{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:4UNGYQ7HYRHZGBQH4GMZAPRLMU","short_pith_number":"pith:4UNGYQ7H","canonical_record":{"source":{"id":"2608.09340","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-08-10T09:20:47Z","cross_cats_sorted":["astro-ph.GA","astro-ph.SR"],"title_canon_sha256":"9e9a8e417c2f0a9d786e113b6d0f200b8dc5b82b18fda5f0fe7c72829a272fe1","abstract_canon_sha256":"e1d6d3c514eead2efc6e78e7599847e31ce147772162846934c7512d41ac2fb1"},"schema_version":"1.0"},"canonical_sha256":"e51a6c43e7c44f930607e199903e2b651fd830f16e434e7c9e775419f4c9dd20","source":{"kind":"arxiv","id":"2608.09340","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.09340","created_at":"2026-08-11T02:22:22Z"},{"alias_kind":"arxiv_version","alias_value":"2608.09340v1","created_at":"2026-08-11T02:22:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.09340","created_at":"2026-08-11T02:22:22Z"},{"alias_kind":"pith_short_12","alias_value":"4UNGYQ7HYRHZ","created_at":"2026-08-11T02:22:22Z"},{"alias_kind":"pith_short_16","alias_value":"4UNGYQ7HYRHZGBQH","created_at":"2026-08-11T02:22:22Z"},{"alias_kind":"pith_short_8","alias_value":"4UNGYQ7H","created_at":"2026-08-11T02:22:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:4UNGYQ7HYRHZGBQH4GMZAPRLMU","target":"record","payload":{"canonical_record":{"source":{"id":"2608.09340","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-08-10T09:20:47Z","cross_cats_sorted":["astro-ph.GA","astro-ph.SR"],"title_canon_sha256":"9e9a8e417c2f0a9d786e113b6d0f200b8dc5b82b18fda5f0fe7c72829a272fe1","abstract_canon_sha256":"e1d6d3c514eead2efc6e78e7599847e31ce147772162846934c7512d41ac2fb1"},"schema_version":"1.0"},"canonical_sha256":"e51a6c43e7c44f930607e199903e2b651fd830f16e434e7c9e775419f4c9dd20","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-11T02:22:22.597207Z","signature_b64":"4QxldKR3m13znBtlGiJTBQlwTbYnXsiiAiVSPnIiu7v6Ub3KGHMId/J1iifOx0C55KSx+WSngvyiNjgctz7yCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e51a6c43e7c44f930607e199903e2b651fd830f16e434e7c9e775419f4c9dd20","last_reissued_at":"2026-08-11T02:22:22.595453Z","signature_status":"signed_v1","first_computed_at":"2026-08-11T02:22:22.595453Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.09340","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":"2026-08-11T02:22:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/dQ8Xn99GhjjPNftu2dI47ibQQvXsUj7p2nPzUVrB/ekZZHlJ6/hrjQiJOBvn77OkuyZ9TlAloi00PlPVH6WCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T03:24:17.120643Z"},"content_sha256":"a8a20e00c2e87caea242705c19508ef900600d182e190fbf0da6628c8c7593a0","schema_version":"1.0","event_id":"sha256:a8a20e00c2e87caea242705c19508ef900600d182e190fbf0da6628c8c7593a0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:4UNGYQ7HYRHZGBQH4GMZAPRLMU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Kratos-linerad: GPU-accelerated Monte Carlo radiative transfer of lines with efficient imaging","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.SR"],"primary_cat":"astro-ph.IM","authors_text":"Lile Wang","submitted_at":"2026-08-10T09:20:47Z","abstract_excerpt":"Spectral lines encode the velocity, the temperature, and the chemical structure of astrophysical gas; interpreting them requires radiative transfer that is accurate at high optical depth, consistent with the local excitation, and efficient enough to synthesize velocity-resolved images. We present Kratos-linerad, a GPU-accelerated Monte Carlo radiative transfer code for spectral lines. The level populations can be iterated to statistical equilibrium together with the escaping photon distribution, treating angle-dependent partial frequency redistribution through constant-memory sampling tables. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.09340","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/2608.09340/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":"2026-08-11T02:22:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pIHvKME6BDeutQ9Mb4HBDoxETdEJw0+AlfNlAzXbLjBR15S7GMuRXJW88nmO2ZVnHSy/+qWgIPJ7x05LfHzOCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T03:24:17.121200Z"},"content_sha256":"1988697df384e3b3151088780e358f1fb722744443abe7a28b794e9abde54528","schema_version":"1.0","event_id":"sha256:1988697df384e3b3151088780e358f1fb722744443abe7a28b794e9abde54528"},{"event_type":"integrity_finding","subject_pith_number":"pith:2026:4UNGYQ7HYRHZGBQH4GMZAPRLMU","target":"integrity","payload":{"note":"Identifier '10.1093/mnras/161.1.43' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.","snippet":"Harrington, J. P. 1973, MNRAS, 161, 43, doi: 10.1093/mnras/161.1.43","arxiv_id":"2608.09340","detector":"doi_compliance","evidence":{"doi":"10.1093/mnras/161.1.43","arxiv_id":null,"ref_index":9,"raw_excerpt":"Harrington, J. P. 1973, MNRAS, 161, 43, doi: 10.1093/mnras/161.1.43","parse_status":"well_formed","verdict_class":"cross_source","checked_sources":["crossref_by_doi","openalex_by_doi","doi_org_head"],"resolution_status":"hard_miss"},"severity":"critical","ref_index":9,"audited_at":"2026-08-11T19:18:15.010326Z","event_type":"pith.integrity.v1","detected_doi":"10.1093/mnras/161.1.43","detector_url":"https://pith.science/pith-integrity-protocol#doi_compliance","external_url":null,"finding_type":"unresolvable_identifier","evidence_hash":"48bad490db8106343fb4586db627c26d50e5be58cd5cb156599146eba13f847c","paper_version":1,"verdict_class":"cross_source","resolved_title":null,"detector_version":"1.1.0","detected_arxiv_id":null,"integrity_event_id":19096,"payload_sha256":"1ae879398b3c945ea4b15b33cfa5e9419b188a6f2875f42b50e283320a59fdf6","signature_b64":"ULURy8TC8w/ZXELS+52m/SfPfX8fEV83jW8dy+r7pV7KIl1nF6QEa8mJTctgwE2xi1xJzRpLXaNu2vyGSbu5Dw==","signing_key_id":"pith-v1-2026-05"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-08-11T19:18:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EpPyJ7zvq1D+iigFZgnOduJLkw0+yb4GCF6VBid2AnkOYc/9KSOic/W2EfTKvo04P+T5Gsd5/ojJDJCIu6LuCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T03:24:17.125766Z"},"content_sha256":"0ee95a7aa9ae626a210de822e416c202bb496fadc30f1a488f2c39ed8f1bda85","schema_version":"1.0","event_id":"sha256:0ee95a7aa9ae626a210de822e416c202bb496fadc30f1a488f2c39ed8f1bda85"},{"event_type":"integrity_finding","subject_pith_number":"pith:2026:4UNGYQ7HYRHZGBQH4GMZAPRLMU","target":"integrity","payload":{"note":"Identifier '10.1088/2041-8205/759/2/l12' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.","snippet":"Dullemond, C. P., Juhász, A., Pohl, A., et al. 2012, ApJ, 759, L12, doi: 10.1088/2041-8205/759/2/L12","arxiv_id":"2608.09340","detector":"doi_compliance","evidence":{"doi":"10.1088/2041-8205/759/2/l12","arxiv_id":null,"ref_index":7,"raw_excerpt":"Dullemond, C. P., Juhász, A., Pohl, A., et al. 2012, ApJ, 759, L12, doi: 10.1088/2041-8205/759/2/L12","parse_status":"well_formed","verdict_class":"cross_source","checked_sources":["crossref_by_doi","openalex_by_doi","doi_org_head"],"resolution_status":"hard_miss"},"severity":"critical","ref_index":7,"audited_at":"2026-08-11T19:18:15.010326Z","event_type":"pith.integrity.v1","detected_doi":"10.1088/2041-8205/759/2/l12","detector_url":"https://pith.science/pith-integrity-protocol#doi_compliance","external_url":null,"finding_type":"unresolvable_identifier","evidence_hash":"4f0aff8608d906edbd1898f5d1587a4a2e917f11f1d77e9482ae26b48d0c93c0","paper_version":1,"verdict_class":"cross_source","resolved_title":null,"detector_version":"1.1.0","detected_arxiv_id":null,"integrity_event_id":19095,"payload_sha256":"7b83302ee873535d77a29e1bb425504e58b6fd21d224ab8c309199722e3425e6","signature_b64":"6V3otQ7kqxI79b+4fb55f5zH4JJq1dJwSAu3m6yWgJcuJPIr/KMNzFgIMMUvcjIsp23kD3/q1tviWugQqonxCw==","signing_key_id":"pith-v1-2026-05"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-08-11T19:18:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jCXSFtAsQkHv2Zgln6cMSihR5dkh5G81r/jEpNY3wmEPUE/FHASmOp7nRe/O1GYu+4G3UQV3CCK6OOnPigUNCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T03:24:17.126194Z"},"content_sha256":"fc2f2859812bd22ff1c1b90d94c227b752dea26d31cd182c190fa239084a7793","schema_version":"1.0","event_id":"sha256:fc2f2859812bd22ff1c1b90d94c227b752dea26d31cd182c190fa239084a7793"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4UNGYQ7HYRHZGBQH4GMZAPRLMU/bundle.json","state_url":"https://pith.science/pith/4UNGYQ7HYRHZGBQH4GMZAPRLMU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4UNGYQ7HYRHZGBQH4GMZAPRLMU/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":"2026-08-22T03:24:17Z","links":{"resolver":"https://pith.science/pith/4UNGYQ7HYRHZGBQH4GMZAPRLMU","bundle":"https://pith.science/pith/4UNGYQ7HYRHZGBQH4GMZAPRLMU/bundle.json","state":"https://pith.science/pith/4UNGYQ7HYRHZGBQH4GMZAPRLMU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4UNGYQ7HYRHZGBQH4GMZAPRLMU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:4UNGYQ7HYRHZGBQH4GMZAPRLMU","merge_version":"pith-open-graph-merge-v1","event_count":4,"valid_event_count":4,"invalid_event_count":0,"equivocation_count":1,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"e1d6d3c514eead2efc6e78e7599847e31ce147772162846934c7512d41ac2fb1","cross_cats_sorted":["astro-ph.GA","astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-08-10T09:20:47Z","title_canon_sha256":"9e9a8e417c2f0a9d786e113b6d0f200b8dc5b82b18fda5f0fe7c72829a272fe1"},"schema_version":"1.0","source":{"id":"2608.09340","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.09340","created_at":"2026-08-11T02:22:22Z"},{"alias_kind":"arxiv_version","alias_value":"2608.09340v1","created_at":"2026-08-11T02:22:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.09340","created_at":"2026-08-11T02:22:22Z"},{"alias_kind":"pith_short_12","alias_value":"4UNGYQ7HYRHZ","created_at":"2026-08-11T02:22:22Z"},{"alias_kind":"pith_short_16","alias_value":"4UNGYQ7HYRHZGBQH","created_at":"2026-08-11T02:22:22Z"},{"alias_kind":"pith_short_8","alias_value":"4UNGYQ7H","created_at":"2026-08-11T02:22:22Z"}],"graph_snapshots":[{"event_id":"sha256:1988697df384e3b3151088780e358f1fb722744443abe7a28b794e9abde54528","target":"graph","created_at":"2026-08-11T02:22:22Z","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/2608.09340/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Spectral lines encode the velocity, the temperature, and the chemical structure of astrophysical gas; interpreting them requires radiative transfer that is accurate at high optical depth, consistent with the local excitation, and efficient enough to synthesize velocity-resolved images. We present Kratos-linerad, a GPU-accelerated Monte Carlo radiative transfer code for spectral lines. The level populations can be iterated to statistical equilibrium together with the escaping photon distribution, treating angle-dependent partial frequency redistribution through constant-memory sampling tables. ","authors_text":"Lile Wang","cross_cats":["astro-ph.GA","astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-08-10T09:20:47Z","title":"Kratos-linerad: GPU-accelerated Monte Carlo radiative transfer of lines with efficient imaging"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.09340","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:a8a20e00c2e87caea242705c19508ef900600d182e190fbf0da6628c8c7593a0","target":"record","created_at":"2026-08-11T02:22:22Z","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":"e1d6d3c514eead2efc6e78e7599847e31ce147772162846934c7512d41ac2fb1","cross_cats_sorted":["astro-ph.GA","astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2026-08-10T09:20:47Z","title_canon_sha256":"9e9a8e417c2f0a9d786e113b6d0f200b8dc5b82b18fda5f0fe7c72829a272fe1"},"schema_version":"1.0","source":{"id":"2608.09340","kind":"arxiv","version":1}},"canonical_sha256":"e51a6c43e7c44f930607e199903e2b651fd830f16e434e7c9e775419f4c9dd20","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e51a6c43e7c44f930607e199903e2b651fd830f16e434e7c9e775419f4c9dd20","first_computed_at":"2026-08-11T02:22:22.595453Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-11T02:22:22.595453Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4QxldKR3m13znBtlGiJTBQlwTbYnXsiiAiVSPnIiu7v6Ub3KGHMId/J1iifOx0C55KSx+WSngvyiNjgctz7yCQ==","signature_status":"signed_v1","signed_at":"2026-08-11T02:22:22.597207Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.09340","source_kind":"arxiv","source_version":1}}},"equivocations":[{"signer_id":"pith.science","event_type":"integrity_finding","target":"integrity","event_ids":["sha256:0ee95a7aa9ae626a210de822e416c202bb496fadc30f1a488f2c39ed8f1bda85","sha256:fc2f2859812bd22ff1c1b90d94c227b752dea26d31cd182c190fa239084a7793"]}],"invalid_events":[],"applied_event_ids":["sha256:a8a20e00c2e87caea242705c19508ef900600d182e190fbf0da6628c8c7593a0","sha256:1988697df384e3b3151088780e358f1fb722744443abe7a28b794e9abde54528"],"state_sha256":"64f31a2a60a67eac4413d37ada81a34904c0ae8db0d955b67269f8dc0a84f31f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vm/F2vsa00dYOyNXmuO6Hh+lReo0G7IW3woFxbEzNIHIHaHXV/+vzIxPD9EfF36y3NfVOnwjjRoy53ytQ8ExBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T03:24:17.128754Z","bundle_sha256":"567c0c0805da4d64ff462e95604378673fa9ebd86ab454888fd61645908ae1bf"}}