{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:NNMYMTM6PC37XFF5LCKS3IZ3XR","short_pith_number":"pith:NNMYMTM6","canonical_record":{"source":{"id":"2412.12210","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-12-15T19:29:16Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"451472fc6ff0b3bcde5f8db6a5e3e7f5e0cd4d138541dded83d9505617c291a3","abstract_canon_sha256":"33e9a9ecf535895b0357b09e75064aa777658d4ab032f8ee14723624c1fb24b5"},"schema_version":"1.0"},"canonical_sha256":"6b59864d9e78b7fb94bd58952da33bbc7b049b4b62daf95cedf1f08e829efdbd","source":{"kind":"arxiv","id":"2412.12210","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.12210","created_at":"2026-07-05T10:52:38Z"},{"alias_kind":"arxiv_version","alias_value":"2412.12210v2","created_at":"2026-07-05T10:52:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.12210","created_at":"2026-07-05T10:52:38Z"},{"alias_kind":"pith_short_12","alias_value":"NNMYMTM6PC37","created_at":"2026-07-05T10:52:38Z"},{"alias_kind":"pith_short_16","alias_value":"NNMYMTM6PC37XFF5","created_at":"2026-07-05T10:52:38Z"},{"alias_kind":"pith_short_8","alias_value":"NNMYMTM6","created_at":"2026-07-05T10:52:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:NNMYMTM6PC37XFF5LCKS3IZ3XR","target":"record","payload":{"canonical_record":{"source":{"id":"2412.12210","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-12-15T19:29:16Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"451472fc6ff0b3bcde5f8db6a5e3e7f5e0cd4d138541dded83d9505617c291a3","abstract_canon_sha256":"33e9a9ecf535895b0357b09e75064aa777658d4ab032f8ee14723624c1fb24b5"},"schema_version":"1.0"},"canonical_sha256":"6b59864d9e78b7fb94bd58952da33bbc7b049b4b62daf95cedf1f08e829efdbd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:52:38.831296Z","signature_b64":"YWkkNyKzLKS7bVKliecP4iDOIDj/Jj9jKOX9gMIcOnxKNZ66wKvfjzlZQ5hhtLstsmnix3UT6ozPmHwrl+lVAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6b59864d9e78b7fb94bd58952da33bbc7b049b4b62daf95cedf1f08e829efdbd","last_reissued_at":"2026-07-05T10:52:38.830831Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:52:38.830831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.12210","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":"2026-07-05T10:52:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JIaSBc6CVYS7Y0aQeXwagMIcBFCMq3S8SIxjYNuEIpjxRKc2YfOKZjuGvBqEUOghiNjD+7wT1B2bZ3QzZVsQBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T08:48:14.978604Z"},"content_sha256":"d794151efc4db6f1e9c8cb76dc52faa0bd4cf5bb6ed967542b639ae425031e73","schema_version":"1.0","event_id":"sha256:d794151efc4db6f1e9c8cb76dc52faa0bd4cf5bb6ed967542b639ae425031e73"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:NNMYMTM6PC37XFF5LCKS3IZ3XR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cosmic reverberations on a constrained $ f(Q,T) $-model of the Universe","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"gr-qc","authors_text":"Akanksha Singh, Ertan G\\\"udekli, J. K. Singh, Shaily","submitted_at":"2024-12-15T19:29:16Z","abstract_excerpt":"In this paper, we construct an isotropic cosmological model in the $ f(Q, T) $ theory of gravity in the frame of a flat FLRW spacetime being $ Q $ the non-metricity tensor and $ T $ the trace of the energy-momentum tensor. The gravity function is taken to be a quadratic equation, $ f(Q, T)=\\zeta Q^2 + \\gamma T $, where $ \\zeta<0 $ and $ \\gamma $ are the arbitrary constants. We constrain the model parameters $ \\alpha $ and $ H_0 $ using the recent observational datasets: the Hubble dataset (OHD), the $ Pantheon $ dataset of $ 1048 $ points, and the joint dataset (OHD + $ Pantheon $). The univer"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.12210","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2412.12210/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":"2026-07-05T10:52:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ikp15zZ446fKUhE5a3jG0+sRR9qevcAd9uf/xPzo1F/hFNFjxvDvSI37ElVR9h+i7C7Za9m+hy7A54vUOKHIAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T08:48:14.979213Z"},"content_sha256":"e32d0761f9179894da6df8ddcf1489fd0d3629c7faef5b7c2bf2a068d7d9309b","schema_version":"1.0","event_id":"sha256:e32d0761f9179894da6df8ddcf1489fd0d3629c7faef5b7c2bf2a068d7d9309b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NNMYMTM6PC37XFF5LCKS3IZ3XR/bundle.json","state_url":"https://pith.science/pith/NNMYMTM6PC37XFF5LCKS3IZ3XR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NNMYMTM6PC37XFF5LCKS3IZ3XR/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":"2026-08-12T08:48:14Z","links":{"resolver":"https://pith.science/pith/NNMYMTM6PC37XFF5LCKS3IZ3XR","bundle":"https://pith.science/pith/NNMYMTM6PC37XFF5LCKS3IZ3XR/bundle.json","state":"https://pith.science/pith/NNMYMTM6PC37XFF5LCKS3IZ3XR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NNMYMTM6PC37XFF5LCKS3IZ3XR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:NNMYMTM6PC37XFF5LCKS3IZ3XR","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":"33e9a9ecf535895b0357b09e75064aa777658d4ab032f8ee14723624c1fb24b5","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-12-15T19:29:16Z","title_canon_sha256":"451472fc6ff0b3bcde5f8db6a5e3e7f5e0cd4d138541dded83d9505617c291a3"},"schema_version":"1.0","source":{"id":"2412.12210","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.12210","created_at":"2026-07-05T10:52:38Z"},{"alias_kind":"arxiv_version","alias_value":"2412.12210v2","created_at":"2026-07-05T10:52:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.12210","created_at":"2026-07-05T10:52:38Z"},{"alias_kind":"pith_short_12","alias_value":"NNMYMTM6PC37","created_at":"2026-07-05T10:52:38Z"},{"alias_kind":"pith_short_16","alias_value":"NNMYMTM6PC37XFF5","created_at":"2026-07-05T10:52:38Z"},{"alias_kind":"pith_short_8","alias_value":"NNMYMTM6","created_at":"2026-07-05T10:52:38Z"}],"graph_snapshots":[{"event_id":"sha256:e32d0761f9179894da6df8ddcf1489fd0d3629c7faef5b7c2bf2a068d7d9309b","target":"graph","created_at":"2026-07-05T10:52:38Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2412.12210/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper, we construct an isotropic cosmological model in the $ f(Q, T) $ theory of gravity in the frame of a flat FLRW spacetime being $ Q $ the non-metricity tensor and $ T $ the trace of the energy-momentum tensor. The gravity function is taken to be a quadratic equation, $ f(Q, T)=\\zeta Q^2 + \\gamma T $, where $ \\zeta<0 $ and $ \\gamma $ are the arbitrary constants. We constrain the model parameters $ \\alpha $ and $ H_0 $ using the recent observational datasets: the Hubble dataset (OHD), the $ Pantheon $ dataset of $ 1048 $ points, and the joint dataset (OHD + $ Pantheon $). The univer","authors_text":"Akanksha Singh, Ertan G\\\"udekli, J. K. Singh, Shaily","cross_cats":["astro-ph.CO"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-12-15T19:29:16Z","title":"Cosmic reverberations on a constrained $ f(Q,T) $-model of the Universe"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.12210","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:d794151efc4db6f1e9c8cb76dc52faa0bd4cf5bb6ed967542b639ae425031e73","target":"record","created_at":"2026-07-05T10:52:38Z","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":"33e9a9ecf535895b0357b09e75064aa777658d4ab032f8ee14723624c1fb24b5","cross_cats_sorted":["astro-ph.CO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-12-15T19:29:16Z","title_canon_sha256":"451472fc6ff0b3bcde5f8db6a5e3e7f5e0cd4d138541dded83d9505617c291a3"},"schema_version":"1.0","source":{"id":"2412.12210","kind":"arxiv","version":2}},"canonical_sha256":"6b59864d9e78b7fb94bd58952da33bbc7b049b4b62daf95cedf1f08e829efdbd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6b59864d9e78b7fb94bd58952da33bbc7b049b4b62daf95cedf1f08e829efdbd","first_computed_at":"2026-07-05T10:52:38.830831Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:52:38.830831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YWkkNyKzLKS7bVKliecP4iDOIDj/Jj9jKOX9gMIcOnxKNZ66wKvfjzlZQ5hhtLstsmnix3UT6ozPmHwrl+lVAA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:52:38.831296Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.12210","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d794151efc4db6f1e9c8cb76dc52faa0bd4cf5bb6ed967542b639ae425031e73","sha256:e32d0761f9179894da6df8ddcf1489fd0d3629c7faef5b7c2bf2a068d7d9309b"],"state_sha256":"e9d20fe104a30ea356cc9b4950e0eaf21bb251337e8c18750309184e73490832"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7LsoIHAE8hL4InGK7rM28rwG+CCHgeInUCe4uo6ZZzjuGyUkGLWbafgtPpEnuEVc3foZV3lPkGq5g7b5W+lzAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T08:48:14.984676Z","bundle_sha256":"c93c06617571b84e8194890a9fbe733c44ff8ee25a03e5ac166d0a36f461ba71"}}