{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:HJZP2OQHVHIPH4WA7C5DQY74RD","short_pith_number":"pith:HJZP2OQH","canonical_record":{"source":{"id":"0909.2567","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-14T15:10:04Z","cross_cats_sorted":[],"title_canon_sha256":"11e193440eafd8969c2151a3f9c8436269964fa5f946a7a00a2e68e05066d956","abstract_canon_sha256":"95a72b396e172243a9bb90032b845dd1782483e6a79e8a71cfda2ce5f4f7e57e"},"schema_version":"1.0"},"canonical_sha256":"3a72fd3a07a9d0f3f2c0f8ba3863fc88d6f45d8868c3f9699f3e063f96aed4bb","source":{"kind":"arxiv","id":"0909.2567","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.2567","created_at":"2026-05-18T02:34:30Z"},{"alias_kind":"arxiv_version","alias_value":"0909.2567v1","created_at":"2026-05-18T02:34:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.2567","created_at":"2026-05-18T02:34:30Z"},{"alias_kind":"pith_short_12","alias_value":"HJZP2OQHVHIP","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"HJZP2OQHVHIPH4WA","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"HJZP2OQH","created_at":"2026-05-18T12:25:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:HJZP2OQHVHIPH4WA7C5DQY74RD","target":"record","payload":{"canonical_record":{"source":{"id":"0909.2567","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-14T15:10:04Z","cross_cats_sorted":[],"title_canon_sha256":"11e193440eafd8969c2151a3f9c8436269964fa5f946a7a00a2e68e05066d956","abstract_canon_sha256":"95a72b396e172243a9bb90032b845dd1782483e6a79e8a71cfda2ce5f4f7e57e"},"schema_version":"1.0"},"canonical_sha256":"3a72fd3a07a9d0f3f2c0f8ba3863fc88d6f45d8868c3f9699f3e063f96aed4bb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:34:30.166691Z","signature_b64":"RljgiyoT6AZ0Ge3k3VpJwApTrLbVFjdV91NUrWlcflI4UJEkLuY98m5uBhmsMzPMyEOI/yDMgG91e5VndPwrAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3a72fd3a07a9d0f3f2c0f8ba3863fc88d6f45d8868c3f9699f3e063f96aed4bb","last_reissued_at":"2026-05-18T02:34:30.165119Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:34:30.165119Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0909.2567","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":"2026-05-18T02:34:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0bey5bKkovmuZqXNnTev1EA40QINnDaxjRhidJByKP6zd07/IQLaHpPEDGZv7QNbdpnWPZheSbwb8T6Kp9RSBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T09:31:42.782050Z"},"content_sha256":"e6a4249d4efbb3f85881e2515dde3b8cd7266f1617401b9ff1b06c5779cd21fa","schema_version":"1.0","event_id":"sha256:e6a4249d4efbb3f85881e2515dde3b8cd7266f1617401b9ff1b06c5779cd21fa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:HJZP2OQHVHIPH4WA7C5DQY74RD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"X-ray emission from black-hole binaries","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Germany, M. Gilfanov (MPA Garching, Moscow, Russia), Space Research Institute","submitted_at":"2009-09-14T15:10:04Z","abstract_excerpt":"The properties of X-ray emission from accreting black holes are reviewed. The contemporary observational picture and current status of theoretical understanding of accretion and formation of X-ray radiation in the vicinity of the compact object are equally in the focus of this chapter. The emphasis is made primarily on common properties and trends rather than on peculiarities of individual objects and details of particular theoretical models. The chapter starts with discussion of the geometry of the accretion flow, spectral components in X-ray emission and black hole spectral states. The prosp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.2567","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":"2026-05-18T02:34:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uEZhvrzJxtAQcsUTwAuq6bl4hSnnCb6VwjzFxpjeQ46HpSln9Xnle7iqg2cnrP/zVbcp5kXHGeJbxgphhBaXAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T09:31:42.782655Z"},"content_sha256":"8fb2cd8ab4e305a158a3c10a803db2ae92f0e20136e053b3c70002926e3b748a","schema_version":"1.0","event_id":"sha256:8fb2cd8ab4e305a158a3c10a803db2ae92f0e20136e053b3c70002926e3b748a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HJZP2OQHVHIPH4WA7C5DQY74RD/bundle.json","state_url":"https://pith.science/pith/HJZP2OQHVHIPH4WA7C5DQY74RD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HJZP2OQHVHIPH4WA7C5DQY74RD/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":"2026-06-22T09:31:42Z","links":{"resolver":"https://pith.science/pith/HJZP2OQHVHIPH4WA7C5DQY74RD","bundle":"https://pith.science/pith/HJZP2OQHVHIPH4WA7C5DQY74RD/bundle.json","state":"https://pith.science/pith/HJZP2OQHVHIPH4WA7C5DQY74RD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HJZP2OQHVHIPH4WA7C5DQY74RD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:HJZP2OQHVHIPH4WA7C5DQY74RD","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":"95a72b396e172243a9bb90032b845dd1782483e6a79e8a71cfda2ce5f4f7e57e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-14T15:10:04Z","title_canon_sha256":"11e193440eafd8969c2151a3f9c8436269964fa5f946a7a00a2e68e05066d956"},"schema_version":"1.0","source":{"id":"0909.2567","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.2567","created_at":"2026-05-18T02:34:30Z"},{"alias_kind":"arxiv_version","alias_value":"0909.2567v1","created_at":"2026-05-18T02:34:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.2567","created_at":"2026-05-18T02:34:30Z"},{"alias_kind":"pith_short_12","alias_value":"HJZP2OQHVHIP","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"HJZP2OQHVHIPH4WA","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"HJZP2OQH","created_at":"2026-05-18T12:25:59Z"}],"graph_snapshots":[{"event_id":"sha256:8fb2cd8ab4e305a158a3c10a803db2ae92f0e20136e053b3c70002926e3b748a","target":"graph","created_at":"2026-05-18T02:34:30Z","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":"The properties of X-ray emission from accreting black holes are reviewed. The contemporary observational picture and current status of theoretical understanding of accretion and formation of X-ray radiation in the vicinity of the compact object are equally in the focus of this chapter. The emphasis is made primarily on common properties and trends rather than on peculiarities of individual objects and details of particular theoretical models. The chapter starts with discussion of the geometry of the accretion flow, spectral components in X-ray emission and black hole spectral states. The prosp","authors_text":"Germany, M. Gilfanov (MPA Garching, Moscow, Russia), Space Research Institute","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-14T15:10:04Z","title":"X-ray emission from black-hole binaries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.2567","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:e6a4249d4efbb3f85881e2515dde3b8cd7266f1617401b9ff1b06c5779cd21fa","target":"record","created_at":"2026-05-18T02:34:30Z","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":"95a72b396e172243a9bb90032b845dd1782483e6a79e8a71cfda2ce5f4f7e57e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-14T15:10:04Z","title_canon_sha256":"11e193440eafd8969c2151a3f9c8436269964fa5f946a7a00a2e68e05066d956"},"schema_version":"1.0","source":{"id":"0909.2567","kind":"arxiv","version":1}},"canonical_sha256":"3a72fd3a07a9d0f3f2c0f8ba3863fc88d6f45d8868c3f9699f3e063f96aed4bb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3a72fd3a07a9d0f3f2c0f8ba3863fc88d6f45d8868c3f9699f3e063f96aed4bb","first_computed_at":"2026-05-18T02:34:30.165119Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:34:30.165119Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RljgiyoT6AZ0Ge3k3VpJwApTrLbVFjdV91NUrWlcflI4UJEkLuY98m5uBhmsMzPMyEOI/yDMgG91e5VndPwrAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:34:30.166691Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.2567","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e6a4249d4efbb3f85881e2515dde3b8cd7266f1617401b9ff1b06c5779cd21fa","sha256:8fb2cd8ab4e305a158a3c10a803db2ae92f0e20136e053b3c70002926e3b748a"],"state_sha256":"0e7c13e1b1937cde4f1637537910f05f4147cf0afc9a1552a5e1bc44d7fb2f07"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iQVS/+R3VApiTbSqY4PnnDR+vNqJNSTx0vwsMzK2WtP0Au25lI+3LFpsHAd0GghiXAAWw4lbN8tVPtbgSNgWAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T09:31:42.785228Z","bundle_sha256":"1085302f82fd137b5b3b1bf097acc1abcec915c4662d33513bf203f8341f3295"}}