{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:YRLYMWEFWUQUT2YRERTJKBFFUV","short_pith_number":"pith:YRLYMWEF","canonical_record":{"source":{"id":"2311.18800","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-11-30T18:47:02Z","cross_cats_sorted":[],"title_canon_sha256":"cd0a23c300aab989aab46a658df16aa3eae6fe809d663cee1d95ee263a73ca68","abstract_canon_sha256":"c3ed51e04231d011bfbd78682af12282660768b8c1c5a9c799848421edbfec7e"},"schema_version":"1.0"},"canonical_sha256":"c457865885b52149eb1124669504a5a55db79bc134ba1addf7f091e9bc396661","source":{"kind":"arxiv","id":"2311.18800","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2311.18800","created_at":"2026-07-05T07:18:46Z"},{"alias_kind":"arxiv_version","alias_value":"2311.18800v1","created_at":"2026-07-05T07:18:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.18800","created_at":"2026-07-05T07:18:46Z"},{"alias_kind":"pith_short_12","alias_value":"YRLYMWEFWUQU","created_at":"2026-07-05T07:18:46Z"},{"alias_kind":"pith_short_16","alias_value":"YRLYMWEFWUQUT2YR","created_at":"2026-07-05T07:18:46Z"},{"alias_kind":"pith_short_8","alias_value":"YRLYMWEF","created_at":"2026-07-05T07:18:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:YRLYMWEFWUQUT2YRERTJKBFFUV","target":"record","payload":{"canonical_record":{"source":{"id":"2311.18800","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-11-30T18:47:02Z","cross_cats_sorted":[],"title_canon_sha256":"cd0a23c300aab989aab46a658df16aa3eae6fe809d663cee1d95ee263a73ca68","abstract_canon_sha256":"c3ed51e04231d011bfbd78682af12282660768b8c1c5a9c799848421edbfec7e"},"schema_version":"1.0"},"canonical_sha256":"c457865885b52149eb1124669504a5a55db79bc134ba1addf7f091e9bc396661","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:18:46.679450Z","signature_b64":"qJB8be1tK38dOH3jFJdbTHa2TeGAex0dfgojF7RtR58H9LuJACbGbhXxpBLiTkOvdR/+SBTRyDmicSkQGInhBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c457865885b52149eb1124669504a5a55db79bc134ba1addf7f091e9bc396661","last_reissued_at":"2026-07-05T07:18:46.678974Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:18:46.678974Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2311.18800","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":"2026-07-05T07:18:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/2+Q2aOQ5Lef4y5ant5f/YXpASRY3aMAIWH2MAS6wKYWyGEiWrxOmL7Gd93LDz+hzUYgNrxeNYQ1hHwnzR4HAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T13:53:02.885714Z"},"content_sha256":"9641886d345eaa824eb35acec3931893d89bd74904b5d07ad2ef67e091a4b374","schema_version":"1.0","event_id":"sha256:9641886d345eaa824eb35acec3931893d89bd74904b5d07ad2ef67e091a4b374"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:YRLYMWEFWUQUT2YRERTJKBFFUV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Differential Rotation of the Solar Chromosphere: A Century-long Perspective from Kodaikanal Solar Observatory Ca II K Data","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Bibhuti Kumar Jha, Dibya Kirti Mishra, Dipankar Banerjee, Ilaria Ermolli, Judhajeet Basu, Srinjana Routh, Subhamoy Chatterjee, Theodosios Chatzistergos","submitted_at":"2023-11-30T18:47:02Z","abstract_excerpt":"Chromospheric differential rotation is a key component in comprehending the atmospheric coupling between the chromosphere and the photosphere at different phases of the solar cycle. In this study, we therefore utilize the newly calibrated multidecadal Ca II K spectroheliograms (1907-2007) from the Kodaikanal Solar Observatory (KoSO) to investigate the differential rotation of the solar chromosphere using the technique of image cross-correlation. Our analysis yields the chromospheric differential rotation rate $\\Omega (\\theta) = (14.61\\pm 0.04 - 2.18\\pm 0.37\\sin^2{\\theta} - 1.10 \\pm 0.61\\sin^4{"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.18800","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/2311.18800/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":"2026-07-05T07:18:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fGJIRnc6TVt7yqIxCvWTbp1/4wwg3A11x/hsZN2Vo0ZOwxLbVPoQI9+RYcezaYgpDYLDs2M2G/4KbE4n1ZcIDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T13:53:02.886098Z"},"content_sha256":"1d1966c827aa1f18e2af58b5b5253ef68f17697119dfb73541a693e1948a2c4b","schema_version":"1.0","event_id":"sha256:1d1966c827aa1f18e2af58b5b5253ef68f17697119dfb73541a693e1948a2c4b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YRLYMWEFWUQUT2YRERTJKBFFUV/bundle.json","state_url":"https://pith.science/pith/YRLYMWEFWUQUT2YRERTJKBFFUV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YRLYMWEFWUQUT2YRERTJKBFFUV/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":"2026-07-05T13:53:02Z","links":{"resolver":"https://pith.science/pith/YRLYMWEFWUQUT2YRERTJKBFFUV","bundle":"https://pith.science/pith/YRLYMWEFWUQUT2YRERTJKBFFUV/bundle.json","state":"https://pith.science/pith/YRLYMWEFWUQUT2YRERTJKBFFUV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YRLYMWEFWUQUT2YRERTJKBFFUV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:YRLYMWEFWUQUT2YRERTJKBFFUV","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":"c3ed51e04231d011bfbd78682af12282660768b8c1c5a9c799848421edbfec7e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-11-30T18:47:02Z","title_canon_sha256":"cd0a23c300aab989aab46a658df16aa3eae6fe809d663cee1d95ee263a73ca68"},"schema_version":"1.0","source":{"id":"2311.18800","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2311.18800","created_at":"2026-07-05T07:18:46Z"},{"alias_kind":"arxiv_version","alias_value":"2311.18800v1","created_at":"2026-07-05T07:18:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.18800","created_at":"2026-07-05T07:18:46Z"},{"alias_kind":"pith_short_12","alias_value":"YRLYMWEFWUQU","created_at":"2026-07-05T07:18:46Z"},{"alias_kind":"pith_short_16","alias_value":"YRLYMWEFWUQUT2YR","created_at":"2026-07-05T07:18:46Z"},{"alias_kind":"pith_short_8","alias_value":"YRLYMWEF","created_at":"2026-07-05T07:18:46Z"}],"graph_snapshots":[{"event_id":"sha256:1d1966c827aa1f18e2af58b5b5253ef68f17697119dfb73541a693e1948a2c4b","target":"graph","created_at":"2026-07-05T07:18:46Z","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/2311.18800/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Chromospheric differential rotation is a key component in comprehending the atmospheric coupling between the chromosphere and the photosphere at different phases of the solar cycle. In this study, we therefore utilize the newly calibrated multidecadal Ca II K spectroheliograms (1907-2007) from the Kodaikanal Solar Observatory (KoSO) to investigate the differential rotation of the solar chromosphere using the technique of image cross-correlation. Our analysis yields the chromospheric differential rotation rate $\\Omega (\\theta) = (14.61\\pm 0.04 - 2.18\\pm 0.37\\sin^2{\\theta} - 1.10 \\pm 0.61\\sin^4{","authors_text":"Bibhuti Kumar Jha, Dibya Kirti Mishra, Dipankar Banerjee, Ilaria Ermolli, Judhajeet Basu, Srinjana Routh, Subhamoy Chatterjee, Theodosios Chatzistergos","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-11-30T18:47:02Z","title":"Differential Rotation of the Solar Chromosphere: A Century-long Perspective from Kodaikanal Solar Observatory Ca II K Data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.18800","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":"sha256:9641886d345eaa824eb35acec3931893d89bd74904b5d07ad2ef67e091a4b374","target":"record","created_at":"2026-07-05T07:18:46Z","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":"c3ed51e04231d011bfbd78682af12282660768b8c1c5a9c799848421edbfec7e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-11-30T18:47:02Z","title_canon_sha256":"cd0a23c300aab989aab46a658df16aa3eae6fe809d663cee1d95ee263a73ca68"},"schema_version":"1.0","source":{"id":"2311.18800","kind":"arxiv","version":1}},"canonical_sha256":"c457865885b52149eb1124669504a5a55db79bc134ba1addf7f091e9bc396661","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c457865885b52149eb1124669504a5a55db79bc134ba1addf7f091e9bc396661","first_computed_at":"2026-07-05T07:18:46.678974Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:18:46.678974Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qJB8be1tK38dOH3jFJdbTHa2TeGAex0dfgojF7RtR58H9LuJACbGbhXxpBLiTkOvdR/+SBTRyDmicSkQGInhBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T07:18:46.679450Z","signed_message":"canonical_sha256_bytes"},"source_id":"2311.18800","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9641886d345eaa824eb35acec3931893d89bd74904b5d07ad2ef67e091a4b374","sha256:1d1966c827aa1f18e2af58b5b5253ef68f17697119dfb73541a693e1948a2c4b"],"state_sha256":"614da9e84f15824b6b021535cc85dfd697992f8e5f05cdec17472fc9be03204b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MMh8B/lxa2Qu13chKN3jsdgQ0OIipuQyKwjVKA2oyvfmtIe7WeX3g//CUdnvhAxM4bTDdfVpIWk1+Snje1r2Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T13:53:02.888478Z","bundle_sha256":"040846c7eee4f15ff0b97942fcb06541368c398ae3b91c373b16e92727c6109b"}}