{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:G4L7LOEXSMX65DHBXRUKO6ELI3","short_pith_number":"pith:G4L7LOEX","canonical_record":{"source":{"id":"2503.14743","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-03-18T21:14:17Z","cross_cats_sorted":[],"title_canon_sha256":"d2355b8234820fdaee3b6d5a9491c47ad1645d9c326be9c526f4f89a15786911","abstract_canon_sha256":"ad0c5f5c0c9928f972f96e130ea93bd7e6fcfa38772777366755e8c51f3a6c58"},"schema_version":"1.0"},"canonical_sha256":"3717f5b897932fee8ce1bc68a7788b46f9fbca27312d762fade40d210c5306e2","source":{"kind":"arxiv","id":"2503.14743","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.14743","created_at":"2026-05-17T23:39:21Z"},{"alias_kind":"arxiv_version","alias_value":"2503.14743v2","created_at":"2026-05-17T23:39:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.14743","created_at":"2026-05-17T23:39:21Z"},{"alias_kind":"pith_short_12","alias_value":"G4L7LOEXSMX6","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_16","alias_value":"G4L7LOEXSMX65DHB","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_8","alias_value":"G4L7LOEX","created_at":"2026-05-18T12:33:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:G4L7LOEXSMX65DHBXRUKO6ELI3","target":"record","payload":{"canonical_record":{"source":{"id":"2503.14743","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-03-18T21:14:17Z","cross_cats_sorted":[],"title_canon_sha256":"d2355b8234820fdaee3b6d5a9491c47ad1645d9c326be9c526f4f89a15786911","abstract_canon_sha256":"ad0c5f5c0c9928f972f96e130ea93bd7e6fcfa38772777366755e8c51f3a6c58"},"schema_version":"1.0"},"canonical_sha256":"3717f5b897932fee8ce1bc68a7788b46f9fbca27312d762fade40d210c5306e2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:39:21.750736Z","signature_b64":"qQ1XNWGn0ct6h4H9NleFxFOofbPOVPoKBfRoxYsOh5Ji7JBNrPMbbMN4Y5VIzAPLQlP4Jh2l1nvK6RdP9WijAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3717f5b897932fee8ce1bc68a7788b46f9fbca27312d762fade40d210c5306e2","last_reissued_at":"2026-05-17T23:39:21.750011Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:39:21.750011Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2503.14743","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":"2026-05-17T23:39:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5zL9V9HaZ/w0PD+xvXhZl5mCoT6PkNUzKrnY2HU4CAL3XH+lRDN1SopwVZQwh2GYenjd6IMIWREiQj1Y7dfRBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T15:37:10.510484Z"},"content_sha256":"e5c78c8935bc835871f48dcfe1869d322d77e866b380af99a49413f754604ba3","schema_version":"1.0","event_id":"sha256:e5c78c8935bc835871f48dcfe1869d322d77e866b380af99a49413f754604ba3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:G4L7LOEXSMX65DHBXRUKO6ELI3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extended Dark Energy analysis using DESI DR2 BAO measurements","license":"http://creativecommons.org/licenses/by/4.0/","headline":"DESI DR2 BAO data with Planck and supernovae show robust evidence for dynamical dark energy evolving at low redshifts.","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Aviles, A. Brodzeller, A. Carnero Rosell, A. Cuceu, A. de la Macorra, A. de Mattia, A. D. Myers, A. Font-Ribera, A. G. Kim, A. J. Ross, A. Kremin, A. Leauthaud, A. Meisner, A. Mu\\~noz-Guti\\'errez, A. P\\'erez-Fern\\'andez, Arjun Dey, A. Shafieloo, A. X. Gonzalez-Morales, B. A. Weaver, Biprateep Dey, C. Garcia-Quintero, C. Hahn, C. Howlett, C. Lamman, C. Magneville, C. Poppett, C. Ram\\'irez-P\\'erez, C. Ravoux, C. Y\\`eche, D. Bianchi, D. Brooks, D. Chebat, D. Huterer, D. J. Eisenstein, D. Kirkby, D. Mu\\~noz Santos, D. Parkinson, D. Schlegel, D. Sprayberry, E. Armengaud, E. Burtin, E. Chaussidon, E. Gazta\\~naga, E. Paillas, E. Sanchez, F. J. Castander, F. Lozano-Rodr\\'iguez, F. Prada, F. Sinigaglia, G. B. Zhao, G. Gutierrez, G. Niz, G. Rossi, G. Tarl\\'e, G. Valogiannis, H. E. Noriega, H. Gil-Mar\\'in, H. K. Herrera-Alcantar, H. Seo, H. Zou (for the DESI Collaboration), I. P\\'erez-R\\`afols, J. Aguilar, J. Chaves-Montero, J. E. Forero-Romero, J. Guy, J. L. Cervantes-Cota, J. Mena-Fern\\'andez, J. Moustakas, J. O. Rom\\'an-Herrera, J. Pan, J. Rohlf, K. Honscheid, K. Lodha, K. S. Dawson, L. A. Ure\\~na-L\\'opez, L. Casas, Lehman H. Garrison, L. Le Guillou, L. Samushia, M. Abdul-Karim, Matthew M. Pieri, M. Charles, M. E. Levi, M. Herbold, M. Ishak, M. Landriau, M. Manera, M. Rashkovetskyi, M. Schubnell, M. Vargas-Maga\\~na, M. Walther, M. Wolfson, N. Deiosso, N. Palanque-Delabrouille, N. V. Kamble, O. Alves, O. Lahav, P. Doel, P. Martini, P. Taylor, P. Zarrouk, Q. Li, R. Calderon, R. Canning, R. Demina, R. Kehoe, R. Miquel, R. Zhou, S. Ahlen, S. BenZvi, S. Cole, S. Ferraro, S. Gontcho A Gontcho, S. Juneau, S. Nadathur, T. Claybaugh, T. Kisner, T. Tan, U. Andrade, V. Ruhlmann-Kleider, W. Elbers, W. J. Percival, W. L. Matthewson, W. Turner, Z. Ding","submitted_at":"2025-03-18T21:14:17Z","abstract_excerpt":"We conduct an extended analysis of dark energy constraints, in support of the findings of the DESI DR2 cosmology key paper, including DESI data, Planck CMB observations, and three different supernova compilations. Using a broad range of parametric and non-parametric methods, we explore the dark energy phenomenology and find consistent trends across all approaches, in good agreement with the $w_0w_a$CDM key paper results. Even with the additional flexibility introduced by non-parametric approaches, such as binning and Gaussian Processes, we find that extending $\\Lambda$CDM to include a two-para"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"Our analysis confirms that the evidence for dynamical dark energy, particularly at low redshift (z ≲ 0.3), is robust and stable under different modeling choices.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The assumption that systematic uncertainties in DESI BAO measurements, Planck data, and supernova compilations do not introduce spurious signals mimicking dynamical dark energy evolution.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Extended analysis of DESI DR2 data confirms robust evidence for dynamical dark energy with phantom crossing preference, stable under parametric and non-parametric modeling.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"DESI DR2 BAO data with Planck and supernovae show robust evidence for dynamical dark energy evolving at low redshifts.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"4c270937f9e5b28c703be3c8a56733ef16706a0bca52bc1619d143372d8689d3"},"source":{"id":"2503.14743","kind":"arxiv","version":2},"verdict":{"id":"6ffca845-9e6f-4985-baec-91eafc860a65","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-14T20:58:25.205800Z","strongest_claim":"Our analysis confirms that the evidence for dynamical dark energy, particularly at low redshift (z ≲ 0.3), is robust and stable under different modeling choices.","one_line_summary":"Extended analysis of DESI DR2 data confirms robust evidence for dynamical dark energy with phantom crossing preference, stable under parametric and non-parametric modeling.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The assumption that systematic uncertainties in DESI BAO measurements, Planck data, and supernova compilations do not introduce spurious signals mimicking dynamical dark energy evolution.","pith_extraction_headline":"DESI DR2 BAO data with Planck and supernovae show robust evidence for dynamical dark energy evolving at low redshifts."},"references":{"count":229,"sample":[{"doi":"","year":null,"title":"in DR2 and Table III in [40] for DR1 comparison. The mirage direction fully captures the DE phenomenol- ogy suggested by the data, with merely one degree of freedom w0 that quantifies the strength of ","work_id":"e615cf18-9352-4de3-9ab0-a167de1e4979","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1917,"title":"A. Einstein, Sitzungsber. Preuss. Akad. Wiss. Berlin (Math. Phys. ) 1917, 142 (1917)","work_id":"9f703bc1-b9a9-491c-9ec6-7e55367ae4b5","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1998,"title":"Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant","work_id":"f4711f38-d7d5-454b-a88b-02642c09bbd4","ref_index":3,"cited_arxiv_id":"astro-ph/9805201","is_internal_anchor":true},{"doi":"","year":1999,"title":"Perlmutteret al.(Supernova Cosmology Project), Measurements of Ω and Λ from 42 high redshift su- pernovae, Astrophys","work_id":"4145e765-f290-4eba-b020-7fea747ed846","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2002,"title":"Parameter con- straints for flat cosmologies from CMB and 2dFGRS power spectra","work_id":"28644023-1468-49f8-90e9-933874f29068","ref_index":5,"cited_arxiv_id":"astro-ph/0206256","is_internal_anchor":true}],"resolved_work":229,"snapshot_sha256":"e1c5e9bad74d04394195d9cf906e1a1ce8c916c01549de6491c77a389f9f8ffc","internal_anchors":118},"formal_canon":{"evidence_count":1,"snapshot_sha256":"3ad1c1ed7fb435415a42e77e41d30f460e2288180fa0a95c440e5d5db3e25200"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":"6ffca845-9e6f-4985-baec-91eafc860a65"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:39:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PAJPbKmwC788prxa1KGvKxo0k0yWsW26891APnIAHVxXXYyLIIeYRGisZzw2ft1iRR+LbPLxa6Y33O0bIh8iAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T15:37:10.511314Z"},"content_sha256":"2350412d0e450eed8ca8a9d0f560f4b89aa6312324fce6ff7fff2f21680c03a7","schema_version":"1.0","event_id":"sha256:2350412d0e450eed8ca8a9d0f560f4b89aa6312324fce6ff7fff2f21680c03a7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G4L7LOEXSMX65DHBXRUKO6ELI3/bundle.json","state_url":"https://pith.science/pith/G4L7LOEXSMX65DHBXRUKO6ELI3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G4L7LOEXSMX65DHBXRUKO6ELI3/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":"2026-08-03T15:37:10Z","links":{"resolver":"https://pith.science/pith/G4L7LOEXSMX65DHBXRUKO6ELI3","bundle":"https://pith.science/pith/G4L7LOEXSMX65DHBXRUKO6ELI3/bundle.json","state":"https://pith.science/pith/G4L7LOEXSMX65DHBXRUKO6ELI3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G4L7LOEXSMX65DHBXRUKO6ELI3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:G4L7LOEXSMX65DHBXRUKO6ELI3","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":"ad0c5f5c0c9928f972f96e130ea93bd7e6fcfa38772777366755e8c51f3a6c58","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-03-18T21:14:17Z","title_canon_sha256":"d2355b8234820fdaee3b6d5a9491c47ad1645d9c326be9c526f4f89a15786911"},"schema_version":"1.0","source":{"id":"2503.14743","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.14743","created_at":"2026-05-17T23:39:21Z"},{"alias_kind":"arxiv_version","alias_value":"2503.14743v2","created_at":"2026-05-17T23:39:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.14743","created_at":"2026-05-17T23:39:21Z"},{"alias_kind":"pith_short_12","alias_value":"G4L7LOEXSMX6","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_16","alias_value":"G4L7LOEXSMX65DHB","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_8","alias_value":"G4L7LOEX","created_at":"2026-05-18T12:33:37Z"}],"graph_snapshots":[{"event_id":"sha256:2350412d0e450eed8ca8a9d0f560f4b89aa6312324fce6ff7fff2f21680c03a7","target":"graph","created_at":"2026-05-17T23:39:21Z","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":4,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"Our analysis confirms that the evidence for dynamical dark energy, particularly at low redshift (z ≲ 0.3), is robust and stable under different modeling choices."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"The assumption that systematic uncertainties in DESI BAO measurements, Planck data, and supernova compilations do not introduce spurious signals mimicking dynamical dark energy evolution."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"Extended analysis of DESI DR2 data confirms robust evidence for dynamical dark energy with phantom crossing preference, stable under parametric and non-parametric modeling."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"DESI DR2 BAO data with Planck and supernovae show robust evidence for dynamical dark energy evolving at low redshifts."}],"snapshot_sha256":"4c270937f9e5b28c703be3c8a56733ef16706a0bca52bc1619d143372d8689d3"},"formal_canon":{"evidence_count":1,"snapshot_sha256":"3ad1c1ed7fb435415a42e77e41d30f460e2288180fa0a95c440e5d5db3e25200"},"paper":{"abstract_excerpt":"We conduct an extended analysis of dark energy constraints, in support of the findings of the DESI DR2 cosmology key paper, including DESI data, Planck CMB observations, and three different supernova compilations. Using a broad range of parametric and non-parametric methods, we explore the dark energy phenomenology and find consistent trends across all approaches, in good agreement with the $w_0w_a$CDM key paper results. Even with the additional flexibility introduced by non-parametric approaches, such as binning and Gaussian Processes, we find that extending $\\Lambda$CDM to include a two-para","authors_text":"A. Aviles, A. Brodzeller, A. Carnero Rosell, A. Cuceu, A. de la Macorra, A. de Mattia, A. D. Myers, A. Font-Ribera, A. G. Kim, A. J. Ross, A. Kremin, A. Leauthaud, A. Meisner, A. Mu\\~noz-Guti\\'errez, A. P\\'erez-Fern\\'andez, Arjun Dey, A. Shafieloo, A. X. Gonzalez-Morales, B. A. Weaver, Biprateep Dey, C. Garcia-Quintero, C. Hahn, C. Howlett, C. Lamman, C. Magneville, C. Poppett, C. Ram\\'irez-P\\'erez, C. Ravoux, C. Y\\`eche, D. Bianchi, D. Brooks, D. Chebat, D. Huterer, D. J. Eisenstein, D. Kirkby, D. Mu\\~noz Santos, D. Parkinson, D. Schlegel, D. Sprayberry, E. Armengaud, E. Burtin, E. Chaussidon, E. Gazta\\~naga, E. Paillas, E. Sanchez, F. J. Castander, F. Lozano-Rodr\\'iguez, F. Prada, F. Sinigaglia, G. B. Zhao, G. Gutierrez, G. Niz, G. Rossi, G. Tarl\\'e, G. Valogiannis, H. E. Noriega, H. Gil-Mar\\'in, H. K. Herrera-Alcantar, H. Seo, H. Zou (for the DESI Collaboration), I. P\\'erez-R\\`afols, J. Aguilar, J. Chaves-Montero, J. E. Forero-Romero, J. Guy, J. L. Cervantes-Cota, J. Mena-Fern\\'andez, J. Moustakas, J. O. Rom\\'an-Herrera, J. Pan, J. Rohlf, K. Honscheid, K. Lodha, K. S. Dawson, L. A. Ure\\~na-L\\'opez, L. Casas, Lehman H. Garrison, L. Le Guillou, L. Samushia, M. Abdul-Karim, Matthew M. Pieri, M. Charles, M. E. Levi, M. Herbold, M. Ishak, M. Landriau, M. Manera, M. Rashkovetskyi, M. Schubnell, M. Vargas-Maga\\~na, M. Walther, M. Wolfson, N. Deiosso, N. Palanque-Delabrouille, N. V. Kamble, O. Alves, O. Lahav, P. Doel, P. Martini, P. Taylor, P. Zarrouk, Q. Li, R. Calderon, R. Canning, R. Demina, R. Kehoe, R. Miquel, R. Zhou, S. Ahlen, S. BenZvi, S. Cole, S. Ferraro, S. Gontcho A Gontcho, S. Juneau, S. Nadathur, T. Claybaugh, T. Kisner, T. Tan, U. Andrade, V. Ruhlmann-Kleider, W. Elbers, W. J. Percival, W. L. Matthewson, W. Turner, Z. Ding","cross_cats":[],"headline":"DESI DR2 BAO data with Planck and supernovae show robust evidence for dynamical dark energy evolving at low redshifts.","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-03-18T21:14:17Z","title":"Extended Dark Energy analysis using DESI DR2 BAO measurements"},"references":{"count":229,"internal_anchors":118,"resolved_work":229,"sample":[{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":1,"title":"in DR2 and Table III in [40] for DR1 comparison. The mirage direction fully captures the DE phenomenol- ogy suggested by the data, with merely one degree of freedom w0 that quantifies the strength of ","work_id":"e615cf18-9352-4de3-9ab0-a167de1e4979","year":null},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":2,"title":"A. Einstein, Sitzungsber. Preuss. Akad. Wiss. Berlin (Math. Phys. ) 1917, 142 (1917)","work_id":"9f703bc1-b9a9-491c-9ec6-7e55367ae4b5","year":1917},{"cited_arxiv_id":"astro-ph/9805201","doi":"","is_internal_anchor":true,"ref_index":3,"title":"Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant","work_id":"f4711f38-d7d5-454b-a88b-02642c09bbd4","year":1998},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":4,"title":"Perlmutteret al.(Supernova Cosmology Project), Measurements of Ω and Λ from 42 high redshift su- pernovae, Astrophys","work_id":"4145e765-f290-4eba-b020-7fea747ed846","year":1999},{"cited_arxiv_id":"astro-ph/0206256","doi":"","is_internal_anchor":true,"ref_index":5,"title":"Parameter con- straints for flat cosmologies from CMB and 2dFGRS power spectra","work_id":"28644023-1468-49f8-90e9-933874f29068","year":2002}],"snapshot_sha256":"e1c5e9bad74d04394195d9cf906e1a1ce8c916c01549de6491c77a389f9f8ffc"},"source":{"id":"2503.14743","kind":"arxiv","version":2},"verdict":{"created_at":"2026-05-14T20:58:25.205800Z","id":"6ffca845-9e6f-4985-baec-91eafc860a65","model_set":{"reader":"grok-4.3"},"one_line_summary":"Extended analysis of DESI DR2 data confirms robust evidence for dynamical dark energy with phantom crossing preference, stable under parametric and non-parametric modeling.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"DESI DR2 BAO data with Planck and supernovae show robust evidence for dynamical dark energy evolving at low redshifts.","strongest_claim":"Our analysis confirms that the evidence for dynamical dark energy, particularly at low redshift (z ≲ 0.3), is robust and stable under different modeling choices.","weakest_assumption":"The assumption that systematic uncertainties in DESI BAO measurements, Planck data, and supernova compilations do not introduce spurious signals mimicking dynamical dark energy evolution."}},"verdict_id":"6ffca845-9e6f-4985-baec-91eafc860a65"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:e5c78c8935bc835871f48dcfe1869d322d77e866b380af99a49413f754604ba3","target":"record","created_at":"2026-05-17T23:39:21Z","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":"ad0c5f5c0c9928f972f96e130ea93bd7e6fcfa38772777366755e8c51f3a6c58","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-03-18T21:14:17Z","title_canon_sha256":"d2355b8234820fdaee3b6d5a9491c47ad1645d9c326be9c526f4f89a15786911"},"schema_version":"1.0","source":{"id":"2503.14743","kind":"arxiv","version":2}},"canonical_sha256":"3717f5b897932fee8ce1bc68a7788b46f9fbca27312d762fade40d210c5306e2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3717f5b897932fee8ce1bc68a7788b46f9fbca27312d762fade40d210c5306e2","first_computed_at":"2026-05-17T23:39:21.750011Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:21.750011Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qQ1XNWGn0ct6h4H9NleFxFOofbPOVPoKBfRoxYsOh5Ji7JBNrPMbbMN4Y5VIzAPLQlP4Jh2l1nvK6RdP9WijAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:21.750736Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.14743","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e5c78c8935bc835871f48dcfe1869d322d77e866b380af99a49413f754604ba3","sha256:2350412d0e450eed8ca8a9d0f560f4b89aa6312324fce6ff7fff2f21680c03a7"],"state_sha256":"a57af09d86c8266d8c77c7525352768e09e3733ce8b893d716c27a19bc15b8dc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tf37zVHe0QvZBPogz25rBTgin8ZTeD9lcMIQpqQtU1yZuiFKleTLcym94hMlcZ73Lz+oDGebE13JjHN/EAoZAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T15:37:10.516307Z","bundle_sha256":"7811408ebcf52ba0b8ea306a2341d2808918443edc36788a6a8bf8597f0fc733"}}