{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:IW7RVTAKJDGWIN7SP5V7TI5CIM","short_pith_number":"pith:IW7RVTAK","canonical_record":{"source":{"id":"2410.21456","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-10-28T19:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"9cb61e6b45d4a0a19d07e2ed68920c338c6109df2887aa1c0799eebd30d6c503","abstract_canon_sha256":"a6cf1b6775ab1d589d172693eed9b78d3b717c72812e821bc8dc8db94a4ca03c"},"schema_version":"1.0"},"canonical_sha256":"45bf1acc0a48cd6437f27f6bf9a3a2431b6138b6596f35dbb4f33e641d5e603a","source":{"kind":"arxiv","id":"2410.21456","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2410.21456","created_at":"2026-07-05T09:50:35Z"},{"alias_kind":"arxiv_version","alias_value":"2410.21456v1","created_at":"2026-07-05T09:50:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2410.21456","created_at":"2026-07-05T09:50:35Z"},{"alias_kind":"pith_short_12","alias_value":"IW7RVTAKJDGW","created_at":"2026-07-05T09:50:35Z"},{"alias_kind":"pith_short_16","alias_value":"IW7RVTAKJDGWIN7S","created_at":"2026-07-05T09:50:35Z"},{"alias_kind":"pith_short_8","alias_value":"IW7RVTAK","created_at":"2026-07-05T09:50:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:IW7RVTAKJDGWIN7SP5V7TI5CIM","target":"record","payload":{"canonical_record":{"source":{"id":"2410.21456","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-10-28T19:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"9cb61e6b45d4a0a19d07e2ed68920c338c6109df2887aa1c0799eebd30d6c503","abstract_canon_sha256":"a6cf1b6775ab1d589d172693eed9b78d3b717c72812e821bc8dc8db94a4ca03c"},"schema_version":"1.0"},"canonical_sha256":"45bf1acc0a48cd6437f27f6bf9a3a2431b6138b6596f35dbb4f33e641d5e603a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:50:35.456831Z","signature_b64":"xZLZt49e5Nea5ZCGBM40Jq0k/RJeMg96M0EtIYIKziOw9vVdRBefN2lT4+rOjCHR7hFwCxiP7d4e52e3fWZeCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"45bf1acc0a48cd6437f27f6bf9a3a2431b6138b6596f35dbb4f33e641d5e603a","last_reissued_at":"2026-07-05T09:50:35.456265Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:50:35.456265Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2410.21456","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":"2026-07-05T09:50:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7NKy8CBESd8Or88Ln/zE9qppA+z8Ik6GFpu0Le3TY8I/XAdtWNK229i2Q17HeACQ15kn2ULIcy4vocOgW00yCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T17:27:20.281641Z"},"content_sha256":"bdff192fabac49af521a42ec0e45cd23b825bd3a7103a0e3c516f6bcbff0f2ec","schema_version":"1.0","event_id":"sha256:bdff192fabac49af521a42ec0e45cd23b825bd3a7103a0e3c516f6bcbff0f2ec"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:IW7RVTAKJDGWIN7SP5V7TI5CIM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Variable structures in the stellar wind of the HMXB Vela X-1","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Manousakis, C. M. Diez, F. F\\\"urst, I. El Mellah, L. Abalo, M. Guainazzi, M.W. Beijersbergen, M. Zhou, P. Kretschmar, R. Amato, S. Mart\\'inez-N\\'u\\~nez, V. Grinberg","submitted_at":"2024-10-28T19:00:00Z","abstract_excerpt":"Strong stellar winds are an important feature in wind-accreting high-mass X-ray binary (HMXB) systems, providing insights into stellar evolution and their impact on surrounding environments. However, the long-term evolution and temporal variability of these winds are not fully understood. This work probes the archetypal wind-accreting HMXB Vela X-1 using MAXI observations over 14 years, focusing on orbit-to-orbit absorption variability in the 2-10 keV band. Additionally, the relation between hardness ratio trends in binary orbits and neutron star spin states is investigated. We calculate hardn"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.21456","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/2410.21456/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":"2026-07-05T09:50:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l7MvyE0wEXc1tedt1/R+Os4jMIiOoenxfJIR0rXtGGKOe8eTMDFueS2Obr5+1F6jF0zVSriOmak88A46JPY3BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T17:27:20.282168Z"},"content_sha256":"e659acafc7af3e4940176267bc6b01ba89681185d557dfeb2b9084bf7584f8b0","schema_version":"1.0","event_id":"sha256:e659acafc7af3e4940176267bc6b01ba89681185d557dfeb2b9084bf7584f8b0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IW7RVTAKJDGWIN7SP5V7TI5CIM/bundle.json","state_url":"https://pith.science/pith/IW7RVTAKJDGWIN7SP5V7TI5CIM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IW7RVTAKJDGWIN7SP5V7TI5CIM/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":"2026-08-03T17:27:20Z","links":{"resolver":"https://pith.science/pith/IW7RVTAKJDGWIN7SP5V7TI5CIM","bundle":"https://pith.science/pith/IW7RVTAKJDGWIN7SP5V7TI5CIM/bundle.json","state":"https://pith.science/pith/IW7RVTAKJDGWIN7SP5V7TI5CIM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IW7RVTAKJDGWIN7SP5V7TI5CIM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:IW7RVTAKJDGWIN7SP5V7TI5CIM","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":"a6cf1b6775ab1d589d172693eed9b78d3b717c72812e821bc8dc8db94a4ca03c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-10-28T19:00:00Z","title_canon_sha256":"9cb61e6b45d4a0a19d07e2ed68920c338c6109df2887aa1c0799eebd30d6c503"},"schema_version":"1.0","source":{"id":"2410.21456","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2410.21456","created_at":"2026-07-05T09:50:35Z"},{"alias_kind":"arxiv_version","alias_value":"2410.21456v1","created_at":"2026-07-05T09:50:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2410.21456","created_at":"2026-07-05T09:50:35Z"},{"alias_kind":"pith_short_12","alias_value":"IW7RVTAKJDGW","created_at":"2026-07-05T09:50:35Z"},{"alias_kind":"pith_short_16","alias_value":"IW7RVTAKJDGWIN7S","created_at":"2026-07-05T09:50:35Z"},{"alias_kind":"pith_short_8","alias_value":"IW7RVTAK","created_at":"2026-07-05T09:50:35Z"}],"graph_snapshots":[{"event_id":"sha256:e659acafc7af3e4940176267bc6b01ba89681185d557dfeb2b9084bf7584f8b0","target":"graph","created_at":"2026-07-05T09:50:35Z","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/2410.21456/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Strong stellar winds are an important feature in wind-accreting high-mass X-ray binary (HMXB) systems, providing insights into stellar evolution and their impact on surrounding environments. However, the long-term evolution and temporal variability of these winds are not fully understood. This work probes the archetypal wind-accreting HMXB Vela X-1 using MAXI observations over 14 years, focusing on orbit-to-orbit absorption variability in the 2-10 keV band. Additionally, the relation between hardness ratio trends in binary orbits and neutron star spin states is investigated. We calculate hardn","authors_text":"A. Manousakis, C. M. Diez, F. F\\\"urst, I. El Mellah, L. Abalo, M. Guainazzi, M.W. Beijersbergen, M. Zhou, P. Kretschmar, R. Amato, S. Mart\\'inez-N\\'u\\~nez, V. Grinberg","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-10-28T19:00:00Z","title":"Variable structures in the stellar wind of the HMXB Vela X-1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.21456","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:bdff192fabac49af521a42ec0e45cd23b825bd3a7103a0e3c516f6bcbff0f2ec","target":"record","created_at":"2026-07-05T09:50:35Z","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":"a6cf1b6775ab1d589d172693eed9b78d3b717c72812e821bc8dc8db94a4ca03c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-10-28T19:00:00Z","title_canon_sha256":"9cb61e6b45d4a0a19d07e2ed68920c338c6109df2887aa1c0799eebd30d6c503"},"schema_version":"1.0","source":{"id":"2410.21456","kind":"arxiv","version":1}},"canonical_sha256":"45bf1acc0a48cd6437f27f6bf9a3a2431b6138b6596f35dbb4f33e641d5e603a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"45bf1acc0a48cd6437f27f6bf9a3a2431b6138b6596f35dbb4f33e641d5e603a","first_computed_at":"2026-07-05T09:50:35.456265Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:50:35.456265Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xZLZt49e5Nea5ZCGBM40Jq0k/RJeMg96M0EtIYIKziOw9vVdRBefN2lT4+rOjCHR7hFwCxiP7d4e52e3fWZeCg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:50:35.456831Z","signed_message":"canonical_sha256_bytes"},"source_id":"2410.21456","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bdff192fabac49af521a42ec0e45cd23b825bd3a7103a0e3c516f6bcbff0f2ec","sha256:e659acafc7af3e4940176267bc6b01ba89681185d557dfeb2b9084bf7584f8b0"],"state_sha256":"d5c8c4c3a482e003a7483920c89277f6b699041a90ccb544b9c620670d3c0646"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8ninm8CAsVGVWDI3HrVJJM8gpjjEG2wBNclNfXrjl0gh1r4LNMkYLxYUCQ98djf1fnm4AQ0yE1aSunR2ANi+Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T17:27:20.287782Z","bundle_sha256":"79ca3b88690c25e42bbc3d025c566672e2da93b6d4e6be0c12e162602e8cea92"}}