{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:6QIE6TRNI7XBMYBT55F5SXLJIM","short_pith_number":"pith:6QIE6TRN","canonical_record":{"source":{"id":"2406.02072","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-06-04T07:54:08Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"82d8d284f6c57f177f8765cf024ed9a62915ee3ca2220a55024bdda7d9fdd791","abstract_canon_sha256":"73a40ac648151b0ebf14d93b2f3225567d679c9a1293500de0c57de25dad8cd3"},"schema_version":"1.0"},"canonical_sha256":"f4104f4e2d47ee166033ef4bd95d69431b6ea2d3ed32dd9deb375c2683cf660f","source":{"kind":"arxiv","id":"2406.02072","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.02072","created_at":"2026-07-05T10:16:10Z"},{"alias_kind":"arxiv_version","alias_value":"2406.02072v2","created_at":"2026-07-05T10:16:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.02072","created_at":"2026-07-05T10:16:10Z"},{"alias_kind":"pith_short_12","alias_value":"6QIE6TRNI7XB","created_at":"2026-07-05T10:16:10Z"},{"alias_kind":"pith_short_16","alias_value":"6QIE6TRNI7XBMYBT","created_at":"2026-07-05T10:16:10Z"},{"alias_kind":"pith_short_8","alias_value":"6QIE6TRN","created_at":"2026-07-05T10:16:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:6QIE6TRNI7XBMYBT55F5SXLJIM","target":"record","payload":{"canonical_record":{"source":{"id":"2406.02072","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-06-04T07:54:08Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"82d8d284f6c57f177f8765cf024ed9a62915ee3ca2220a55024bdda7d9fdd791","abstract_canon_sha256":"73a40ac648151b0ebf14d93b2f3225567d679c9a1293500de0c57de25dad8cd3"},"schema_version":"1.0"},"canonical_sha256":"f4104f4e2d47ee166033ef4bd95d69431b6ea2d3ed32dd9deb375c2683cf660f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:16:10.070610Z","signature_b64":"MdXOnvzebNHzAc6WwUqUuoaouAjeHggOEg4+iRxgPEhdub4XBtyjgec/7qg67z2BmDh4xATzP/6GWaiWLDV6Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f4104f4e2d47ee166033ef4bd95d69431b6ea2d3ed32dd9deb375c2683cf660f","last_reissued_at":"2026-07-05T10:16:10.070060Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:16:10.070060Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2406.02072","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":"2026-07-05T10:16:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rZLVLiMm5R8dIVcnl6uvMsJpbhK8HM5fSWQ6A7WjY3Jeu9TB1pY8r1uLqC9UBayluSZ+aDKCEj7iusH2AMGGDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T03:59:15.225406Z"},"content_sha256":"e2eced6b389fa8de5d2635aefde023105362b61b71b9dba160b4bf46c5839e7e","schema_version":"1.0","event_id":"sha256:e2eced6b389fa8de5d2635aefde023105362b61b71b9dba160b4bf46c5839e7e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:6QIE6TRNI7XBMYBT55F5SXLJIM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ZTF SN Ia DR2: Colour standardisation of Type Ia Supernovae and its dependence on environment","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"A. Goobar, A. Townsend, B. Carreres, B. Popovic, B. Racine, B. Rusholme, C. Barjou-Delayre, C. Ganot, D. Fouchez, D. Kuhn, D. Rosselli, F. Feinstein, F. Ruppin, G. Dimitriadis, J.H. Terwel, J. Johansson, J. Nordin, J. Purdum, J. Sollerman, K. Maguire, L. Galbany, L. Lacroix, M. Aubert, M. Deckers, M. Ginolin, M. Graham, M. Kasliwal, M. Rigault, M. Smith, P. Nugent, P. Rosnet, R. Dekany, S. Dhawan, S.L. Groom, S. van der Walt, T. de Jaeger, T.E. M\\\"uller-Bravo, U. Burgaz, Y. Copin, Y.-L. Kim","submitted_at":"2024-06-04T07:54:08Z","abstract_excerpt":"As type Ia supernova (SN Ia) cosmology transitions from a statistics-dominated to a systematics-dominated era, it is crucial to understand the remaining unexplained uncertainties that affect their luminosity, such as those stemming from astrophysical biases. SNe Ia are standardisable candles whose absolute magnitude reaches a scatter of 0.15 mag when empirical correlations with their light-curve stretch and colour and with their environment are accounted for. We investigate the dependence of the standardisation process of SNe Ia on the astrophysical environment, focusing on colour standardisat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.02072","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/2406.02072/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":"2026-07-05T10:16:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U60tObVkM2+YQ4ZEMaFrZKtTO0lbwJsEzk6x7G1SYbzseTsvuqclyXQ1RwF4zBMsBYLmZjVdrBjTHlEw31B2AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T03:59:15.226052Z"},"content_sha256":"e44ec62c72aee5879168f119be802dbf851038fb3b8f5636b65b61b7b4697b12","schema_version":"1.0","event_id":"sha256:e44ec62c72aee5879168f119be802dbf851038fb3b8f5636b65b61b7b4697b12"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6QIE6TRNI7XBMYBT55F5SXLJIM/bundle.json","state_url":"https://pith.science/pith/6QIE6TRNI7XBMYBT55F5SXLJIM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6QIE6TRNI7XBMYBT55F5SXLJIM/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":"2026-08-12T03:59:15Z","links":{"resolver":"https://pith.science/pith/6QIE6TRNI7XBMYBT55F5SXLJIM","bundle":"https://pith.science/pith/6QIE6TRNI7XBMYBT55F5SXLJIM/bundle.json","state":"https://pith.science/pith/6QIE6TRNI7XBMYBT55F5SXLJIM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6QIE6TRNI7XBMYBT55F5SXLJIM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:6QIE6TRNI7XBMYBT55F5SXLJIM","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":"73a40ac648151b0ebf14d93b2f3225567d679c9a1293500de0c57de25dad8cd3","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-06-04T07:54:08Z","title_canon_sha256":"82d8d284f6c57f177f8765cf024ed9a62915ee3ca2220a55024bdda7d9fdd791"},"schema_version":"1.0","source":{"id":"2406.02072","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.02072","created_at":"2026-07-05T10:16:10Z"},{"alias_kind":"arxiv_version","alias_value":"2406.02072v2","created_at":"2026-07-05T10:16:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.02072","created_at":"2026-07-05T10:16:10Z"},{"alias_kind":"pith_short_12","alias_value":"6QIE6TRNI7XB","created_at":"2026-07-05T10:16:10Z"},{"alias_kind":"pith_short_16","alias_value":"6QIE6TRNI7XBMYBT","created_at":"2026-07-05T10:16:10Z"},{"alias_kind":"pith_short_8","alias_value":"6QIE6TRN","created_at":"2026-07-05T10:16:10Z"}],"graph_snapshots":[{"event_id":"sha256:e44ec62c72aee5879168f119be802dbf851038fb3b8f5636b65b61b7b4697b12","target":"graph","created_at":"2026-07-05T10:16:10Z","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/2406.02072/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"As type Ia supernova (SN Ia) cosmology transitions from a statistics-dominated to a systematics-dominated era, it is crucial to understand the remaining unexplained uncertainties that affect their luminosity, such as those stemming from astrophysical biases. SNe Ia are standardisable candles whose absolute magnitude reaches a scatter of 0.15 mag when empirical correlations with their light-curve stretch and colour and with their environment are accounted for. We investigate the dependence of the standardisation process of SNe Ia on the astrophysical environment, focusing on colour standardisat","authors_text":"A. Goobar, A. Townsend, B. Carreres, B. Popovic, B. Racine, B. Rusholme, C. Barjou-Delayre, C. Ganot, D. Fouchez, D. Kuhn, D. Rosselli, F. Feinstein, F. Ruppin, G. Dimitriadis, J.H. Terwel, J. Johansson, J. Nordin, J. Purdum, J. Sollerman, K. Maguire, L. Galbany, L. Lacroix, M. Aubert, M. Deckers, M. Ginolin, M. Graham, M. Kasliwal, M. Rigault, M. Smith, P. Nugent, P. Rosnet, R. Dekany, S. Dhawan, S.L. Groom, S. van der Walt, T. de Jaeger, T.E. M\\\"uller-Bravo, U. Burgaz, Y. Copin, Y.-L. Kim","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-06-04T07:54:08Z","title":"ZTF SN Ia DR2: Colour standardisation of Type Ia Supernovae and its dependence on environment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.02072","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:e2eced6b389fa8de5d2635aefde023105362b61b71b9dba160b4bf46c5839e7e","target":"record","created_at":"2026-07-05T10:16:10Z","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":"73a40ac648151b0ebf14d93b2f3225567d679c9a1293500de0c57de25dad8cd3","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-06-04T07:54:08Z","title_canon_sha256":"82d8d284f6c57f177f8765cf024ed9a62915ee3ca2220a55024bdda7d9fdd791"},"schema_version":"1.0","source":{"id":"2406.02072","kind":"arxiv","version":2}},"canonical_sha256":"f4104f4e2d47ee166033ef4bd95d69431b6ea2d3ed32dd9deb375c2683cf660f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f4104f4e2d47ee166033ef4bd95d69431b6ea2d3ed32dd9deb375c2683cf660f","first_computed_at":"2026-07-05T10:16:10.070060Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:16:10.070060Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MdXOnvzebNHzAc6WwUqUuoaouAjeHggOEg4+iRxgPEhdub4XBtyjgec/7qg67z2BmDh4xATzP/6GWaiWLDV6Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:16:10.070610Z","signed_message":"canonical_sha256_bytes"},"source_id":"2406.02072","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e2eced6b389fa8de5d2635aefde023105362b61b71b9dba160b4bf46c5839e7e","sha256:e44ec62c72aee5879168f119be802dbf851038fb3b8f5636b65b61b7b4697b12"],"state_sha256":"6de74c2eef350ef1e866af290004e579df641a9e4dbba0c59ecbf089a57cdbf8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GWP1ipf5a6gC48q840WAtVHkmvTV6cNBK60IRijagQWQBFZTJAP4rMkAMr1nWmiOThvGxlcPkEwuqsJ0hxKrAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T03:59:15.231828Z","bundle_sha256":"7c7716f75155e5bf7f59d5505acceeb39760eaeb868bd398bed1a0173c1dbab4"}}