{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:N4TRJV3CN2WB7GFOS4M22RI3BE","short_pith_number":"pith:N4TRJV3C","canonical_record":{"source":{"id":"1903.04865","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-03-12T12:21:21Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"1e7c9cefd03677bcf328777845d40869308b7fc4f3c512316703bcfefc0a5c16","abstract_canon_sha256":"0a1ac6a60454567cce476159c24d70363a97a255c6c6a976299789c101fc98dc"},"schema_version":"1.0"},"canonical_sha256":"6f2714d7626eac1f98ae9719ad451b090542656e04a98f15d30c38fc8b88f046","source":{"kind":"arxiv","id":"1903.04865","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.04865","created_at":"2026-05-17T23:40:38Z"},{"alias_kind":"arxiv_version","alias_value":"1903.04865v2","created_at":"2026-05-17T23:40:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.04865","created_at":"2026-05-17T23:40:38Z"},{"alias_kind":"pith_short_12","alias_value":"N4TRJV3CN2WB","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"N4TRJV3CN2WB7GFO","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"N4TRJV3C","created_at":"2026-05-18T12:33:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:N4TRJV3CN2WB7GFOS4M22RI3BE","target":"record","payload":{"canonical_record":{"source":{"id":"1903.04865","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-03-12T12:21:21Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"1e7c9cefd03677bcf328777845d40869308b7fc4f3c512316703bcfefc0a5c16","abstract_canon_sha256":"0a1ac6a60454567cce476159c24d70363a97a255c6c6a976299789c101fc98dc"},"schema_version":"1.0"},"canonical_sha256":"6f2714d7626eac1f98ae9719ad451b090542656e04a98f15d30c38fc8b88f046","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:38.942833Z","signature_b64":"XWC2HGknWsFmTkw3E52+Q4IkC23X+okzYjyGJ8gA4AJ+juQlO7h3E2QvsM5s2u/DCg/FRS4n+FdaznXKWyUlAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6f2714d7626eac1f98ae9719ad451b090542656e04a98f15d30c38fc8b88f046","last_reissued_at":"2026-05-17T23:40:38.942425Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:38.942425Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.04865","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":"2026-05-17T23:40:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oee2fJBBQjBdK1RTdaLRrff1qTVGUmoJk8IQD7zQm0/AheUW+LTp/OK/rQLDDPbTq8hEDOHnolsmIsrVPEzVDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T00:03:56.785448Z"},"content_sha256":"d704a89ebdd5adb363b34bf25ea346b6a352ba957104b50d7ecb79c2a4242c43","schema_version":"1.0","event_id":"sha256:d704a89ebdd5adb363b34bf25ea346b6a352ba957104b50d7ecb79c2a4242c43"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:N4TRJV3CN2WB7GFOS4M22RI3BE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dark sector interaction: a remedy of the tensions between CMB and LSS data","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Rafael C. Nunes, Santosh Kumar Yadav, Suresh Kumar","submitted_at":"2019-03-12T12:21:21Z","abstract_excerpt":"The well-known tensions on the cosmological parameters $H_0$ and $\\sigma_8$ within the $\\Lambda$CDM cosmology shown by the Planck-CMB and LSS data are possibly due to the systematics in the data or our ignorance of some new physics beyond the $\\Lambda$CDM model. In this letter, we focus on the second possibility, and investigate a minimal extension of the $\\Lambda$CDM model by allowing a coupling between its dark sector components (dark energy and dark matter). We analyze this scenario with Planck-CMB, KiDS and HST data, and find that the $H_0$ and $\\sigma_8$ tensions disappear at 68\\% CL. In "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.04865","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":"2026-05-17T23:40:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eskP0y6HqkZBMsEt2XkXTe25wlYRUhL8WlcOa7sT8ywf6UTb4pVrzvVJLdqoTB4VhbyI21T56hHNjG3+lenXBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T00:03:56.785836Z"},"content_sha256":"f0063b2eb358234fa7283d1ae60da1dcad4104932098c40033b1fb3809abc3c6","schema_version":"1.0","event_id":"sha256:f0063b2eb358234fa7283d1ae60da1dcad4104932098c40033b1fb3809abc3c6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N4TRJV3CN2WB7GFOS4M22RI3BE/bundle.json","state_url":"https://pith.science/pith/N4TRJV3CN2WB7GFOS4M22RI3BE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N4TRJV3CN2WB7GFOS4M22RI3BE/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":"2026-05-20T00:03:56Z","links":{"resolver":"https://pith.science/pith/N4TRJV3CN2WB7GFOS4M22RI3BE","bundle":"https://pith.science/pith/N4TRJV3CN2WB7GFOS4M22RI3BE/bundle.json","state":"https://pith.science/pith/N4TRJV3CN2WB7GFOS4M22RI3BE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N4TRJV3CN2WB7GFOS4M22RI3BE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:N4TRJV3CN2WB7GFOS4M22RI3BE","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":"0a1ac6a60454567cce476159c24d70363a97a255c6c6a976299789c101fc98dc","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-03-12T12:21:21Z","title_canon_sha256":"1e7c9cefd03677bcf328777845d40869308b7fc4f3c512316703bcfefc0a5c16"},"schema_version":"1.0","source":{"id":"1903.04865","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.04865","created_at":"2026-05-17T23:40:38Z"},{"alias_kind":"arxiv_version","alias_value":"1903.04865v2","created_at":"2026-05-17T23:40:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.04865","created_at":"2026-05-17T23:40:38Z"},{"alias_kind":"pith_short_12","alias_value":"N4TRJV3CN2WB","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"N4TRJV3CN2WB7GFO","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"N4TRJV3C","created_at":"2026-05-18T12:33:24Z"}],"graph_snapshots":[{"event_id":"sha256:f0063b2eb358234fa7283d1ae60da1dcad4104932098c40033b1fb3809abc3c6","target":"graph","created_at":"2026-05-17T23:40:38Z","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":"The well-known tensions on the cosmological parameters $H_0$ and $\\sigma_8$ within the $\\Lambda$CDM cosmology shown by the Planck-CMB and LSS data are possibly due to the systematics in the data or our ignorance of some new physics beyond the $\\Lambda$CDM model. In this letter, we focus on the second possibility, and investigate a minimal extension of the $\\Lambda$CDM model by allowing a coupling between its dark sector components (dark energy and dark matter). We analyze this scenario with Planck-CMB, KiDS and HST data, and find that the $H_0$ and $\\sigma_8$ tensions disappear at 68\\% CL. In ","authors_text":"Rafael C. Nunes, Santosh Kumar Yadav, Suresh Kumar","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-03-12T12:21:21Z","title":"Dark sector interaction: a remedy of the tensions between CMB and LSS data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.04865","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:d704a89ebdd5adb363b34bf25ea346b6a352ba957104b50d7ecb79c2a4242c43","target":"record","created_at":"2026-05-17T23:40:38Z","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":"0a1ac6a60454567cce476159c24d70363a97a255c6c6a976299789c101fc98dc","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-03-12T12:21:21Z","title_canon_sha256":"1e7c9cefd03677bcf328777845d40869308b7fc4f3c512316703bcfefc0a5c16"},"schema_version":"1.0","source":{"id":"1903.04865","kind":"arxiv","version":2}},"canonical_sha256":"6f2714d7626eac1f98ae9719ad451b090542656e04a98f15d30c38fc8b88f046","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6f2714d7626eac1f98ae9719ad451b090542656e04a98f15d30c38fc8b88f046","first_computed_at":"2026-05-17T23:40:38.942425Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:38.942425Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XWC2HGknWsFmTkw3E52+Q4IkC23X+okzYjyGJ8gA4AJ+juQlO7h3E2QvsM5s2u/DCg/FRS4n+FdaznXKWyUlAg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:38.942833Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.04865","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d704a89ebdd5adb363b34bf25ea346b6a352ba957104b50d7ecb79c2a4242c43","sha256:f0063b2eb358234fa7283d1ae60da1dcad4104932098c40033b1fb3809abc3c6"],"state_sha256":"1874f69cf8b0fcc3e103ed6a765e5ae341b59bbf11bd528fca2a1ea772da981a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HF/OLJKaP7m13hlEwnZoIfCWKDe3ciOBJ03XQkQg813RdHdiM6aqCBJZd7Dm54oTdrsI1AF/+/+ECB54N2C+Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T00:03:56.789148Z","bundle_sha256":"f98080d8c52747e0e51b1ed84be6f42be9e4bec77b3a85e11012a6f09d608005"}}