{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:P6GRRFJC22WA7AXDMJVDKNKC6A","short_pith_number":"pith:P6GRRFJC","canonical_record":{"source":{"id":"1409.3224","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-09-10T20:00:05Z","cross_cats_sorted":[],"title_canon_sha256":"6714429f0bdbe0bca16cce0f95e160640cde424cccd1107c9e31e486308e26ef","abstract_canon_sha256":"271fabdc5788d80e9be5f3397f7dc5dee87f614423537969ec4560368c2abfce"},"schema_version":"1.0"},"canonical_sha256":"7f8d189522d6ac0f82e3626a353542f01060cd918022ac0b3341c5e286063cca","source":{"kind":"arxiv","id":"1409.3224","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.3224","created_at":"2026-05-18T01:42:03Z"},{"alias_kind":"arxiv_version","alias_value":"1409.3224v1","created_at":"2026-05-18T01:42:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.3224","created_at":"2026-05-18T01:42:03Z"},{"alias_kind":"pith_short_12","alias_value":"P6GRRFJC22WA","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"P6GRRFJC22WA7AXD","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"P6GRRFJC","created_at":"2026-05-18T12:28:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:P6GRRFJC22WA7AXDMJVDKNKC6A","target":"record","payload":{"canonical_record":{"source":{"id":"1409.3224","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-09-10T20:00:05Z","cross_cats_sorted":[],"title_canon_sha256":"6714429f0bdbe0bca16cce0f95e160640cde424cccd1107c9e31e486308e26ef","abstract_canon_sha256":"271fabdc5788d80e9be5f3397f7dc5dee87f614423537969ec4560368c2abfce"},"schema_version":"1.0"},"canonical_sha256":"7f8d189522d6ac0f82e3626a353542f01060cd918022ac0b3341c5e286063cca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:03.659198Z","signature_b64":"BsQt0/f/zacfZTqbfRBuMc0p3ueE03S5YknueYa8DGR6x2rv6ReGCg4ATHv54Il1KONAx8/a6vQ79xTZZ3V2Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7f8d189522d6ac0f82e3626a353542f01060cd918022ac0b3341c5e286063cca","last_reissued_at":"2026-05-18T01:42:03.658679Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:03.658679Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.3224","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":"2026-05-18T01:42:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hx14dkQRz4EYEG+QBSRDQmYgjbXbJKYbKzFveLYaREIyWXFYZaCRK5+ESqUl6nzqoCG7jRWYmBdkKfP6QSvqDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:51:34.676842Z"},"content_sha256":"c032ba62bdeec72de4a836cb343bfeba2a49854b7b1aec34b2fa9a06b9ccb067","schema_version":"1.0","event_id":"sha256:c032ba62bdeec72de4a836cb343bfeba2a49854b7b1aec34b2fa9a06b9ccb067"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:P6GRRFJC22WA7AXDMJVDKNKC6A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Fe K absorption - accretion state connection in the Galactic center neutron star X-ray binary AX J1745.6-2901","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Goldwurm, A. Rushton, B. DeMarco, C. J. Hailey, C. O. Heinke, D. Haggard, G. L. Israel, G. Ponti, K. Mori, K. Nandra, M. Clavel, M. R. Morris, N. Degenaar, N. Rea, R. P. Fender, R. Terrier, S. Bianchi, T. Aramaki, T. Dwelly, T. Munoz-Darias","submitted_at":"2014-09-10T20:00:05Z","abstract_excerpt":"AX J1745.6-2901 is a high-inclination (eclipsing) neutron star Low Mass X-ray Binary (LMXB) located less than ~1.5 arcmin from Sgr A*. Ongoing monitoring campaigns have targeted Sgr A* frequently and these observations also cover AX J1745.6-2901. We present here an X-ray analysis of AX J1745.6-2901 using a large dataset of 38 XMM-Newton observations, including eleven which caught AX J1745.6-2901 in outburst. Fe K absorption is clearly seen when AX J1745.6-2901 is in the soft state, but disappears during the hard state. The variability of these absorption features does not appear to be due to c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.3224","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":""},"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":"2026-05-18T01:42:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cG4F95emP9cZBNYYjgytcdK55REahrMP6ve8R7vEGN3kNx7/b/j8ueiPtbmaWDbSQt2M/c0UkDZYwvOGKpK6BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T19:51:34.677218Z"},"content_sha256":"0aa6e62e928675aee9dbc38371657eb00e065d270895add2bd1d68ae4e8022ee","schema_version":"1.0","event_id":"sha256:0aa6e62e928675aee9dbc38371657eb00e065d270895add2bd1d68ae4e8022ee"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P6GRRFJC22WA7AXDMJVDKNKC6A/bundle.json","state_url":"https://pith.science/pith/P6GRRFJC22WA7AXDMJVDKNKC6A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P6GRRFJC22WA7AXDMJVDKNKC6A/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":"2026-05-28T19:51:34Z","links":{"resolver":"https://pith.science/pith/P6GRRFJC22WA7AXDMJVDKNKC6A","bundle":"https://pith.science/pith/P6GRRFJC22WA7AXDMJVDKNKC6A/bundle.json","state":"https://pith.science/pith/P6GRRFJC22WA7AXDMJVDKNKC6A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P6GRRFJC22WA7AXDMJVDKNKC6A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:P6GRRFJC22WA7AXDMJVDKNKC6A","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":"271fabdc5788d80e9be5f3397f7dc5dee87f614423537969ec4560368c2abfce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-09-10T20:00:05Z","title_canon_sha256":"6714429f0bdbe0bca16cce0f95e160640cde424cccd1107c9e31e486308e26ef"},"schema_version":"1.0","source":{"id":"1409.3224","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.3224","created_at":"2026-05-18T01:42:03Z"},{"alias_kind":"arxiv_version","alias_value":"1409.3224v1","created_at":"2026-05-18T01:42:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.3224","created_at":"2026-05-18T01:42:03Z"},{"alias_kind":"pith_short_12","alias_value":"P6GRRFJC22WA","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"P6GRRFJC22WA7AXD","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"P6GRRFJC","created_at":"2026-05-18T12:28:43Z"}],"graph_snapshots":[{"event_id":"sha256:0aa6e62e928675aee9dbc38371657eb00e065d270895add2bd1d68ae4e8022ee","target":"graph","created_at":"2026-05-18T01:42:03Z","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"},"paper":{"abstract_excerpt":"AX J1745.6-2901 is a high-inclination (eclipsing) neutron star Low Mass X-ray Binary (LMXB) located less than ~1.5 arcmin from Sgr A*. Ongoing monitoring campaigns have targeted Sgr A* frequently and these observations also cover AX J1745.6-2901. We present here an X-ray analysis of AX J1745.6-2901 using a large dataset of 38 XMM-Newton observations, including eleven which caught AX J1745.6-2901 in outburst. Fe K absorption is clearly seen when AX J1745.6-2901 is in the soft state, but disappears during the hard state. The variability of these absorption features does not appear to be due to c","authors_text":"A. Goldwurm, A. Rushton, B. DeMarco, C. J. Hailey, C. O. Heinke, D. Haggard, G. L. Israel, G. Ponti, K. Mori, K. Nandra, M. Clavel, M. R. Morris, N. Degenaar, N. Rea, R. P. Fender, R. Terrier, S. Bianchi, T. Aramaki, T. Dwelly, T. Munoz-Darias","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-09-10T20:00:05Z","title":"On the Fe K absorption - accretion state connection in the Galactic center neutron star X-ray binary AX J1745.6-2901"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.3224","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:c032ba62bdeec72de4a836cb343bfeba2a49854b7b1aec34b2fa9a06b9ccb067","target":"record","created_at":"2026-05-18T01:42:03Z","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":"271fabdc5788d80e9be5f3397f7dc5dee87f614423537969ec4560368c2abfce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-09-10T20:00:05Z","title_canon_sha256":"6714429f0bdbe0bca16cce0f95e160640cde424cccd1107c9e31e486308e26ef"},"schema_version":"1.0","source":{"id":"1409.3224","kind":"arxiv","version":1}},"canonical_sha256":"7f8d189522d6ac0f82e3626a353542f01060cd918022ac0b3341c5e286063cca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f8d189522d6ac0f82e3626a353542f01060cd918022ac0b3341c5e286063cca","first_computed_at":"2026-05-18T01:42:03.658679Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:03.658679Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BsQt0/f/zacfZTqbfRBuMc0p3ueE03S5YknueYa8DGR6x2rv6ReGCg4ATHv54Il1KONAx8/a6vQ79xTZZ3V2Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:03.659198Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.3224","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c032ba62bdeec72de4a836cb343bfeba2a49854b7b1aec34b2fa9a06b9ccb067","sha256:0aa6e62e928675aee9dbc38371657eb00e065d270895add2bd1d68ae4e8022ee"],"state_sha256":"883b4786a8af90a408928412cd7dba1bf2dc71df0454dccfa648d10142a0c4c3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M3jOYlE1Uy4itQcOV9m/aHnaJW2ypOxbyWrcx91Kj4mnyWQjmD81aIo0swGr7F3XAkU7z0y/yNB7hCuPJHCDCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T19:51:34.679279Z","bundle_sha256":"ace889cea04bca18ac0936cfbaaaca17bec54efa29030ecc2cd2d2ede9740289"}}