{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:EMHY637HJDKGG2ELEZDBD775WG","short_pith_number":"pith:EMHY637H","canonical_record":{"source":{"id":"1609.01059","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-05T08:39:26Z","cross_cats_sorted":[],"title_canon_sha256":"4e5bb5f4797363279f793d7e8ae2f36bb84af65947616fb14bee7e552dcbc1ee","abstract_canon_sha256":"731c4c98a0dc40d5661dc87648cd1d3b7741036f3236e40a712abf9d7abb0125"},"schema_version":"1.0"},"canonical_sha256":"230f8f6fe748d463688b264611fffdb19943c3bd27a50a3d71b96bdea80c5899","source":{"kind":"arxiv","id":"1609.01059","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.01059","created_at":"2026-05-17T23:51:39Z"},{"alias_kind":"arxiv_version","alias_value":"1609.01059v1","created_at":"2026-05-17T23:51:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.01059","created_at":"2026-05-17T23:51:39Z"},{"alias_kind":"pith_short_12","alias_value":"EMHY637HJDKG","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"EMHY637HJDKGG2EL","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"EMHY637H","created_at":"2026-05-18T12:30:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:EMHY637HJDKGG2ELEZDBD775WG","target":"record","payload":{"canonical_record":{"source":{"id":"1609.01059","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-05T08:39:26Z","cross_cats_sorted":[],"title_canon_sha256":"4e5bb5f4797363279f793d7e8ae2f36bb84af65947616fb14bee7e552dcbc1ee","abstract_canon_sha256":"731c4c98a0dc40d5661dc87648cd1d3b7741036f3236e40a712abf9d7abb0125"},"schema_version":"1.0"},"canonical_sha256":"230f8f6fe748d463688b264611fffdb19943c3bd27a50a3d71b96bdea80c5899","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:39.947869Z","signature_b64":"eIcfkVbIT/pXuAGsQIcQ3JC15uex1VFwTTHYRLJD3QsJ5sYzRthSz9QMqK6ere8FFaGBBKR4VLU+ef+aob/SCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"230f8f6fe748d463688b264611fffdb19943c3bd27a50a3d71b96bdea80c5899","last_reissued_at":"2026-05-17T23:51:39.947147Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:39.947147Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1609.01059","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":"2026-05-17T23:51:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"suRNpUyie486NxopJLsUMvf3L5EylMnYZkJC7PLp0LWt527FTrdQbfTcGXIGv7rEYMkR7oLR54wFStrMO1C5CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T08:29:34.985150Z"},"content_sha256":"967d968e63af6cbd82900ad58bec197a3328dc780dd42dd70990849f72cc781f","schema_version":"1.0","event_id":"sha256:967d968e63af6cbd82900ad58bec197a3328dc780dd42dd70990849f72cc781f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:EMHY637HJDKGG2ELEZDBD775WG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hydrodynamic Modeling of Accretion Impacts in Classical T Tauri Stars: Radiative Heating of the Pre-shock Plasma","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"C. Argiroffi, G. Costa, G. Peres, R.Bonito, S. Orlando","submitted_at":"2016-09-05T08:39:26Z","abstract_excerpt":"Context. It is generally accepted that, in Classical T Tauri Stars, the plasma from the circumstellar disc accretes onto the stellar surface with free fall velocity, and the impact generates a shock. The impact region is expected to contribute to emission in different spectral bands; many studies have confirmed that the X-rays arise from the post-shock plasma but, otherwise, there are no studies in the literature investigating the origin of the observed UV emission which is apparently correlated to accretion. Aims. We investigated the effect of radiative heating of the infalling material by th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.01059","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":"2026-05-17T23:51:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DL4Hy+825+xOVDn01GzgR9MQZeLXKKGvcKjPRpO9XAuJV8Uqwx1Shhjqp8NOChprPJj51K0osNebOja9nmOFDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T08:29:34.985917Z"},"content_sha256":"51504a9dc23a1a5d97dc91a2d8d9eab96b2fec4b20f72b0ead12862197acf1a8","schema_version":"1.0","event_id":"sha256:51504a9dc23a1a5d97dc91a2d8d9eab96b2fec4b20f72b0ead12862197acf1a8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EMHY637HJDKGG2ELEZDBD775WG/bundle.json","state_url":"https://pith.science/pith/EMHY637HJDKGG2ELEZDBD775WG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EMHY637HJDKGG2ELEZDBD775WG/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":"2026-05-19T08:29:34Z","links":{"resolver":"https://pith.science/pith/EMHY637HJDKGG2ELEZDBD775WG","bundle":"https://pith.science/pith/EMHY637HJDKGG2ELEZDBD775WG/bundle.json","state":"https://pith.science/pith/EMHY637HJDKGG2ELEZDBD775WG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EMHY637HJDKGG2ELEZDBD775WG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:EMHY637HJDKGG2ELEZDBD775WG","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":"731c4c98a0dc40d5661dc87648cd1d3b7741036f3236e40a712abf9d7abb0125","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-05T08:39:26Z","title_canon_sha256":"4e5bb5f4797363279f793d7e8ae2f36bb84af65947616fb14bee7e552dcbc1ee"},"schema_version":"1.0","source":{"id":"1609.01059","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.01059","created_at":"2026-05-17T23:51:39Z"},{"alias_kind":"arxiv_version","alias_value":"1609.01059v1","created_at":"2026-05-17T23:51:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.01059","created_at":"2026-05-17T23:51:39Z"},{"alias_kind":"pith_short_12","alias_value":"EMHY637HJDKG","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"EMHY637HJDKGG2EL","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"EMHY637H","created_at":"2026-05-18T12:30:12Z"}],"graph_snapshots":[{"event_id":"sha256:51504a9dc23a1a5d97dc91a2d8d9eab96b2fec4b20f72b0ead12862197acf1a8","target":"graph","created_at":"2026-05-17T23:51:39Z","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":"Context. It is generally accepted that, in Classical T Tauri Stars, the plasma from the circumstellar disc accretes onto the stellar surface with free fall velocity, and the impact generates a shock. The impact region is expected to contribute to emission in different spectral bands; many studies have confirmed that the X-rays arise from the post-shock plasma but, otherwise, there are no studies in the literature investigating the origin of the observed UV emission which is apparently correlated to accretion. Aims. We investigated the effect of radiative heating of the infalling material by th","authors_text":"C. Argiroffi, G. Costa, G. Peres, R.Bonito, S. Orlando","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-05T08:39:26Z","title":"Hydrodynamic Modeling of Accretion Impacts in Classical T Tauri Stars: Radiative Heating of the Pre-shock Plasma"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.01059","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":"sha256:967d968e63af6cbd82900ad58bec197a3328dc780dd42dd70990849f72cc781f","target":"record","created_at":"2026-05-17T23:51:39Z","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":"731c4c98a0dc40d5661dc87648cd1d3b7741036f3236e40a712abf9d7abb0125","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-05T08:39:26Z","title_canon_sha256":"4e5bb5f4797363279f793d7e8ae2f36bb84af65947616fb14bee7e552dcbc1ee"},"schema_version":"1.0","source":{"id":"1609.01059","kind":"arxiv","version":1}},"canonical_sha256":"230f8f6fe748d463688b264611fffdb19943c3bd27a50a3d71b96bdea80c5899","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"230f8f6fe748d463688b264611fffdb19943c3bd27a50a3d71b96bdea80c5899","first_computed_at":"2026-05-17T23:51:39.947147Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:51:39.947147Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eIcfkVbIT/pXuAGsQIcQ3JC15uex1VFwTTHYRLJD3QsJ5sYzRthSz9QMqK6ere8FFaGBBKR4VLU+ef+aob/SCg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:51:39.947869Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.01059","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:967d968e63af6cbd82900ad58bec197a3328dc780dd42dd70990849f72cc781f","sha256:51504a9dc23a1a5d97dc91a2d8d9eab96b2fec4b20f72b0ead12862197acf1a8"],"state_sha256":"c7416b54fa704a5ecdaf1c2912c75da44a4cdbac700f8f5309136ee04d8bdc48"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nsyick5U+eoHCtHbmn/Ir1DoixnZD+QMNXevFrohaS1AG/1oGJwbpDtJD8SOdBsejg9mNhRp66KXkxEVWgTGBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T08:29:34.989159Z","bundle_sha256":"0291b1efa707df58907e88c4410a0376b35890d0fbc230c75b922c2cf6d8d0dd"}}