{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:X645RJYGZRV5LOT7DGSNW3KTY4","short_pith_number":"pith:X645RJYG","canonical_record":{"source":{"id":"1408.3932","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-08-18T08:42:42Z","cross_cats_sorted":["hep-th","quant-ph"],"title_canon_sha256":"07b02dccaa310474324ff99efd29f37809cb73f2de7397932e1b6da177682bad","abstract_canon_sha256":"ae962229f74f215a98cdc938f2df2c121d388f71c5a6645aefe117a3e48a8142"},"schema_version":"1.0"},"canonical_sha256":"bfb9d8a706cc6bd5ba7f19a4db6d53c71bbe5b86a0399aaa50fb22cf7d2cb130","source":{"kind":"arxiv","id":"1408.3932","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.3932","created_at":"2026-05-18T01:42:18Z"},{"alias_kind":"arxiv_version","alias_value":"1408.3932v1","created_at":"2026-05-18T01:42:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.3932","created_at":"2026-05-18T01:42:18Z"},{"alias_kind":"pith_short_12","alias_value":"X645RJYGZRV5","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"X645RJYGZRV5LOT7","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"X645RJYG","created_at":"2026-05-18T12:28:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:X645RJYGZRV5LOT7DGSNW3KTY4","target":"record","payload":{"canonical_record":{"source":{"id":"1408.3932","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-08-18T08:42:42Z","cross_cats_sorted":["hep-th","quant-ph"],"title_canon_sha256":"07b02dccaa310474324ff99efd29f37809cb73f2de7397932e1b6da177682bad","abstract_canon_sha256":"ae962229f74f215a98cdc938f2df2c121d388f71c5a6645aefe117a3e48a8142"},"schema_version":"1.0"},"canonical_sha256":"bfb9d8a706cc6bd5ba7f19a4db6d53c71bbe5b86a0399aaa50fb22cf7d2cb130","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:18.084764Z","signature_b64":"dbbSvoC9kJx3xrd3XZuEyW6/4CBUnCv6GuKV8FH1rV0F1LPMqmDBzP2dns0/c8ERedLXhNMJwq6j2+DZR43MCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bfb9d8a706cc6bd5ba7f19a4db6d53c71bbe5b86a0399aaa50fb22cf7d2cb130","last_reissued_at":"2026-05-18T01:42:18.084182Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:18.084182Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1408.3932","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":"2026-05-18T01:42:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YJ/6B0uAdwVpbOHxGamdi4TNOOYyEtU2uWhWpcAs6JDC/fRblX0XN6MCZ3mW/ea686sMvv4PsV6cyD80F/+ICw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T15:07:26.853516Z"},"content_sha256":"3ebc779d1cfa9ca75f841b7dab63b4a143da897306109fd78dedc547e594a456","schema_version":"1.0","event_id":"sha256:3ebc779d1cfa9ca75f841b7dab63b4a143da897306109fd78dedc547e594a456"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:X645RJYGZRV5LOT7DGSNW3KTY4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Single-Bubble Sonoluminescence as Dicke Superradiance at Finite Temperature","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th","quant-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Hernando Quevedo, M. Aparicio Alcalde, Nami Fux Svaiter","submitted_at":"2014-08-18T08:42:42Z","abstract_excerpt":"Sonoluminescence is a process in which a strong sound field is used to produce light in liquids. We explain sonoluminescence as a phase transition from ordinary fluorescence to a superradiant phase. We consider a spin-boson model composed of a single bosonic mode and an ensemble of $N$ identical two-level atoms. We assume that the whole system is in thermal equilibrium with a reservoir at temperature $\\beta^{-1}$. We show that, in a ultrastrong-coupling regime, between the two-level atoms and the electromagnetic field it is possible to have a cooperative interaction of the molecules of the gas"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.3932","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":"2026-05-18T01:42:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yg8ahCQQig9/W5eRjUdBp/kO31o9I+/afBnilviwfCrk92kRt4UC9H3GNDjNzFa3IO9JcAG6HBwntVj0KkoCDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T15:07:26.854156Z"},"content_sha256":"0d9eb2320bbfe7b74f9f0535780b2d82511e717d9f809fc5400e97aba643c724","schema_version":"1.0","event_id":"sha256:0d9eb2320bbfe7b74f9f0535780b2d82511e717d9f809fc5400e97aba643c724"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X645RJYGZRV5LOT7DGSNW3KTY4/bundle.json","state_url":"https://pith.science/pith/X645RJYGZRV5LOT7DGSNW3KTY4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X645RJYGZRV5LOT7DGSNW3KTY4/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":"2026-05-29T15:07:26Z","links":{"resolver":"https://pith.science/pith/X645RJYGZRV5LOT7DGSNW3KTY4","bundle":"https://pith.science/pith/X645RJYGZRV5LOT7DGSNW3KTY4/bundle.json","state":"https://pith.science/pith/X645RJYGZRV5LOT7DGSNW3KTY4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X645RJYGZRV5LOT7DGSNW3KTY4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:X645RJYGZRV5LOT7DGSNW3KTY4","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":"ae962229f74f215a98cdc938f2df2c121d388f71c5a6645aefe117a3e48a8142","cross_cats_sorted":["hep-th","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-08-18T08:42:42Z","title_canon_sha256":"07b02dccaa310474324ff99efd29f37809cb73f2de7397932e1b6da177682bad"},"schema_version":"1.0","source":{"id":"1408.3932","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.3932","created_at":"2026-05-18T01:42:18Z"},{"alias_kind":"arxiv_version","alias_value":"1408.3932v1","created_at":"2026-05-18T01:42:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.3932","created_at":"2026-05-18T01:42:18Z"},{"alias_kind":"pith_short_12","alias_value":"X645RJYGZRV5","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"X645RJYGZRV5LOT7","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"X645RJYG","created_at":"2026-05-18T12:28:57Z"}],"graph_snapshots":[{"event_id":"sha256:0d9eb2320bbfe7b74f9f0535780b2d82511e717d9f809fc5400e97aba643c724","target":"graph","created_at":"2026-05-18T01:42:18Z","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":"Sonoluminescence is a process in which a strong sound field is used to produce light in liquids. We explain sonoluminescence as a phase transition from ordinary fluorescence to a superradiant phase. We consider a spin-boson model composed of a single bosonic mode and an ensemble of $N$ identical two-level atoms. We assume that the whole system is in thermal equilibrium with a reservoir at temperature $\\beta^{-1}$. We show that, in a ultrastrong-coupling regime, between the two-level atoms and the electromagnetic field it is possible to have a cooperative interaction of the molecules of the gas","authors_text":"Hernando Quevedo, M. Aparicio Alcalde, Nami Fux Svaiter","cross_cats":["hep-th","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-08-18T08:42:42Z","title":"Single-Bubble Sonoluminescence as Dicke Superradiance at Finite Temperature"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.3932","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":"sha256:3ebc779d1cfa9ca75f841b7dab63b4a143da897306109fd78dedc547e594a456","target":"record","created_at":"2026-05-18T01:42:18Z","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":"ae962229f74f215a98cdc938f2df2c121d388f71c5a6645aefe117a3e48a8142","cross_cats_sorted":["hep-th","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-08-18T08:42:42Z","title_canon_sha256":"07b02dccaa310474324ff99efd29f37809cb73f2de7397932e1b6da177682bad"},"schema_version":"1.0","source":{"id":"1408.3932","kind":"arxiv","version":1}},"canonical_sha256":"bfb9d8a706cc6bd5ba7f19a4db6d53c71bbe5b86a0399aaa50fb22cf7d2cb130","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bfb9d8a706cc6bd5ba7f19a4db6d53c71bbe5b86a0399aaa50fb22cf7d2cb130","first_computed_at":"2026-05-18T01:42:18.084182Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:18.084182Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dbbSvoC9kJx3xrd3XZuEyW6/4CBUnCv6GuKV8FH1rV0F1LPMqmDBzP2dns0/c8ERedLXhNMJwq6j2+DZR43MCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:18.084764Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.3932","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3ebc779d1cfa9ca75f841b7dab63b4a143da897306109fd78dedc547e594a456","sha256:0d9eb2320bbfe7b74f9f0535780b2d82511e717d9f809fc5400e97aba643c724"],"state_sha256":"04d8aa6f8a13e87069427a0dc5a82dacce5a3160e507351145cbe69316f0719f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T1muJCHab/DVqIem2Yi0INdlTI+2u62e8IT6VB4uByxxND4/s+YJhHr59KDepsExiQRm95csdAvBfgmXDEZlAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T15:07:26.857431Z","bundle_sha256":"e3c3f1f025568f6ac8a7db360e7666938053d32299cd50e2c15a89b60924fb7d"}}