{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:MTJ2HJWHT3UZNRTL3Q72NHEKZX","short_pith_number":"pith:MTJ2HJWH","canonical_record":{"source":{"id":"0909.5513","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-30T05:41:44Z","cross_cats_sorted":[],"title_canon_sha256":"e6fabab8adf0ffff7768f259ea1300a83678b392c313646dc02c00f43f823e25","abstract_canon_sha256":"d76709583fa6e8793f76869e34c426bc93f7dca1ecc8b5f12683fbe31b3f1aba"},"schema_version":"1.0"},"canonical_sha256":"64d3a3a6c79ee996c66bdc3fa69c8acdd58452fc1a565e4773bcc800f2dc5158","source":{"kind":"arxiv","id":"0909.5513","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.5513","created_at":"2026-05-18T02:11:36Z"},{"alias_kind":"arxiv_version","alias_value":"0909.5513v1","created_at":"2026-05-18T02:11:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.5513","created_at":"2026-05-18T02:11:36Z"},{"alias_kind":"pith_short_12","alias_value":"MTJ2HJWHT3UZ","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"MTJ2HJWHT3UZNRTL","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"MTJ2HJWH","created_at":"2026-05-18T12:26:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:MTJ2HJWHT3UZNRTL3Q72NHEKZX","target":"record","payload":{"canonical_record":{"source":{"id":"0909.5513","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-30T05:41:44Z","cross_cats_sorted":[],"title_canon_sha256":"e6fabab8adf0ffff7768f259ea1300a83678b392c313646dc02c00f43f823e25","abstract_canon_sha256":"d76709583fa6e8793f76869e34c426bc93f7dca1ecc8b5f12683fbe31b3f1aba"},"schema_version":"1.0"},"canonical_sha256":"64d3a3a6c79ee996c66bdc3fa69c8acdd58452fc1a565e4773bcc800f2dc5158","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:11:36.147586Z","signature_b64":"h5oTQntgvlF+bH5qAfoHUbbvKrc+B7+rxt/ZXjiKJM+s/tOdxQBuYo3tUs5YH+xC4aNEW74v/XRhp8t82kZaAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"64d3a3a6c79ee996c66bdc3fa69c8acdd58452fc1a565e4773bcc800f2dc5158","last_reissued_at":"2026-05-18T02:11:36.146819Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:11:36.146819Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0909.5513","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":"2026-05-18T02:11:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oYzuoKO75J2zTIZ83uy3MzdY0vMz/qtz0GGR3s6XAfr0RhI2yV/f7pCd+se7TYKC+Dl4nA0k9pLmha5pjfCADw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T05:07:06.186259Z"},"content_sha256":"7d5cfe360f6137eb51b854902921d0249d3995280222fc471e8b0c6273f34fee","schema_version":"1.0","event_id":"sha256:7d5cfe360f6137eb51b854902921d0249d3995280222fc471e8b0c6273f34fee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:MTJ2HJWHT3UZNRTL3Q72NHEKZX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Studies of dissipative standing shock waves around black holes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Sandip K. Chakrabarti, Santabrata Das, Soumen Mondal","submitted_at":"2009-09-30T05:41:44Z","abstract_excerpt":"We investigate the dynamical structure of advective accretion flow around stationary as well as rotating black holes. For a suitable choice of input parameters, such as, accretion rate ($\\dot {\\cal M}$) and angular momentum ($\\lambda$), global accretion solution may include a shock wave. The post shock flow is located at few tens of Schwarzchild radius and it is generally very hot and dense. This successfully mimics the so called Compton cloud which is believed to be responsible for emitting hard radiations. Due to the radiative loss, a significant energy from the accreting matter is removed a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.5513","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":"2026-05-18T02:11:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gnG/zfGJ/EyyCZ45D86CI7sjrH23vfTmKUibcDougNcIE9zilB4nKF+lLPc/K4w9TsKtHdRrIP49ABzhK91YCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T05:07:06.186960Z"},"content_sha256":"0c6ca9a09c91f318c47561bb438bf6e0053f4de955c9d06766c0429a6abdb108","schema_version":"1.0","event_id":"sha256:0c6ca9a09c91f318c47561bb438bf6e0053f4de955c9d06766c0429a6abdb108"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MTJ2HJWHT3UZNRTL3Q72NHEKZX/bundle.json","state_url":"https://pith.science/pith/MTJ2HJWHT3UZNRTL3Q72NHEKZX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MTJ2HJWHT3UZNRTL3Q72NHEKZX/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":"2026-05-26T05:07:06Z","links":{"resolver":"https://pith.science/pith/MTJ2HJWHT3UZNRTL3Q72NHEKZX","bundle":"https://pith.science/pith/MTJ2HJWHT3UZNRTL3Q72NHEKZX/bundle.json","state":"https://pith.science/pith/MTJ2HJWHT3UZNRTL3Q72NHEKZX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MTJ2HJWHT3UZNRTL3Q72NHEKZX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:MTJ2HJWHT3UZNRTL3Q72NHEKZX","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":"d76709583fa6e8793f76869e34c426bc93f7dca1ecc8b5f12683fbe31b3f1aba","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-30T05:41:44Z","title_canon_sha256":"e6fabab8adf0ffff7768f259ea1300a83678b392c313646dc02c00f43f823e25"},"schema_version":"1.0","source":{"id":"0909.5513","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.5513","created_at":"2026-05-18T02:11:36Z"},{"alias_kind":"arxiv_version","alias_value":"0909.5513v1","created_at":"2026-05-18T02:11:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.5513","created_at":"2026-05-18T02:11:36Z"},{"alias_kind":"pith_short_12","alias_value":"MTJ2HJWHT3UZ","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"MTJ2HJWHT3UZNRTL","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"MTJ2HJWH","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:0c6ca9a09c91f318c47561bb438bf6e0053f4de955c9d06766c0429a6abdb108","target":"graph","created_at":"2026-05-18T02:11:36Z","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":"We investigate the dynamical structure of advective accretion flow around stationary as well as rotating black holes. For a suitable choice of input parameters, such as, accretion rate ($\\dot {\\cal M}$) and angular momentum ($\\lambda$), global accretion solution may include a shock wave. The post shock flow is located at few tens of Schwarzchild radius and it is generally very hot and dense. This successfully mimics the so called Compton cloud which is believed to be responsible for emitting hard radiations. Due to the radiative loss, a significant energy from the accreting matter is removed a","authors_text":"Sandip K. Chakrabarti, Santabrata Das, Soumen Mondal","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-30T05:41:44Z","title":"Studies of dissipative standing shock waves around black holes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.5513","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":"sha256:7d5cfe360f6137eb51b854902921d0249d3995280222fc471e8b0c6273f34fee","target":"record","created_at":"2026-05-18T02:11:36Z","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":"d76709583fa6e8793f76869e34c426bc93f7dca1ecc8b5f12683fbe31b3f1aba","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-09-30T05:41:44Z","title_canon_sha256":"e6fabab8adf0ffff7768f259ea1300a83678b392c313646dc02c00f43f823e25"},"schema_version":"1.0","source":{"id":"0909.5513","kind":"arxiv","version":1}},"canonical_sha256":"64d3a3a6c79ee996c66bdc3fa69c8acdd58452fc1a565e4773bcc800f2dc5158","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"64d3a3a6c79ee996c66bdc3fa69c8acdd58452fc1a565e4773bcc800f2dc5158","first_computed_at":"2026-05-18T02:11:36.146819Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:11:36.146819Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"h5oTQntgvlF+bH5qAfoHUbbvKrc+B7+rxt/ZXjiKJM+s/tOdxQBuYo3tUs5YH+xC4aNEW74v/XRhp8t82kZaAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:11:36.147586Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.5513","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7d5cfe360f6137eb51b854902921d0249d3995280222fc471e8b0c6273f34fee","sha256:0c6ca9a09c91f318c47561bb438bf6e0053f4de955c9d06766c0429a6abdb108"],"state_sha256":"46eae677e9baff4b7ec617f56d96db9492c03b668fd95f627a6831c96b388bbe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2JAxu1l9vMJtShHoJKoubWhY3ZYADGUlxs922w7U33mj3ChwtPh6NTVZsDMFDnms+AZNrTej85nlxX5GealIBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T05:07:06.190639Z","bundle_sha256":"35d6c632520b4116b8515eced11605c28c3474a05ab0e137cb7a51007ce114f6"}}