{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:IO7LFT73RP2OFG23NSWA52YDGO","short_pith_number":"pith:IO7LFT73","canonical_record":{"source":{"id":"2003.00721","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-03-02T09:09:36Z","cross_cats_sorted":[],"title_canon_sha256":"911b44968b24e74355133a087ca607d21a68bb4fd514bddc4ec85d6311c05729","abstract_canon_sha256":"f69a41b2c6da43713e72505b8796648d0a56ad9229cc39c543524f5a3aa1357c"},"schema_version":"1.0"},"canonical_sha256":"43beb2cffb8bf4e29b5b6cac0eeb0333a44c2108b6ab965531e4cad7321a3b5c","source":{"kind":"arxiv","id":"2003.00721","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.00721","created_at":"2026-07-05T00:44:49Z"},{"alias_kind":"arxiv_version","alias_value":"2003.00721v1","created_at":"2026-07-05T00:44:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.00721","created_at":"2026-07-05T00:44:49Z"},{"alias_kind":"pith_short_12","alias_value":"IO7LFT73RP2O","created_at":"2026-07-05T00:44:49Z"},{"alias_kind":"pith_short_16","alias_value":"IO7LFT73RP2OFG23","created_at":"2026-07-05T00:44:49Z"},{"alias_kind":"pith_short_8","alias_value":"IO7LFT73","created_at":"2026-07-05T00:44:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:IO7LFT73RP2OFG23NSWA52YDGO","target":"record","payload":{"canonical_record":{"source":{"id":"2003.00721","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-03-02T09:09:36Z","cross_cats_sorted":[],"title_canon_sha256":"911b44968b24e74355133a087ca607d21a68bb4fd514bddc4ec85d6311c05729","abstract_canon_sha256":"f69a41b2c6da43713e72505b8796648d0a56ad9229cc39c543524f5a3aa1357c"},"schema_version":"1.0"},"canonical_sha256":"43beb2cffb8bf4e29b5b6cac0eeb0333a44c2108b6ab965531e4cad7321a3b5c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:44:49.658169Z","signature_b64":"shEBAL7MgMLId6JlGN1RgRM7F6c8kbdp5a/M2dORmWs8MVBLMdc0Q9Etpj+RCwczkAu9jLuPCuP0PoJkn25sCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"43beb2cffb8bf4e29b5b6cac0eeb0333a44c2108b6ab965531e4cad7321a3b5c","last_reissued_at":"2026-07-05T00:44:49.657836Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:44:49.657836Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2003.00721","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":"2026-07-05T00:44:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9ve/yxk+GcS89FORcR5odNNfkrzE0M4OBQ8hLrv43llqg1BXYnAZEnk5NL9xUjlVCVKe84GwSVUxJBSZuML4Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T08:01:32.990798Z"},"content_sha256":"00c7a417588263794ced3e258c315f25d8add5508381dbce7b48d5277621553d","schema_version":"1.0","event_id":"sha256:00c7a417588263794ced3e258c315f25d8add5508381dbce7b48d5277621553d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:IO7LFT73RP2OFG23NSWA52YDGO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SKIRT 9: redesigning an advanced dust radiative transfer code to allow kinematics, line transfer and polarization by aligned dust grains","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Maarten Baes, Peter Camps","submitted_at":"2020-03-02T09:09:36Z","abstract_excerpt":"The open source SKIRT Monte Carlo radiative transfer code has been used for more than 15 years to model the interaction between radiation and dust in various astrophysical systems. In this work, we present version 9 of the code, which has been substantially redesigned to support long-term objectives. We invite interested readers to participate in the development, testing and application of new features such as including gas media types in addition to dust, performing line transfer in addition to continuum radiation transfer, and modeling polarization by non-spherical dust grains aligned by mag"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.00721","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/2003.00721/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":"2026-07-05T00:44:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vyfcNRzMuKtd/KvGj2eIrrfFf0B/kNsxdKyJJHXAAh8Z5lO3hGOSY+MfJbHRmSBFKLdnXMNIoGknqr1aRfMfCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T08:01:32.991956Z"},"content_sha256":"0ca735e2dbde14f2aa34a7a7a553f2c42a2e692edad3786d939e616eb979cc49","schema_version":"1.0","event_id":"sha256:0ca735e2dbde14f2aa34a7a7a553f2c42a2e692edad3786d939e616eb979cc49"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IO7LFT73RP2OFG23NSWA52YDGO/bundle.json","state_url":"https://pith.science/pith/IO7LFT73RP2OFG23NSWA52YDGO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IO7LFT73RP2OFG23NSWA52YDGO/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":"2026-08-22T08:01:32Z","links":{"resolver":"https://pith.science/pith/IO7LFT73RP2OFG23NSWA52YDGO","bundle":"https://pith.science/pith/IO7LFT73RP2OFG23NSWA52YDGO/bundle.json","state":"https://pith.science/pith/IO7LFT73RP2OFG23NSWA52YDGO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IO7LFT73RP2OFG23NSWA52YDGO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:IO7LFT73RP2OFG23NSWA52YDGO","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":"f69a41b2c6da43713e72505b8796648d0a56ad9229cc39c543524f5a3aa1357c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-03-02T09:09:36Z","title_canon_sha256":"911b44968b24e74355133a087ca607d21a68bb4fd514bddc4ec85d6311c05729"},"schema_version":"1.0","source":{"id":"2003.00721","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.00721","created_at":"2026-07-05T00:44:49Z"},{"alias_kind":"arxiv_version","alias_value":"2003.00721v1","created_at":"2026-07-05T00:44:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.00721","created_at":"2026-07-05T00:44:49Z"},{"alias_kind":"pith_short_12","alias_value":"IO7LFT73RP2O","created_at":"2026-07-05T00:44:49Z"},{"alias_kind":"pith_short_16","alias_value":"IO7LFT73RP2OFG23","created_at":"2026-07-05T00:44:49Z"},{"alias_kind":"pith_short_8","alias_value":"IO7LFT73","created_at":"2026-07-05T00:44:49Z"}],"graph_snapshots":[{"event_id":"sha256:0ca735e2dbde14f2aa34a7a7a553f2c42a2e692edad3786d939e616eb979cc49","target":"graph","created_at":"2026-07-05T00:44:49Z","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/2003.00721/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The open source SKIRT Monte Carlo radiative transfer code has been used for more than 15 years to model the interaction between radiation and dust in various astrophysical systems. In this work, we present version 9 of the code, which has been substantially redesigned to support long-term objectives. We invite interested readers to participate in the development, testing and application of new features such as including gas media types in addition to dust, performing line transfer in addition to continuum radiation transfer, and modeling polarization by non-spherical dust grains aligned by mag","authors_text":"Maarten Baes, Peter Camps","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-03-02T09:09:36Z","title":"SKIRT 9: redesigning an advanced dust radiative transfer code to allow kinematics, line transfer and polarization by aligned dust grains"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.00721","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":"sha256:00c7a417588263794ced3e258c315f25d8add5508381dbce7b48d5277621553d","target":"record","created_at":"2026-07-05T00:44:49Z","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":"f69a41b2c6da43713e72505b8796648d0a56ad9229cc39c543524f5a3aa1357c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-03-02T09:09:36Z","title_canon_sha256":"911b44968b24e74355133a087ca607d21a68bb4fd514bddc4ec85d6311c05729"},"schema_version":"1.0","source":{"id":"2003.00721","kind":"arxiv","version":1}},"canonical_sha256":"43beb2cffb8bf4e29b5b6cac0eeb0333a44c2108b6ab965531e4cad7321a3b5c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"43beb2cffb8bf4e29b5b6cac0eeb0333a44c2108b6ab965531e4cad7321a3b5c","first_computed_at":"2026-07-05T00:44:49.657836Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:44:49.657836Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"shEBAL7MgMLId6JlGN1RgRM7F6c8kbdp5a/M2dORmWs8MVBLMdc0Q9Etpj+RCwczkAu9jLuPCuP0PoJkn25sCg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:44:49.658169Z","signed_message":"canonical_sha256_bytes"},"source_id":"2003.00721","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:00c7a417588263794ced3e258c315f25d8add5508381dbce7b48d5277621553d","sha256:0ca735e2dbde14f2aa34a7a7a553f2c42a2e692edad3786d939e616eb979cc49"],"state_sha256":"91c50b9645cb13291d33965f5be7a7eed71822cb2b28d0bacec5fdcf624d3a67"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2hbRZnYP1EZ+hd1VDY3EuBav0cdvixLgRIekmTwnIHG3SbJe8W0wUzzl7fPnRXczsVkEw5fCTr5XIY0DfZ1oCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T08:01:32.998017Z","bundle_sha256":"cb47927d18012f59396c4dbbc960daed85c177a0cab48e23f43261c8ae408402"}}