{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:LBVMRAWFJVVX7NQHHXAQFCMGQ7","short_pith_number":"pith:LBVMRAWF","canonical_record":{"source":{"id":"1612.01921","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-12-06T17:39:37Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"b349a150d85675161d29ac896867b5ae3ec92a7e74161f5d8fb508a4789c0468","abstract_canon_sha256":"bf76c5776b943179b67ceafda27fb5cc1ced9642fd78baede419fe38673074e1"},"schema_version":"1.0"},"canonical_sha256":"586ac882c54d6b7fb6073dc102898687d3b9171ff05b8f89d65ee32c5ed01827","source":{"kind":"arxiv","id":"1612.01921","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.01921","created_at":"2026-05-18T00:33:22Z"},{"alias_kind":"arxiv_version","alias_value":"1612.01921v1","created_at":"2026-05-18T00:33:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.01921","created_at":"2026-05-18T00:33:22Z"},{"alias_kind":"pith_short_12","alias_value":"LBVMRAWFJVVX","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LBVMRAWFJVVX7NQH","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LBVMRAWF","created_at":"2026-05-18T12:30:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:LBVMRAWFJVVX7NQHHXAQFCMGQ7","target":"record","payload":{"canonical_record":{"source":{"id":"1612.01921","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-12-06T17:39:37Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"b349a150d85675161d29ac896867b5ae3ec92a7e74161f5d8fb508a4789c0468","abstract_canon_sha256":"bf76c5776b943179b67ceafda27fb5cc1ced9642fd78baede419fe38673074e1"},"schema_version":"1.0"},"canonical_sha256":"586ac882c54d6b7fb6073dc102898687d3b9171ff05b8f89d65ee32c5ed01827","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:33:22.196910Z","signature_b64":"kbNf9N4sEJRYsOnyzC+iQFQYlTslGkxVXBj1MqXj9NmVuFdlXkxf2GUt7jm267wU6e3az6jk6CTptckJB3CRBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"586ac882c54d6b7fb6073dc102898687d3b9171ff05b8f89d65ee32c5ed01827","last_reissued_at":"2026-05-18T00:33:22.196034Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:33:22.196034Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1612.01921","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":"2026-05-18T00:33:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HoE+KciiSm29fbvBpfWotqmx+Jt+8gKAnXGi2cVc3yj1UM4iS3UfI5FKVQ3AC4TNttxbv2S08zEHfcffKQ7oBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T01:45:26.514763Z"},"content_sha256":"6db4d23f144cc52dc54d745e1629aba9866da430d84dedbd2f3e52e768a133f2","schema_version":"1.0","event_id":"sha256:6db4d23f144cc52dc54d745e1629aba9866da430d84dedbd2f3e52e768a133f2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:LBVMRAWFJVVX7NQHHXAQFCMGQ7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A thermodynamic point of view on dark energy models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Antonio Troisi, Ninfa Radicella, Vincenzo F. Cardone","submitted_at":"2016-12-06T17:39:37Z","abstract_excerpt":"We present a conjugate analysis of two different dark energy models investigating both their agreement with recent data and their thermodynamical properties. The successful match with the data allows to both constrain the model parameters and characterize their kinematical properties. As a novel step, we exploit the strong connection between gravity and thermodynamics to further check models viability by investigating their thermodynamical quantities. In particular, we study whether the cosmological scenario fulfills the generalized second law of thermodynamics and, moreover, we contrast the t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.01921","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":"2026-05-18T00:33:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RmE6wgdHjpDL6zQeJqMVfupf0rroymKJ3eTH3wLnjq/yDykweUfVste4WqMMvOk0wn2myYcoQFQ1Sud9TQLNCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T01:45:26.515116Z"},"content_sha256":"b46efea7f0e19ea3696090e78b15ca1baceb4b54c3e531ad346a321b396b99fc","schema_version":"1.0","event_id":"sha256:b46efea7f0e19ea3696090e78b15ca1baceb4b54c3e531ad346a321b396b99fc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LBVMRAWFJVVX7NQHHXAQFCMGQ7/bundle.json","state_url":"https://pith.science/pith/LBVMRAWFJVVX7NQHHXAQFCMGQ7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LBVMRAWFJVVX7NQHHXAQFCMGQ7/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":"2026-06-12T01:45:26Z","links":{"resolver":"https://pith.science/pith/LBVMRAWFJVVX7NQHHXAQFCMGQ7","bundle":"https://pith.science/pith/LBVMRAWFJVVX7NQHHXAQFCMGQ7/bundle.json","state":"https://pith.science/pith/LBVMRAWFJVVX7NQHHXAQFCMGQ7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LBVMRAWFJVVX7NQHHXAQFCMGQ7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:LBVMRAWFJVVX7NQHHXAQFCMGQ7","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":"bf76c5776b943179b67ceafda27fb5cc1ced9642fd78baede419fe38673074e1","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-12-06T17:39:37Z","title_canon_sha256":"b349a150d85675161d29ac896867b5ae3ec92a7e74161f5d8fb508a4789c0468"},"schema_version":"1.0","source":{"id":"1612.01921","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.01921","created_at":"2026-05-18T00:33:22Z"},{"alias_kind":"arxiv_version","alias_value":"1612.01921v1","created_at":"2026-05-18T00:33:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.01921","created_at":"2026-05-18T00:33:22Z"},{"alias_kind":"pith_short_12","alias_value":"LBVMRAWFJVVX","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LBVMRAWFJVVX7NQH","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LBVMRAWF","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:b46efea7f0e19ea3696090e78b15ca1baceb4b54c3e531ad346a321b396b99fc","target":"graph","created_at":"2026-05-18T00:33:22Z","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":"We present a conjugate analysis of two different dark energy models investigating both their agreement with recent data and their thermodynamical properties. The successful match with the data allows to both constrain the model parameters and characterize their kinematical properties. As a novel step, we exploit the strong connection between gravity and thermodynamics to further check models viability by investigating their thermodynamical quantities. In particular, we study whether the cosmological scenario fulfills the generalized second law of thermodynamics and, moreover, we contrast the t","authors_text":"Antonio Troisi, Ninfa Radicella, Vincenzo F. Cardone","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-12-06T17:39:37Z","title":"A thermodynamic point of view on dark energy models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.01921","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":"sha256:6db4d23f144cc52dc54d745e1629aba9866da430d84dedbd2f3e52e768a133f2","target":"record","created_at":"2026-05-18T00:33:22Z","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":"bf76c5776b943179b67ceafda27fb5cc1ced9642fd78baede419fe38673074e1","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-12-06T17:39:37Z","title_canon_sha256":"b349a150d85675161d29ac896867b5ae3ec92a7e74161f5d8fb508a4789c0468"},"schema_version":"1.0","source":{"id":"1612.01921","kind":"arxiv","version":1}},"canonical_sha256":"586ac882c54d6b7fb6073dc102898687d3b9171ff05b8f89d65ee32c5ed01827","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"586ac882c54d6b7fb6073dc102898687d3b9171ff05b8f89d65ee32c5ed01827","first_computed_at":"2026-05-18T00:33:22.196034Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:33:22.196034Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kbNf9N4sEJRYsOnyzC+iQFQYlTslGkxVXBj1MqXj9NmVuFdlXkxf2GUt7jm267wU6e3az6jk6CTptckJB3CRBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:33:22.196910Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.01921","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6db4d23f144cc52dc54d745e1629aba9866da430d84dedbd2f3e52e768a133f2","sha256:b46efea7f0e19ea3696090e78b15ca1baceb4b54c3e531ad346a321b396b99fc"],"state_sha256":"4737565f2db4d413b1ebb765e9ceef452574bc66aa07842ff893cff994c5e691"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LXJk5EkjUS8fHfRmnPfCu1auU7eHaMrhcRHShQGDIQjkO7ZY920NZ5fUdk5Aq0WqzzRHnfx5cgDnLXCXpcS8Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-12T01:45:26.517035Z","bundle_sha256":"78cb889867aac2f935f8df04d1ad90bc563752fbb3002ffd2f4e7c857409d2ce"}}