{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:LKNDNATVJJYUGXTMLEPEVAOCUA","short_pith_number":"pith:LKNDNATV","canonical_record":{"source":{"id":"1007.3839","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-07-22T09:44:51Z","cross_cats_sorted":[],"title_canon_sha256":"02a92de191957d368a521134df6cf74219ca5fc239689b2aec228b31f17cd2dd","abstract_canon_sha256":"469750a9cafe819b8911922e71ea18459ef56f3e373743228326b8c32b34a593"},"schema_version":"1.0"},"canonical_sha256":"5a9a3682754a71435e6c591e4a81c2a0354a29230ef6ec522e2ebc69e038f273","source":{"kind":"arxiv","id":"1007.3839","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1007.3839","created_at":"2026-05-18T02:06:11Z"},{"alias_kind":"arxiv_version","alias_value":"1007.3839v1","created_at":"2026-05-18T02:06:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1007.3839","created_at":"2026-05-18T02:06:11Z"},{"alias_kind":"pith_short_12","alias_value":"LKNDNATVJJYU","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"LKNDNATVJJYUGXTM","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"LKNDNATV","created_at":"2026-05-18T12:26:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:LKNDNATVJJYUGXTMLEPEVAOCUA","target":"record","payload":{"canonical_record":{"source":{"id":"1007.3839","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-07-22T09:44:51Z","cross_cats_sorted":[],"title_canon_sha256":"02a92de191957d368a521134df6cf74219ca5fc239689b2aec228b31f17cd2dd","abstract_canon_sha256":"469750a9cafe819b8911922e71ea18459ef56f3e373743228326b8c32b34a593"},"schema_version":"1.0"},"canonical_sha256":"5a9a3682754a71435e6c591e4a81c2a0354a29230ef6ec522e2ebc69e038f273","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:06:11.668646Z","signature_b64":"dFZj7l6c1vR53hERTE9qqNTPq7GK6VDVeZeEj4ij7fEbBqVU1HMClIJikx/QfpLMj5ZQHdKF7oenEePyp67sAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5a9a3682754a71435e6c591e4a81c2a0354a29230ef6ec522e2ebc69e038f273","last_reissued_at":"2026-05-18T02:06:11.668068Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:06:11.668068Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1007.3839","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":"2026-05-18T02:06:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s5xvGm9sSnDhgIftVBCKllQVo6DEqmYNRa0c7570M020L0X2Bx0d5DbeyPHZIMzAENANDd0clKqSIIyfe5VWCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T13:12:06.705610Z"},"content_sha256":"01741f59bb6cb421ccb28ed9561797c57e895fa54bd6654a9b44d60cad107e80","schema_version":"1.0","event_id":"sha256:01741f59bb6cb421ccb28ed9561797c57e895fa54bd6654a9b44d60cad107e80"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:LKNDNATVJJYUGXTMLEPEVAOCUA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Implications of X-Ray Line Variations for 4U1822-371","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Claude R. Canizares, Li Ji, Michael A. Nowak, Norbert S. Schulz","submitted_at":"2010-07-22T09:44:51Z","abstract_excerpt":"4U 1822-371 is one of the proto-type accretion disk coronal sources with an orbital period of about 5.6 hours. The binary is viewed almost edge-on at a high inclination angle of 83 degrees, which makes it a unique candidate to study binary orbital and accretion disk dynamics in high powered X-ray sources. We observed the X-ray source in 4U 1822-371 with the Chandra High Energy Transmission Grating Spectrometer (HETGS) for almost nine binary orbits. X-ray eclipse times provide an update of the orbital ephemeris. We find that our result follows the quadratic function implied by previous observat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.3839","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":"2026-05-18T02:06:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jdAMb/qWDfh/7tde+CziYIhliiM7OviM0OANT9aMNFzE/fDkQDevK8wIhc+VNqF+Dusahe6MWhKvIS0Sc27mBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T13:12:06.705961Z"},"content_sha256":"9e58a5e7923bd2d0e541159018d43e4f00f72e4600d250e1ae7d08fc5faf41f5","schema_version":"1.0","event_id":"sha256:9e58a5e7923bd2d0e541159018d43e4f00f72e4600d250e1ae7d08fc5faf41f5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LKNDNATVJJYUGXTMLEPEVAOCUA/bundle.json","state_url":"https://pith.science/pith/LKNDNATVJJYUGXTMLEPEVAOCUA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LKNDNATVJJYUGXTMLEPEVAOCUA/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":"2026-05-30T13:12:06Z","links":{"resolver":"https://pith.science/pith/LKNDNATVJJYUGXTMLEPEVAOCUA","bundle":"https://pith.science/pith/LKNDNATVJJYUGXTMLEPEVAOCUA/bundle.json","state":"https://pith.science/pith/LKNDNATVJJYUGXTMLEPEVAOCUA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LKNDNATVJJYUGXTMLEPEVAOCUA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:LKNDNATVJJYUGXTMLEPEVAOCUA","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":"469750a9cafe819b8911922e71ea18459ef56f3e373743228326b8c32b34a593","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-07-22T09:44:51Z","title_canon_sha256":"02a92de191957d368a521134df6cf74219ca5fc239689b2aec228b31f17cd2dd"},"schema_version":"1.0","source":{"id":"1007.3839","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1007.3839","created_at":"2026-05-18T02:06:11Z"},{"alias_kind":"arxiv_version","alias_value":"1007.3839v1","created_at":"2026-05-18T02:06:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1007.3839","created_at":"2026-05-18T02:06:11Z"},{"alias_kind":"pith_short_12","alias_value":"LKNDNATVJJYU","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"LKNDNATVJJYUGXTM","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"LKNDNATV","created_at":"2026-05-18T12:26:10Z"}],"graph_snapshots":[{"event_id":"sha256:9e58a5e7923bd2d0e541159018d43e4f00f72e4600d250e1ae7d08fc5faf41f5","target":"graph","created_at":"2026-05-18T02:06:11Z","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":"4U 1822-371 is one of the proto-type accretion disk coronal sources with an orbital period of about 5.6 hours. The binary is viewed almost edge-on at a high inclination angle of 83 degrees, which makes it a unique candidate to study binary orbital and accretion disk dynamics in high powered X-ray sources. We observed the X-ray source in 4U 1822-371 with the Chandra High Energy Transmission Grating Spectrometer (HETGS) for almost nine binary orbits. X-ray eclipse times provide an update of the orbital ephemeris. We find that our result follows the quadratic function implied by previous observat","authors_text":"Claude R. Canizares, Li Ji, Michael A. Nowak, Norbert S. Schulz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-07-22T09:44:51Z","title":"Implications of X-Ray Line Variations for 4U1822-371"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.3839","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":"sha256:01741f59bb6cb421ccb28ed9561797c57e895fa54bd6654a9b44d60cad107e80","target":"record","created_at":"2026-05-18T02:06:11Z","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":"469750a9cafe819b8911922e71ea18459ef56f3e373743228326b8c32b34a593","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-07-22T09:44:51Z","title_canon_sha256":"02a92de191957d368a521134df6cf74219ca5fc239689b2aec228b31f17cd2dd"},"schema_version":"1.0","source":{"id":"1007.3839","kind":"arxiv","version":1}},"canonical_sha256":"5a9a3682754a71435e6c591e4a81c2a0354a29230ef6ec522e2ebc69e038f273","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5a9a3682754a71435e6c591e4a81c2a0354a29230ef6ec522e2ebc69e038f273","first_computed_at":"2026-05-18T02:06:11.668068Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:06:11.668068Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dFZj7l6c1vR53hERTE9qqNTPq7GK6VDVeZeEj4ij7fEbBqVU1HMClIJikx/QfpLMj5ZQHdKF7oenEePyp67sAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:06:11.668646Z","signed_message":"canonical_sha256_bytes"},"source_id":"1007.3839","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:01741f59bb6cb421ccb28ed9561797c57e895fa54bd6654a9b44d60cad107e80","sha256:9e58a5e7923bd2d0e541159018d43e4f00f72e4600d250e1ae7d08fc5faf41f5"],"state_sha256":"710e7bd8c1a5d5e83451fe08adc4cc9605ac1f80739043f7ff94ca1a50f31639"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3ZfUJ4ap3idTCVSCZAeFWksuTW8hEsCavHZW1KjUfxdOxSy0mNtutYwPVYJCgXo+KRWTaSR/7QOWObxDR3GRCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T13:12:06.708008Z","bundle_sha256":"19c1f5bc5e11f405d5209ea609557a0bcd97f5c27c3b3e686f5132b7f717638a"}}