{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:IJIWCGMZ47ONLCKWDLE63JSOQP","short_pith_number":"pith:IJIWCGMZ","canonical_record":{"source":{"id":"2112.15249","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-12-31T00:25:33Z","cross_cats_sorted":[],"title_canon_sha256":"46a47f5b66fd4fff9cca73aaa5617c0ab7eaf3b04e6df291e06a4bf1bcca4756","abstract_canon_sha256":"627a3860baf169e2febae6977115ed299efc7c8bbaa29d9000b329a3e99e117d"},"schema_version":"1.0"},"canonical_sha256":"4251611999e7dcd589561ac9eda64e83ec9331aa2b5173e0260b98abb474cbd3","source":{"kind":"arxiv","id":"2112.15249","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.15249","created_at":"2026-07-05T05:01:17Z"},{"alias_kind":"arxiv_version","alias_value":"2112.15249v1","created_at":"2026-07-05T05:01:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.15249","created_at":"2026-07-05T05:01:17Z"},{"alias_kind":"pith_short_12","alias_value":"IJIWCGMZ47ON","created_at":"2026-07-05T05:01:17Z"},{"alias_kind":"pith_short_16","alias_value":"IJIWCGMZ47ONLCKW","created_at":"2026-07-05T05:01:17Z"},{"alias_kind":"pith_short_8","alias_value":"IJIWCGMZ","created_at":"2026-07-05T05:01:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:IJIWCGMZ47ONLCKWDLE63JSOQP","target":"record","payload":{"canonical_record":{"source":{"id":"2112.15249","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-12-31T00:25:33Z","cross_cats_sorted":[],"title_canon_sha256":"46a47f5b66fd4fff9cca73aaa5617c0ab7eaf3b04e6df291e06a4bf1bcca4756","abstract_canon_sha256":"627a3860baf169e2febae6977115ed299efc7c8bbaa29d9000b329a3e99e117d"},"schema_version":"1.0"},"canonical_sha256":"4251611999e7dcd589561ac9eda64e83ec9331aa2b5173e0260b98abb474cbd3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:01:17.780233Z","signature_b64":"edUf0QJCDN5YgTa7L7VGdm3EEFKLzy4ffyzF5ZbNdB70yl8JkLHkqEehpW/iUZWX+1cImmkWm00rFlh0+R9ZDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4251611999e7dcd589561ac9eda64e83ec9331aa2b5173e0260b98abb474cbd3","last_reissued_at":"2026-07-05T05:01:17.779696Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:01:17.779696Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2112.15249","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":"2026-07-05T05:01:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r8rVd6qjcTDZTtoBkoLN25RDohsf8LnfxrZ9znFmrviwbR1pRvWSJ14IhNMclkHIi2vqAOTPHfr9h8JZnvF5DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T02:55:32.626816Z"},"content_sha256":"863d8e456e75c63260d20eceaef4e4a5e6918be6da359e5f898bf8771b177377","schema_version":"1.0","event_id":"sha256:863d8e456e75c63260d20eceaef4e4a5e6918be6da359e5f898bf8771b177377"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:IJIWCGMZ47ONLCKWDLE63JSOQP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observational Constraints on $f(T)$ Gravity from Model-Independent Data","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"F. B. M. dos Santos, J. E. Gonzalez, R. SIlva","submitted_at":"2021-12-31T00:25:33Z","abstract_excerpt":"We establish new constraints on $f(T)$ gravity models by using cosmological data. In particular, we investigate the restrictions given by the gas mass fraction measurements of galaxy clusters and transversal BAO data. Both data sets are regarded as weakly dependent on a fiducial cosmology. In addition, we also include a CMB measurement of the temperature power spectrum first peak, along with $H(z)$ values from cosmic chronometers and supernovae data from the Pantheon data set. We also perform a forecast for future constraints on the deviation of $f(T)$ models from the $\\Lambda$CDM scenario by "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.15249","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/2112.15249/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":"2026-07-05T05:01:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h3PCPdsLYoVpdqk+rWT0MAZcQZxBucqxBQxV4EoUAKuHlWu4YyNwiqZrS3CFjKFQlEks/UTBcQ4aRuZz0nqyDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T02:55:32.627314Z"},"content_sha256":"bc736d5409403a2e9a4053eedd8f230aa0ba65a15378838bff27c4ed15fe9e7d","schema_version":"1.0","event_id":"sha256:bc736d5409403a2e9a4053eedd8f230aa0ba65a15378838bff27c4ed15fe9e7d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IJIWCGMZ47ONLCKWDLE63JSOQP/bundle.json","state_url":"https://pith.science/pith/IJIWCGMZ47ONLCKWDLE63JSOQP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IJIWCGMZ47ONLCKWDLE63JSOQP/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":"2026-08-09T02:55:32Z","links":{"resolver":"https://pith.science/pith/IJIWCGMZ47ONLCKWDLE63JSOQP","bundle":"https://pith.science/pith/IJIWCGMZ47ONLCKWDLE63JSOQP/bundle.json","state":"https://pith.science/pith/IJIWCGMZ47ONLCKWDLE63JSOQP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IJIWCGMZ47ONLCKWDLE63JSOQP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:IJIWCGMZ47ONLCKWDLE63JSOQP","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":"627a3860baf169e2febae6977115ed299efc7c8bbaa29d9000b329a3e99e117d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-12-31T00:25:33Z","title_canon_sha256":"46a47f5b66fd4fff9cca73aaa5617c0ab7eaf3b04e6df291e06a4bf1bcca4756"},"schema_version":"1.0","source":{"id":"2112.15249","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.15249","created_at":"2026-07-05T05:01:17Z"},{"alias_kind":"arxiv_version","alias_value":"2112.15249v1","created_at":"2026-07-05T05:01:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.15249","created_at":"2026-07-05T05:01:17Z"},{"alias_kind":"pith_short_12","alias_value":"IJIWCGMZ47ON","created_at":"2026-07-05T05:01:17Z"},{"alias_kind":"pith_short_16","alias_value":"IJIWCGMZ47ONLCKW","created_at":"2026-07-05T05:01:17Z"},{"alias_kind":"pith_short_8","alias_value":"IJIWCGMZ","created_at":"2026-07-05T05:01:17Z"}],"graph_snapshots":[{"event_id":"sha256:bc736d5409403a2e9a4053eedd8f230aa0ba65a15378838bff27c4ed15fe9e7d","target":"graph","created_at":"2026-07-05T05:01:17Z","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/2112.15249/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We establish new constraints on $f(T)$ gravity models by using cosmological data. In particular, we investigate the restrictions given by the gas mass fraction measurements of galaxy clusters and transversal BAO data. Both data sets are regarded as weakly dependent on a fiducial cosmology. In addition, we also include a CMB measurement of the temperature power spectrum first peak, along with $H(z)$ values from cosmic chronometers and supernovae data from the Pantheon data set. We also perform a forecast for future constraints on the deviation of $f(T)$ models from the $\\Lambda$CDM scenario by ","authors_text":"F. B. M. dos Santos, J. E. Gonzalez, R. SIlva","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-12-31T00:25:33Z","title":"Observational Constraints on $f(T)$ Gravity from Model-Independent Data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.15249","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":"sha256:863d8e456e75c63260d20eceaef4e4a5e6918be6da359e5f898bf8771b177377","target":"record","created_at":"2026-07-05T05:01:17Z","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":"627a3860baf169e2febae6977115ed299efc7c8bbaa29d9000b329a3e99e117d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-12-31T00:25:33Z","title_canon_sha256":"46a47f5b66fd4fff9cca73aaa5617c0ab7eaf3b04e6df291e06a4bf1bcca4756"},"schema_version":"1.0","source":{"id":"2112.15249","kind":"arxiv","version":1}},"canonical_sha256":"4251611999e7dcd589561ac9eda64e83ec9331aa2b5173e0260b98abb474cbd3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4251611999e7dcd589561ac9eda64e83ec9331aa2b5173e0260b98abb474cbd3","first_computed_at":"2026-07-05T05:01:17.779696Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:01:17.779696Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"edUf0QJCDN5YgTa7L7VGdm3EEFKLzy4ffyzF5ZbNdB70yl8JkLHkqEehpW/iUZWX+1cImmkWm00rFlh0+R9ZDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:01:17.780233Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.15249","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:863d8e456e75c63260d20eceaef4e4a5e6918be6da359e5f898bf8771b177377","sha256:bc736d5409403a2e9a4053eedd8f230aa0ba65a15378838bff27c4ed15fe9e7d"],"state_sha256":"500b56687363d26f5405c9d4d03de19e37fb7146f87f90e5b3536fe0339f8ea2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yAT+ptaENkkvnJ5xjKJ/5TSX6rrvDewuk5/rKqM30xz0E3GIolC/iVJ/wL3wNSmTPJb9t1cfHy+nRKFdpNABCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T02:55:32.630814Z","bundle_sha256":"aaeba79b2159edc916336991cf033b5daef72f663b551d02f4fbae55c4d31c08"}}