{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:4RJ4KLYB2YAHGJMP66F4C4ICC2","short_pith_number":"pith:4RJ4KLYB","canonical_record":{"source":{"id":"2402.18248","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-02-28T11:21:50Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"eb00672896df0d1af55b72abbf9cb5856357b7c38cadf11fd22e2be682684ec1","abstract_canon_sha256":"1033b2fd5d94b8c96536973bee8b436efa70628a8bfb11f71f1be3d841f66361"},"schema_version":"1.0"},"canonical_sha256":"e453c52f01d60073258ff78bc1710216b78ab90708f203d5b004ec97fb41c418","source":{"kind":"arxiv","id":"2402.18248","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.18248","created_at":"2026-07-05T07:50:14Z"},{"alias_kind":"arxiv_version","alias_value":"2402.18248v1","created_at":"2026-07-05T07:50:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.18248","created_at":"2026-07-05T07:50:14Z"},{"alias_kind":"pith_short_12","alias_value":"4RJ4KLYB2YAH","created_at":"2026-07-05T07:50:14Z"},{"alias_kind":"pith_short_16","alias_value":"4RJ4KLYB2YAHGJMP","created_at":"2026-07-05T07:50:14Z"},{"alias_kind":"pith_short_8","alias_value":"4RJ4KLYB","created_at":"2026-07-05T07:50:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:4RJ4KLYB2YAHGJMP66F4C4ICC2","target":"record","payload":{"canonical_record":{"source":{"id":"2402.18248","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-02-28T11:21:50Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"eb00672896df0d1af55b72abbf9cb5856357b7c38cadf11fd22e2be682684ec1","abstract_canon_sha256":"1033b2fd5d94b8c96536973bee8b436efa70628a8bfb11f71f1be3d841f66361"},"schema_version":"1.0"},"canonical_sha256":"e453c52f01d60073258ff78bc1710216b78ab90708f203d5b004ec97fb41c418","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:50:14.240634Z","signature_b64":"qLOdbHaO92jCbt0OeOOMbkGKw91mgO4Q3jxASoVea8FTkJa+pKR27Um8xGV/Y4GOOabf2Bp+jGGDvwwRclvpAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e453c52f01d60073258ff78bc1710216b78ab90708f203d5b004ec97fb41c418","last_reissued_at":"2026-07-05T07:50:14.240216Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:50:14.240216Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2402.18248","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":"2026-07-05T07:50:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"62biSYnWlil9tNpfDpT/mczRtEtEdZSVlOmtOSNbiLAUhHKOiLWvQBFVSASB/O8C2GcMAHBcgdrRGMoRQGNaDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T03:02:41.122293Z"},"content_sha256":"e453c4af36bbb7200490003d87e02644c27227631a53a01b1680515ace3ea6a9","schema_version":"1.0","event_id":"sha256:e453c4af36bbb7200490003d87e02644c27227631a53a01b1680515ace3ea6a9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:4RJ4KLYB2YAHGJMP66F4C4ICC2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Lighting Dark Ages with Tomographic ISW Effect","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Deng Wang, Olga Mena","submitted_at":"2024-02-28T11:21:50Z","abstract_excerpt":"The integrated Sachs-Wolfe effect (ISW) describes how CMB photons pick up a net blue or redshift when traversing the time-varying gravitational potentials between the last scattering surface and us. Deviations from its standard amplitude could hint new physics. We show that reconstructing the amplitude of the ISW effect as a function of the redshift may provide a unique tool to probe the gravity sector during the era of dark ages, inaccessible via other cosmological observables. Exploiting Planck CMB temperature, polarization and lensing observations, we find a $2\\sigma$ deviation from the sta"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.18248","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/2402.18248/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":"2026-07-05T07:50:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TU/lbawnOmwi0G4zLLXjSpTVrSa8/pK69XotM9WGSzx1I58i5LMh+IJf1vEqPbT5UMIaqOjqMZYaIy/1d6R8Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T03:02:41.122983Z"},"content_sha256":"ef992c75b1bb04fd31ec3e2a5c4b75f538db954fea66a118851cee22251991aa","schema_version":"1.0","event_id":"sha256:ef992c75b1bb04fd31ec3e2a5c4b75f538db954fea66a118851cee22251991aa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4RJ4KLYB2YAHGJMP66F4C4ICC2/bundle.json","state_url":"https://pith.science/pith/4RJ4KLYB2YAHGJMP66F4C4ICC2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4RJ4KLYB2YAHGJMP66F4C4ICC2/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":"2026-08-09T03:02:41Z","links":{"resolver":"https://pith.science/pith/4RJ4KLYB2YAHGJMP66F4C4ICC2","bundle":"https://pith.science/pith/4RJ4KLYB2YAHGJMP66F4C4ICC2/bundle.json","state":"https://pith.science/pith/4RJ4KLYB2YAHGJMP66F4C4ICC2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4RJ4KLYB2YAHGJMP66F4C4ICC2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:4RJ4KLYB2YAHGJMP66F4C4ICC2","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":"1033b2fd5d94b8c96536973bee8b436efa70628a8bfb11f71f1be3d841f66361","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-02-28T11:21:50Z","title_canon_sha256":"eb00672896df0d1af55b72abbf9cb5856357b7c38cadf11fd22e2be682684ec1"},"schema_version":"1.0","source":{"id":"2402.18248","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.18248","created_at":"2026-07-05T07:50:14Z"},{"alias_kind":"arxiv_version","alias_value":"2402.18248v1","created_at":"2026-07-05T07:50:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.18248","created_at":"2026-07-05T07:50:14Z"},{"alias_kind":"pith_short_12","alias_value":"4RJ4KLYB2YAH","created_at":"2026-07-05T07:50:14Z"},{"alias_kind":"pith_short_16","alias_value":"4RJ4KLYB2YAHGJMP","created_at":"2026-07-05T07:50:14Z"},{"alias_kind":"pith_short_8","alias_value":"4RJ4KLYB","created_at":"2026-07-05T07:50:14Z"}],"graph_snapshots":[{"event_id":"sha256:ef992c75b1bb04fd31ec3e2a5c4b75f538db954fea66a118851cee22251991aa","target":"graph","created_at":"2026-07-05T07:50:14Z","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/2402.18248/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The integrated Sachs-Wolfe effect (ISW) describes how CMB photons pick up a net blue or redshift when traversing the time-varying gravitational potentials between the last scattering surface and us. Deviations from its standard amplitude could hint new physics. We show that reconstructing the amplitude of the ISW effect as a function of the redshift may provide a unique tool to probe the gravity sector during the era of dark ages, inaccessible via other cosmological observables. Exploiting Planck CMB temperature, polarization and lensing observations, we find a $2\\sigma$ deviation from the sta","authors_text":"Deng Wang, Olga Mena","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-02-28T11:21:50Z","title":"Lighting Dark Ages with Tomographic ISW Effect"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.18248","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:e453c4af36bbb7200490003d87e02644c27227631a53a01b1680515ace3ea6a9","target":"record","created_at":"2026-07-05T07:50:14Z","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":"1033b2fd5d94b8c96536973bee8b436efa70628a8bfb11f71f1be3d841f66361","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-02-28T11:21:50Z","title_canon_sha256":"eb00672896df0d1af55b72abbf9cb5856357b7c38cadf11fd22e2be682684ec1"},"schema_version":"1.0","source":{"id":"2402.18248","kind":"arxiv","version":1}},"canonical_sha256":"e453c52f01d60073258ff78bc1710216b78ab90708f203d5b004ec97fb41c418","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e453c52f01d60073258ff78bc1710216b78ab90708f203d5b004ec97fb41c418","first_computed_at":"2026-07-05T07:50:14.240216Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:50:14.240216Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qLOdbHaO92jCbt0OeOOMbkGKw91mgO4Q3jxASoVea8FTkJa+pKR27Um8xGV/Y4GOOabf2Bp+jGGDvwwRclvpAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T07:50:14.240634Z","signed_message":"canonical_sha256_bytes"},"source_id":"2402.18248","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e453c4af36bbb7200490003d87e02644c27227631a53a01b1680515ace3ea6a9","sha256:ef992c75b1bb04fd31ec3e2a5c4b75f538db954fea66a118851cee22251991aa"],"state_sha256":"8b333e54c34d8274ff91421536242e30dd35df3de99ad3d49563654d5a16c638"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"btg3OT9BjlgNaeZRFgvYrnZPDSu8d6kZpxZDmHidM271j4XBCroBGjt0lQ8jl+ElWK4QYK/ggFMP6aSdHACPDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T03:02:41.129225Z","bundle_sha256":"d65d3061f3edc8c4a8f34a5aeab9c66221daea8f68a8d53c99f9da376da4dae4"}}