8c6011ed203c2e698d44ea","source":{"kind":"arxiv","id":"1104.0710","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.0710","created_at":"2026-05-18T03:23:34Z"},{"alias_kind":"arxiv_version","alias_value":"1104.0710v2","created_at":"2026-05-18T03:23:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.0710","created_at":"2026-05-18T03:23:34Z"},{"alias_kind":"pith_short_12","alias_value":"72FH27KHDYGN","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"72FH27KHDYGNX5L6","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"72FH27KH","created_at":"2026-05-18T12:26:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:72FH27KHDYGNX5L62HDBZS2N4A","target":"record","payload":{"canonical_record":{"source":{"id":"1104.0710","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2011-04-04T23:34:41Z","cross_cats_sorted":["cond-mat.quant-gas"],"title_canon_sha256":"210087572b16176b31cda1d9dc3498756f94481fcbc0230fc4dcf33da49bf44c","abstract_canon_sha256":"d6722798f0ff5e133cdf7a2c92dea617189d15ea0fe16378663451220da04c39"},"schema_version":"1.0"},"canonical_sha256":"fe8a7d7d471e0cdbf57ed1c61ccb4de018da67a17a8c6011ed203c2e698d44ea","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:23:34.983237Z","signature_b64":"/6bWkdKlesnelNmriGe8Tt0FgPO8amovrukzdi+KQ9BvpVCar62zuw1hxsVsKe5DKs40UIVltEanlKUavHsfAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fe8a7d7d471e0cdbf57ed1c61ccb4de018da67a17a8c6011ed203c2e698d44ea","last_reissued_at":"2026-05-18T03:23:34.982593Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:23:34.982593Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1104.0710","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":"2026-05-18T03:23:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Lrs81L1nOeep4aRgEd9dyePMeg+hS7x8TENhIQqd4v4NepkOcLXHFsS66lLwLSMOpDnlDKXzP0KRiqW97DrNAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T19:40:53.905236Z"},"content_sha256":"a1a60a6efb520af6fb21e207366291a18b1c73bdc521e3a4817ac98250643642","schema_version":"1.0","event_id":"sha256:a1a60a6efb520af6fb21e207366291a18b1c73bdc521e3a4817ac98250643642"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:72FH27KHDYGNX5L62HDBZS2N4A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Structure, Bose-Einstein condensation and superfluidity of two-dimensional confined dipolar assemblies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.quant-gas"],"primary_cat":"cond-mat.stat-mech","authors_text":"Fabio Cinti, Massimo Boninsegni, Piyush Jain","submitted_at":"2011-04-04T23:34:41Z","abstract_excerpt":"Low temperature properties of harmonically confined two-dimensional assemblies of dipolar bosons are systematically investigated by Monte Carlo simulations. Calculations carried out for different numbers of particles and strengths of the confining potential yield evidence of a quantum phase transition from a superfluid to a crystal-like phase, consistently with what is observed in the ho- mogeneous system. It is found that the crystal phase nucleates in the center of the trap, as the density increases. Bose-Einstein condensation vanishes at T = 0 upon entering the crystalline phase, concurrent"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.0710","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":"2026-05-18T03:23:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"16Vj+bt4i9vjckugRtoVjT0mXIAc17xUTBo5Z1yAgqMmoMs1MH1EjmFb4DtuK4caGCBSCOMHVW1fE0s/AspKCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T19:40:53.905955Z"},"content_sha256":"2ed09e5402ab3008226e8e49ea42e20214604f83c12a63dbfa0b3cbc84a49d79","schema_version":"1.0","event_id":"sha256:2ed09e5402ab3008226e8e49ea42e20214604f83c12a63dbfa0b3cbc84a49d79"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/72FH27KHDYGNX5L62HDBZS2N4A/bundle.json","state_url":"https://pith.science/pith/72FH27KHDYGNX5L62HDBZS2N4A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/72FH27KHDYGNX5L62HDBZS2N4A/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":"2026-06-06T19:40:53Z","links":{"resolver":"https://pith.science/pith/72FH27KHDYGNX5L62HDBZS2N4A","bundle":"https://pith.science/pith/72FH27KHDYGNX5L62HDBZS2N4A/bundle.json","state":"https://pith.science/pith/72FH27KHDYGNX5L62HDBZS2N4A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/72FH27KHDYGNX5L62HDBZS2N4A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:72FH27KHDYGNX5L62HDBZS2N4A","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":"d6722798f0ff5e133cdf7a2c92dea617189d15ea0fe16378663451220da04c39","cross_cats_sorted":["cond-mat.quant-gas"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2011-04-04T23:34:41Z","title_canon_sha256":"210087572b16176b31cda1d9dc3498756f94481fcbc0230fc4dcf33da49bf44c"},"schema_version":"1.0","source":{"id":"1104.0710","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.0710","created_at":"2026-05-18T03:23:34Z"},{"alias_kind":"arxiv_version","alias_value":"1104.0710v2","created_at":"2026-05-18T03:23:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.0710","created_at":"2026-05-18T03:23:34Z"},{"alias_kind":"pith_short_12","alias_value":"72FH27KHDYGN","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"72FH27KHDYGNX5L6","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"72FH27KH","created_at":"2026-05-18T12:26:22Z"}],"graph_snapshots":[{"event_id":"sha256:2ed09e5402ab3008226e8e49ea42e20214604f83c12a63dbfa0b3cbc84a49d79","target":"graph","created_at":"2026-05-18T03:23:34Z","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":"Low temperature properties of harmonically confined two-dimensional assemblies of dipolar bosons are systematically investigated by Monte Carlo simulations. Calculations carried out for different numbers of particles and strengths of the confining potential yield evidence of a quantum phase transition from a superfluid to a crystal-like phase, consistently with what is observed in the ho- mogeneous system. It is found that the crystal phase nucleates in the center of the trap, as the density increases. Bose-Einstein condensation vanishes at T = 0 upon entering the crystalline phase, concurrent","authors_text":"Fabio Cinti, Massimo Boninsegni, Piyush Jain","cross_cats":["cond-mat.quant-gas"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2011-04-04T23:34:41Z","title":"Structure, Bose-Einstein condensation and superfluidity of two-dimensional confined dipolar assemblies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.0710","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:a1a60a6efb520af6fb21e207366291a18b1c73bdc521e3a4817ac98250643642","target":"record","created_at":"2026-05-18T03:23:34Z","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":"d6722798f0ff5e133cdf7a2c92dea617189d15ea0fe16378663451220da04c39","cross_cats_sorted":["cond-mat.quant-gas"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2011-04-04T23:34:41Z","title_canon_sha256":"210087572b16176b31cda1d9dc3498756f94481fcbc0230fc4dcf33da49bf44c"},"schema_version":"1.0","source":{"id":"1104.0710","kind":"arxiv","version":2}},"canonical_sha256":"fe8a7d7d471e0cdbf57ed1c61ccb4de018da67a17a8c6011ed203c2e698d44ea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fe8a7d7d471e0cdbf57ed1c61ccb4de018da67a17a8c6011ed203c2e698d44ea","first_computed_at":"2026-05-18T03:23:34.982593Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:23:34.982593Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/6bWkdKlesnelNmriGe8Tt0FgPO8amovrukzdi+KQ9BvpVCar62zuw1hxsVsKe5DKs40UIVltEanlKUavHsfAw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:23:34.983237Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.0710","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a1a60a6efb520af6fb21e207366291a18b1c73bdc521e3a4817ac98250643642","sha256:2ed09e5402ab3008226e8e49ea42e20214604f83c12a63dbfa0b3cbc84a49d79"],"state_sha256":"4c9ec8b6065c1a2807bb379f9918f03af4943007f43eb243aabce7581e67dce2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OIkUUR11Xz8b7zBzpICE33n+A+gQNscjUqVBAhxUxCfgknQekIHWu34OYGxwMDL4OVnsT9i9G+WFKbU0IkL6Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T19:40:53.909098Z","bundle_sha256":"c1dfd0e0fe3635ec0c26452261c074af2990c1a600025dc8fc70216078229495"}}