{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:FU5HK6YYDP5JEBBPRP2S7VW4KI","short_pith_number":"pith:FU5HK6YY","canonical_record":{"source":{"id":"0803.3619","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-03-25T20:00:07Z","cross_cats_sorted":[],"title_canon_sha256":"6f68fef7479df9742e9317e1de3c8fc69243e20bfde1f66d97d6f3a8278821e0","abstract_canon_sha256":"2e21799b3441126d7cd7a00459d67979d8b4aad119b1dd52f74685eb463ada18"},"schema_version":"1.0"},"canonical_sha256":"2d3a757b181bfa92042f8bf52fd6dc5223534f89d6a3fc5fd0e86a6b90223e66","source":{"kind":"arxiv","id":"0803.3619","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0803.3619","created_at":"2026-07-04T17:09:57Z"},{"alias_kind":"arxiv_version","alias_value":"0803.3619v2","created_at":"2026-07-04T17:09:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0803.3619","created_at":"2026-07-04T17:09:57Z"},{"alias_kind":"pith_short_12","alias_value":"FU5HK6YYDP5J","created_at":"2026-07-04T17:09:57Z"},{"alias_kind":"pith_short_16","alias_value":"FU5HK6YYDP5JEBBP","created_at":"2026-07-04T17:09:57Z"},{"alias_kind":"pith_short_8","alias_value":"FU5HK6YY","created_at":"2026-07-04T17:09:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:FU5HK6YYDP5JEBBPRP2S7VW4KI","target":"record","payload":{"canonical_record":{"source":{"id":"0803.3619","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-03-25T20:00:07Z","cross_cats_sorted":[],"title_canon_sha256":"6f68fef7479df9742e9317e1de3c8fc69243e20bfde1f66d97d6f3a8278821e0","abstract_canon_sha256":"2e21799b3441126d7cd7a00459d67979d8b4aad119b1dd52f74685eb463ada18"},"schema_version":"1.0"},"canonical_sha256":"2d3a757b181bfa92042f8bf52fd6dc5223534f89d6a3fc5fd0e86a6b90223e66","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:09:57.570876Z","signature_b64":"XtrD6yC/03EemCDrDZVcX2tTiArrbCNYkv8xkYhYtPZwyIQ2S5ykbSVTVjv2arisQcGdaaHJ8UZbK7gGGT9GAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2d3a757b181bfa92042f8bf52fd6dc5223534f89d6a3fc5fd0e86a6b90223e66","last_reissued_at":"2026-07-04T17:09:57.570384Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:09:57.570384Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0803.3619","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":"2026-07-04T17:09:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M1EUFCUBbZQ/bnvGwhWeP2dla01/U/jTEjGaSWwUdqZfCb3gKt585z4StU7lpuHyX5bk2Cwko+AyFnA30uLnBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T05:01:09.498909Z"},"content_sha256":"64ce9bfec884b9d5341d8a3d91ad31c55fc34a545e1647064f5091fef39f7d76","schema_version":"1.0","event_id":"sha256:64ce9bfec884b9d5341d8a3d91ad31c55fc34a545e1647064f5091fef39f7d76"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:FU5HK6YYDP5JEBBPRP2S7VW4KI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Solar rotation rate and its gradients during cycle 23","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"H.M. Antia, Sarbani Basu, S. M. Chitre","submitted_at":"2008-03-25T20:00:07Z","abstract_excerpt":"Available helioseismic data now span almost the entire solar activity cycle 23 making it possible to study solar-cycle related changes of the solar rotation rate in detail. In this paper we study how the solar rotation rate, in particular, the zonal flows change with time. In addition to the zonal flows that show a well known pattern in the solar convection zone, we also study changes in the radial and latitudinal gradients of the rotation rate, particularly in the shear layer that is present in the immediate sub-surface layers of the Sun. In the case of the zonal-flow pattern, we find that th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0803.3619","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/0803.3619/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":"2026-07-04T17:09:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7EKSEq1Mre1elmiLh1+jsL/5NaNSRzxesKaA+zqgez1cFMJoiZDe8+nOdjt+TrYiIrWqov3LRWZ7+zid4zVyCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T05:01:09.499379Z"},"content_sha256":"9359febc7cac5ea604c816f6578130e1c79e81f1de1906ca60492dfa7ae1ccfc","schema_version":"1.0","event_id":"sha256:9359febc7cac5ea604c816f6578130e1c79e81f1de1906ca60492dfa7ae1ccfc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FU5HK6YYDP5JEBBPRP2S7VW4KI/bundle.json","state_url":"https://pith.science/pith/FU5HK6YYDP5JEBBPRP2S7VW4KI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FU5HK6YYDP5JEBBPRP2S7VW4KI/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":"2026-08-05T05:01:09Z","links":{"resolver":"https://pith.science/pith/FU5HK6YYDP5JEBBPRP2S7VW4KI","bundle":"https://pith.science/pith/FU5HK6YYDP5JEBBPRP2S7VW4KI/bundle.json","state":"https://pith.science/pith/FU5HK6YYDP5JEBBPRP2S7VW4KI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FU5HK6YYDP5JEBBPRP2S7VW4KI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:FU5HK6YYDP5JEBBPRP2S7VW4KI","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":"2e21799b3441126d7cd7a00459d67979d8b4aad119b1dd52f74685eb463ada18","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-03-25T20:00:07Z","title_canon_sha256":"6f68fef7479df9742e9317e1de3c8fc69243e20bfde1f66d97d6f3a8278821e0"},"schema_version":"1.0","source":{"id":"0803.3619","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0803.3619","created_at":"2026-07-04T17:09:57Z"},{"alias_kind":"arxiv_version","alias_value":"0803.3619v2","created_at":"2026-07-04T17:09:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0803.3619","created_at":"2026-07-04T17:09:57Z"},{"alias_kind":"pith_short_12","alias_value":"FU5HK6YYDP5J","created_at":"2026-07-04T17:09:57Z"},{"alias_kind":"pith_short_16","alias_value":"FU5HK6YYDP5JEBBP","created_at":"2026-07-04T17:09:57Z"},{"alias_kind":"pith_short_8","alias_value":"FU5HK6YY","created_at":"2026-07-04T17:09:57Z"}],"graph_snapshots":[{"event_id":"sha256:9359febc7cac5ea604c816f6578130e1c79e81f1de1906ca60492dfa7ae1ccfc","target":"graph","created_at":"2026-07-04T17:09:57Z","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/0803.3619/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Available helioseismic data now span almost the entire solar activity cycle 23 making it possible to study solar-cycle related changes of the solar rotation rate in detail. In this paper we study how the solar rotation rate, in particular, the zonal flows change with time. In addition to the zonal flows that show a well known pattern in the solar convection zone, we also study changes in the radial and latitudinal gradients of the rotation rate, particularly in the shear layer that is present in the immediate sub-surface layers of the Sun. In the case of the zonal-flow pattern, we find that th","authors_text":"H.M. Antia, Sarbani Basu, S. M. Chitre","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-03-25T20:00:07Z","title":"Solar rotation rate and its gradients during cycle 23"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0803.3619","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":"sha256:64ce9bfec884b9d5341d8a3d91ad31c55fc34a545e1647064f5091fef39f7d76","target":"record","created_at":"2026-07-04T17:09:57Z","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":"2e21799b3441126d7cd7a00459d67979d8b4aad119b1dd52f74685eb463ada18","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-03-25T20:00:07Z","title_canon_sha256":"6f68fef7479df9742e9317e1de3c8fc69243e20bfde1f66d97d6f3a8278821e0"},"schema_version":"1.0","source":{"id":"0803.3619","kind":"arxiv","version":2}},"canonical_sha256":"2d3a757b181bfa92042f8bf52fd6dc5223534f89d6a3fc5fd0e86a6b90223e66","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2d3a757b181bfa92042f8bf52fd6dc5223534f89d6a3fc5fd0e86a6b90223e66","first_computed_at":"2026-07-04T17:09:57.570384Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:09:57.570384Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XtrD6yC/03EemCDrDZVcX2tTiArrbCNYkv8xkYhYtPZwyIQ2S5ykbSVTVjv2arisQcGdaaHJ8UZbK7gGGT9GAg==","signature_status":"signed_v1","signed_at":"2026-07-04T17:09:57.570876Z","signed_message":"canonical_sha256_bytes"},"source_id":"0803.3619","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:64ce9bfec884b9d5341d8a3d91ad31c55fc34a545e1647064f5091fef39f7d76","sha256:9359febc7cac5ea604c816f6578130e1c79e81f1de1906ca60492dfa7ae1ccfc"],"state_sha256":"e3adfb5442d04b128532d4fa162dfd400fc55e61cf1c256b10c0b354d8745d8d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xIN8YRgF1Vu/HGAALmPThSayW9eW3l35SMz4zpAdnJ6zKw4kuU9rGxwoOx1H1iIhtVxubPWnpfktzZeQESYlBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T05:01:09.502650Z","bundle_sha256":"0d3469636a451ff826bc5461340752e89d6154cbf599d993a4dec7481f818444"}}