{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:4A77PQDAWHEVLDXS42GMOY3TRA","short_pith_number":"pith:4A77PQDA","canonical_record":{"source":{"id":"2506.04306","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2025-06-04T17:51:05Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"42816a80a46ef2f8c0db05c03f7105b632f31ccb10c345f39e39da44e3e0884b","abstract_canon_sha256":"fecc16e18eabb9ad89346c63a8dbbce7941760b1074ae8f972e78426046267c0"},"schema_version":"1.0"},"canonical_sha256":"e03ff7c060b1c9558ef2e68cc763738806761580e06a896496c0f5e9bc7f6acd","source":{"kind":"arxiv","id":"2506.04306","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.04306","created_at":"2026-07-05T11:16:12Z"},{"alias_kind":"arxiv_version","alias_value":"2506.04306v1","created_at":"2026-07-05T11:16:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.04306","created_at":"2026-07-05T11:16:12Z"},{"alias_kind":"pith_short_12","alias_value":"4A77PQDAWHEV","created_at":"2026-07-05T11:16:12Z"},{"alias_kind":"pith_short_16","alias_value":"4A77PQDAWHEVLDXS","created_at":"2026-07-05T11:16:12Z"},{"alias_kind":"pith_short_8","alias_value":"4A77PQDA","created_at":"2026-07-05T11:16:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:4A77PQDAWHEVLDXS42GMOY3TRA","target":"record","payload":{"canonical_record":{"source":{"id":"2506.04306","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2025-06-04T17:51:05Z","cross_cats_sorted":["astro-ph.CO","hep-th"],"title_canon_sha256":"42816a80a46ef2f8c0db05c03f7105b632f31ccb10c345f39e39da44e3e0884b","abstract_canon_sha256":"fecc16e18eabb9ad89346c63a8dbbce7941760b1074ae8f972e78426046267c0"},"schema_version":"1.0"},"canonical_sha256":"e03ff7c060b1c9558ef2e68cc763738806761580e06a896496c0f5e9bc7f6acd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:16:12.190987Z","signature_b64":"U9h7t6jE3JaT/VUqlJeACqqC4cVJ1R0VubPYA9S6r/paqyB9AB+0uMZnIBNmp/O0ucWHBbRmSFYuEEb0QuiyDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e03ff7c060b1c9558ef2e68cc763738806761580e06a896496c0f5e9bc7f6acd","last_reissued_at":"2026-07-05T11:16:12.190500Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:16:12.190500Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.04306","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":"2026-07-05T11:16:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pX9bl5BSDsH3tZFCt6D8G6tP7hAr7VHQ5rIWvfSB+PZV0hVx/h7coTuK8i7czB/XyJBnexJ3vIOOjOwMqUJnAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T19:37:15.564271Z"},"content_sha256":"550fb178e4d764c06e73187ef230c2b87b687643a59407716b5a7b58278b1eef","schema_version":"1.0","event_id":"sha256:550fb178e4d764c06e73187ef230c2b87b687643a59407716b5a7b58278b1eef"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:4A77PQDAWHEVLDXS42GMOY3TRA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Can the universe experience an AdS landscape since matter-radiation equality?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-th"],"primary_cat":"gr-qc","authors_text":"Hao Wang, Yun-Song Piao","submitted_at":"2025-06-04T17:51:05Z","abstract_excerpt":"Though an anti-de Sitter (AdS) vacuum, corresponding to a negative cosmological constant (NCC), can be not responsible for the acceleration of current universe, it might coexist with one evolving positive dark energy component at low redshift, as well as with early dark energy around the recombination to solve the Hubble tension. In this paper, we investigate the scenario with one AdS vacuum around the recombination and one at low redshift, and from both current observational and theoretical perspectives preliminarily explore the possibility that the universe experienced a landscape with multi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.04306","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2506.04306/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T11:16:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2hRgEX7xM98vvR6oLQLvcBQEWoX5YxAYfBYDfaFmLb6tJeEqfT4s3WiqMk91U/fBAEhV3qpo0n64z63r6mh3CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T19:37:15.564557Z"},"content_sha256":"52edb42d517f22e4c45797f11a26f5626dd7364a629ebc48a46b26c2c39355a4","schema_version":"1.0","event_id":"sha256:52edb42d517f22e4c45797f11a26f5626dd7364a629ebc48a46b26c2c39355a4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4A77PQDAWHEVLDXS42GMOY3TRA/bundle.json","state_url":"https://pith.science/pith/4A77PQDAWHEVLDXS42GMOY3TRA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4A77PQDAWHEVLDXS42GMOY3TRA/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":"2026-07-31T19:37:15Z","links":{"resolver":"https://pith.science/pith/4A77PQDAWHEVLDXS42GMOY3TRA","bundle":"https://pith.science/pith/4A77PQDAWHEVLDXS42GMOY3TRA/bundle.json","state":"https://pith.science/pith/4A77PQDAWHEVLDXS42GMOY3TRA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4A77PQDAWHEVLDXS42GMOY3TRA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:4A77PQDAWHEVLDXS42GMOY3TRA","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":"fecc16e18eabb9ad89346c63a8dbbce7941760b1074ae8f972e78426046267c0","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2025-06-04T17:51:05Z","title_canon_sha256":"42816a80a46ef2f8c0db05c03f7105b632f31ccb10c345f39e39da44e3e0884b"},"schema_version":"1.0","source":{"id":"2506.04306","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.04306","created_at":"2026-07-05T11:16:12Z"},{"alias_kind":"arxiv_version","alias_value":"2506.04306v1","created_at":"2026-07-05T11:16:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.04306","created_at":"2026-07-05T11:16:12Z"},{"alias_kind":"pith_short_12","alias_value":"4A77PQDAWHEV","created_at":"2026-07-05T11:16:12Z"},{"alias_kind":"pith_short_16","alias_value":"4A77PQDAWHEVLDXS","created_at":"2026-07-05T11:16:12Z"},{"alias_kind":"pith_short_8","alias_value":"4A77PQDA","created_at":"2026-07-05T11:16:12Z"}],"graph_snapshots":[{"event_id":"sha256:52edb42d517f22e4c45797f11a26f5626dd7364a629ebc48a46b26c2c39355a4","target":"graph","created_at":"2026-07-05T11:16:12Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2506.04306/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Though an anti-de Sitter (AdS) vacuum, corresponding to a negative cosmological constant (NCC), can be not responsible for the acceleration of current universe, it might coexist with one evolving positive dark energy component at low redshift, as well as with early dark energy around the recombination to solve the Hubble tension. In this paper, we investigate the scenario with one AdS vacuum around the recombination and one at low redshift, and from both current observational and theoretical perspectives preliminarily explore the possibility that the universe experienced a landscape with multi","authors_text":"Hao Wang, Yun-Song Piao","cross_cats":["astro-ph.CO","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2025-06-04T17:51:05Z","title":"Can the universe experience an AdS landscape since matter-radiation equality?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.04306","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":"sha256:550fb178e4d764c06e73187ef230c2b87b687643a59407716b5a7b58278b1eef","target":"record","created_at":"2026-07-05T11:16:12Z","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":"fecc16e18eabb9ad89346c63a8dbbce7941760b1074ae8f972e78426046267c0","cross_cats_sorted":["astro-ph.CO","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2025-06-04T17:51:05Z","title_canon_sha256":"42816a80a46ef2f8c0db05c03f7105b632f31ccb10c345f39e39da44e3e0884b"},"schema_version":"1.0","source":{"id":"2506.04306","kind":"arxiv","version":1}},"canonical_sha256":"e03ff7c060b1c9558ef2e68cc763738806761580e06a896496c0f5e9bc7f6acd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e03ff7c060b1c9558ef2e68cc763738806761580e06a896496c0f5e9bc7f6acd","first_computed_at":"2026-07-05T11:16:12.190500Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:16:12.190500Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U9h7t6jE3JaT/VUqlJeACqqC4cVJ1R0VubPYA9S6r/paqyB9AB+0uMZnIBNmp/O0ucWHBbRmSFYuEEb0QuiyDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:16:12.190987Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.04306","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:550fb178e4d764c06e73187ef230c2b87b687643a59407716b5a7b58278b1eef","sha256:52edb42d517f22e4c45797f11a26f5626dd7364a629ebc48a46b26c2c39355a4"],"state_sha256":"c4c1a3575fabb84309bd806cd324a9c820574121840a976729c4431f6854efc1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D5yyQ36VbdFPKsqyxfp8SEfjpDUXvunriE8LLA78xfhuWBgMCMyU6aEWU/RrUfqa3gJo2K88DoaLV19jPwJ1Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-31T19:37:15.566663Z","bundle_sha256":"e82fd33385f5961dab9fbddfe2bd891a99a1b7693b2d0ad202a37d41193b0650"}}