{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:YK5DVTE4O3I76PK6CCSVA6ZIZO","short_pith_number":"pith:YK5DVTE4","canonical_record":{"source":{"id":"astro-ph/0607025","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-07-03T14:00:47Z","cross_cats_sorted":[],"title_canon_sha256":"df822b705a983c53127eed6f9f080560a3cbae1bbdcfc33db76fa8e5a8a11fec","abstract_canon_sha256":"e5b018375a461242b69149130e1f28a7f23bca60724fecb4066b1df84da09fe7"},"schema_version":"1.0"},"canonical_sha256":"c2ba3acc9c76d1ff3d5e10a5507b28cbbf295d8c6c368230fbdc69acde766396","source":{"kind":"arxiv","id":"astro-ph/0607025","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0607025","created_at":"2026-07-04T15:19:07Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0607025v1","created_at":"2026-07-04T15:19:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0607025","created_at":"2026-07-04T15:19:07Z"},{"alias_kind":"pith_short_12","alias_value":"YK5DVTE4O3I7","created_at":"2026-07-04T15:19:07Z"},{"alias_kind":"pith_short_16","alias_value":"YK5DVTE4O3I76PK6","created_at":"2026-07-04T15:19:07Z"},{"alias_kind":"pith_short_8","alias_value":"YK5DVTE4","created_at":"2026-07-04T15:19:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:YK5DVTE4O3I76PK6CCSVA6ZIZO","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0607025","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-07-03T14:00:47Z","cross_cats_sorted":[],"title_canon_sha256":"df822b705a983c53127eed6f9f080560a3cbae1bbdcfc33db76fa8e5a8a11fec","abstract_canon_sha256":"e5b018375a461242b69149130e1f28a7f23bca60724fecb4066b1df84da09fe7"},"schema_version":"1.0"},"canonical_sha256":"c2ba3acc9c76d1ff3d5e10a5507b28cbbf295d8c6c368230fbdc69acde766396","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:19:07.171884Z","signature_b64":"k/DBkHbeB/Iee88OgAmBiBo3LCJJsce5E0efVgcMgAIuDZTUA1/lyGeLdy/WQLJ/ktxvDGnYxr/ZMMMdXWCVBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c2ba3acc9c76d1ff3d5e10a5507b28cbbf295d8c6c368230fbdc69acde766396","last_reissued_at":"2026-07-04T15:19:07.171482Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:19:07.171482Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0607025","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":"2026-07-04T15:19:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"22tFQ01Q3P6DkO6XnkLrEfSDN0zvnXjEIO9fYXBNhord2+xiKhZjSqO6hkYBlibfBY4+BtrEvVAqjNtsMuQBDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T05:19:48.471481Z"},"content_sha256":"ffdbcdd682c0bf051abc6c1ef2a33ab805873f5899f8fd65e1d014d7615f03a7","schema_version":"1.0","event_id":"sha256:ffdbcdd682c0bf051abc6c1ef2a33ab805873f5899f8fd65e1d014d7615f03a7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:YK5DVTE4O3I76PK6CCSVA6ZIZO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"X-ray Spectral Study of the Photoionized Stellar Wind in Vela~X-1","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) KIPAC, (3) Department of Physics, (4) Kogakuin University, (5) Columbia Astrophysics Laboratory), Frederik Paerels (5), Fumiaki Nagase (1), Manabu Ishida (3), Masao Sako (2), Shin Watanabe (1), Stanford University, Steven M. Kahn (2), Tadayuki Takahashi (1) ((1) ISAS/JAXA, Takayoshi Kohmura (4), Tokyo Metropolitan University, Yoshitaka Ishisaki (3)","submitted_at":"2006-07-03T14:00:47Z","abstract_excerpt":"We present results from quantitative modeling and spectral analysis of the high mass X-ray binary Vela X-1 obtained with the Chandra HETGS. The spectra exhibit emission lines from H-like and He-like ions driven by photoionization, as well as fluorescent emission lines from several elements in lower charge states. In order to interpret and make full use of the high-quality data, we have developed a simulator, which calculates the ionization and thermal structure of a stellar wind photoionized by an X-ray source, and performs Monte Carlo simulations of X-ray photons propagating through the wind."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0607025","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/astro-ph/0607025/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":"2026-07-04T15:19:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WiX3xgWPHiNbhiGvSNPVxRbo/CEi4IkCZTgwJ+RZHboQZauUGdCi0SxLflHKyWoJE+hZnxx5L4Y6qDlz8LlqCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T05:19:48.472004Z"},"content_sha256":"364d2ce212ad5bb80690fde6d1a8feefc6bac1ed1f7c1b7dff930c3caa2ed9be","schema_version":"1.0","event_id":"sha256:364d2ce212ad5bb80690fde6d1a8feefc6bac1ed1f7c1b7dff930c3caa2ed9be"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YK5DVTE4O3I76PK6CCSVA6ZIZO/bundle.json","state_url":"https://pith.science/pith/YK5DVTE4O3I76PK6CCSVA6ZIZO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YK5DVTE4O3I76PK6CCSVA6ZIZO/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":"2026-08-07T05:19:48Z","links":{"resolver":"https://pith.science/pith/YK5DVTE4O3I76PK6CCSVA6ZIZO","bundle":"https://pith.science/pith/YK5DVTE4O3I76PK6CCSVA6ZIZO/bundle.json","state":"https://pith.science/pith/YK5DVTE4O3I76PK6CCSVA6ZIZO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YK5DVTE4O3I76PK6CCSVA6ZIZO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:YK5DVTE4O3I76PK6CCSVA6ZIZO","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":"e5b018375a461242b69149130e1f28a7f23bca60724fecb4066b1df84da09fe7","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-07-03T14:00:47Z","title_canon_sha256":"df822b705a983c53127eed6f9f080560a3cbae1bbdcfc33db76fa8e5a8a11fec"},"schema_version":"1.0","source":{"id":"astro-ph/0607025","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0607025","created_at":"2026-07-04T15:19:07Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0607025v1","created_at":"2026-07-04T15:19:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0607025","created_at":"2026-07-04T15:19:07Z"},{"alias_kind":"pith_short_12","alias_value":"YK5DVTE4O3I7","created_at":"2026-07-04T15:19:07Z"},{"alias_kind":"pith_short_16","alias_value":"YK5DVTE4O3I76PK6","created_at":"2026-07-04T15:19:07Z"},{"alias_kind":"pith_short_8","alias_value":"YK5DVTE4","created_at":"2026-07-04T15:19:07Z"}],"graph_snapshots":[{"event_id":"sha256:364d2ce212ad5bb80690fde6d1a8feefc6bac1ed1f7c1b7dff930c3caa2ed9be","target":"graph","created_at":"2026-07-04T15:19:07Z","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/astro-ph/0607025/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present results from quantitative modeling and spectral analysis of the high mass X-ray binary Vela X-1 obtained with the Chandra HETGS. The spectra exhibit emission lines from H-like and He-like ions driven by photoionization, as well as fluorescent emission lines from several elements in lower charge states. In order to interpret and make full use of the high-quality data, we have developed a simulator, which calculates the ionization and thermal structure of a stellar wind photoionized by an X-ray source, and performs Monte Carlo simulations of X-ray photons propagating through the wind.","authors_text":"(2) KIPAC, (3) Department of Physics, (4) Kogakuin University, (5) Columbia Astrophysics Laboratory), Frederik Paerels (5), Fumiaki Nagase (1), Manabu Ishida (3), Masao Sako (2), Shin Watanabe (1), Stanford University, Steven M. Kahn (2), Tadayuki Takahashi (1) ((1) ISAS/JAXA, Takayoshi Kohmura (4), Tokyo Metropolitan University, Yoshitaka Ishisaki (3)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-07-03T14:00:47Z","title":"X-ray Spectral Study of the Photoionized Stellar Wind in Vela~X-1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0607025","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:ffdbcdd682c0bf051abc6c1ef2a33ab805873f5899f8fd65e1d014d7615f03a7","target":"record","created_at":"2026-07-04T15:19:07Z","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":"e5b018375a461242b69149130e1f28a7f23bca60724fecb4066b1df84da09fe7","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-07-03T14:00:47Z","title_canon_sha256":"df822b705a983c53127eed6f9f080560a3cbae1bbdcfc33db76fa8e5a8a11fec"},"schema_version":"1.0","source":{"id":"astro-ph/0607025","kind":"arxiv","version":1}},"canonical_sha256":"c2ba3acc9c76d1ff3d5e10a5507b28cbbf295d8c6c368230fbdc69acde766396","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c2ba3acc9c76d1ff3d5e10a5507b28cbbf295d8c6c368230fbdc69acde766396","first_computed_at":"2026-07-04T15:19:07.171482Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:19:07.171482Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"k/DBkHbeB/Iee88OgAmBiBo3LCJJsce5E0efVgcMgAIuDZTUA1/lyGeLdy/WQLJ/ktxvDGnYxr/ZMMMdXWCVBA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:19:07.171884Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0607025","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ffdbcdd682c0bf051abc6c1ef2a33ab805873f5899f8fd65e1d014d7615f03a7","sha256:364d2ce212ad5bb80690fde6d1a8feefc6bac1ed1f7c1b7dff930c3caa2ed9be"],"state_sha256":"011ed7856f6eeefaaf3268bacfb57aec49b3700017165a4225c1ecb19c0590db"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HGJScbEwyTOKfiYAK/RRdniNA+15qm8YibPlEIKw02SfTdsAeaRqBDbyRDffYimdvKvLrBumHt3MSq/BpxzNBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T05:19:48.475958Z","bundle_sha256":"bf85bab2b46962643bbf0c50133cb6eedbe72a390f7dc41cdebbe60e2929bf16"}}