{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:GVT5QIMAUWL5AEQJM3DTHJEHAY","short_pith_number":"pith:GVT5QIMA","canonical_record":{"source":{"id":"1602.08196","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-02-26T05:08:48Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"9fb5c8ea70b54408f24a743681cbbb1cad888670cbee9265378d7809107ecd66","abstract_canon_sha256":"b8a79bc700afd84886d302ec72eacb6360f9133210d200c6fb1dca9c6d6b5891"},"schema_version":"1.0"},"canonical_sha256":"3567d82180a597d0120966c733a487062bc5086a9d00c0fc0e1c62acd8a297ec","source":{"kind":"arxiv","id":"1602.08196","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.08196","created_at":"2026-05-18T01:13:17Z"},{"alias_kind":"arxiv_version","alias_value":"1602.08196v2","created_at":"2026-05-18T01:13:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.08196","created_at":"2026-05-18T01:13:17Z"},{"alias_kind":"pith_short_12","alias_value":"GVT5QIMAUWL5","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_16","alias_value":"GVT5QIMAUWL5AEQJ","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_8","alias_value":"GVT5QIMA","created_at":"2026-05-18T12:30:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:GVT5QIMAUWL5AEQJM3DTHJEHAY","target":"record","payload":{"canonical_record":{"source":{"id":"1602.08196","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-02-26T05:08:48Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"9fb5c8ea70b54408f24a743681cbbb1cad888670cbee9265378d7809107ecd66","abstract_canon_sha256":"b8a79bc700afd84886d302ec72eacb6360f9133210d200c6fb1dca9c6d6b5891"},"schema_version":"1.0"},"canonical_sha256":"3567d82180a597d0120966c733a487062bc5086a9d00c0fc0e1c62acd8a297ec","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:13:17.502692Z","signature_b64":"nYkPxQ3CsIgaw9rjScRLFiJBcGjISLaZMdeIluZF0T6VCs1tVByqjy6Bbzj5NZSuEDlPlwUlow08VsvOOzBLAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3567d82180a597d0120966c733a487062bc5086a9d00c0fc0e1c62acd8a297ec","last_reissued_at":"2026-05-18T01:13:17.502158Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:13:17.502158Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.08196","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:13:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aRpwqYd2aNk58sFw2djUd+LUdF/ROT53YtUpwopXBGIB0PuAx5hu/1Af3Xp8RUHyHeY9o+kfs5m8vGX5Dl4mDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T09:48:00.344071Z"},"content_sha256":"135b386b7f273e30ad2c8dcca2251370edf2a29910a34347105614f5addb784b","schema_version":"1.0","event_id":"sha256:135b386b7f273e30ad2c8dcca2251370edf2a29910a34347105614f5addb784b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:GVT5QIMAUWL5AEQJM3DTHJEHAY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Disk Polarization From Both Emission and Scattering of Magnetically Aligned Grains: The Case of NGC 1333 IRAS4A1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Dominque M. Segura-Cox, Erin G. Cox, Haifeng Yang, Ian W. Stephens, John Tobin, Leslie W. Looney, Robert J. Harris, Zhi-Yun Li","submitted_at":"2016-02-26T05:08:48Z","abstract_excerpt":"Dust polarization in millimeter (and centimeter) has been mapped in disks around an increasing number of young stellar objects. It is usually thought to come from emission by magnetically aligned (non-spherical) grains, but can also be produced by dust scattering. We present a semi-analytic theory of disk polarization that includes both the direction emission and scattering, with an emphasis on their relative importance and how they are affected by the disk inclination. For face-on disks, both emission and scattering tend to produce polarization in the radial direction, making them difficult t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.08196","kind":"arxiv","version":2},"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":"2026-05-18T01:13:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4qCDYjaWLGP+3Tevu7QfLCJQ4seItNPNSNf49YpE+Kg7OEP54SJrrbBXEiqr7shHQly1mKaZDMZmFG2+J8huBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T09:48:00.344690Z"},"content_sha256":"bf933b45daaf7cefa21838166c487ece5fd7c826adbb00a42b76535901814ff0","schema_version":"1.0","event_id":"sha256:bf933b45daaf7cefa21838166c487ece5fd7c826adbb00a42b76535901814ff0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GVT5QIMAUWL5AEQJM3DTHJEHAY/bundle.json","state_url":"https://pith.science/pith/GVT5QIMAUWL5AEQJM3DTHJEHAY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GVT5QIMAUWL5AEQJM3DTHJEHAY/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":"2026-05-25T09:48:00Z","links":{"resolver":"https://pith.science/pith/GVT5QIMAUWL5AEQJM3DTHJEHAY","bundle":"https://pith.science/pith/GVT5QIMAUWL5AEQJM3DTHJEHAY/bundle.json","state":"https://pith.science/pith/GVT5QIMAUWL5AEQJM3DTHJEHAY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GVT5QIMAUWL5AEQJM3DTHJEHAY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:GVT5QIMAUWL5AEQJM3DTHJEHAY","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":"b8a79bc700afd84886d302ec72eacb6360f9133210d200c6fb1dca9c6d6b5891","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-02-26T05:08:48Z","title_canon_sha256":"9fb5c8ea70b54408f24a743681cbbb1cad888670cbee9265378d7809107ecd66"},"schema_version":"1.0","source":{"id":"1602.08196","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.08196","created_at":"2026-05-18T01:13:17Z"},{"alias_kind":"arxiv_version","alias_value":"1602.08196v2","created_at":"2026-05-18T01:13:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.08196","created_at":"2026-05-18T01:13:17Z"},{"alias_kind":"pith_short_12","alias_value":"GVT5QIMAUWL5","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_16","alias_value":"GVT5QIMAUWL5AEQJ","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_8","alias_value":"GVT5QIMA","created_at":"2026-05-18T12:30:19Z"}],"graph_snapshots":[{"event_id":"sha256:bf933b45daaf7cefa21838166c487ece5fd7c826adbb00a42b76535901814ff0","target":"graph","created_at":"2026-05-18T01:13:17Z","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":"Dust polarization in millimeter (and centimeter) has been mapped in disks around an increasing number of young stellar objects. It is usually thought to come from emission by magnetically aligned (non-spherical) grains, but can also be produced by dust scattering. We present a semi-analytic theory of disk polarization that includes both the direction emission and scattering, with an emphasis on their relative importance and how they are affected by the disk inclination. For face-on disks, both emission and scattering tend to produce polarization in the radial direction, making them difficult t","authors_text":"Dominque M. Segura-Cox, Erin G. Cox, Haifeng Yang, Ian W. Stephens, John Tobin, Leslie W. Looney, Robert J. Harris, Zhi-Yun Li","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-02-26T05:08:48Z","title":"Disk Polarization From Both Emission and Scattering of Magnetically Aligned Grains: The Case of NGC 1333 IRAS4A1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.08196","kind":"arxiv","version":2},"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":"sha256:135b386b7f273e30ad2c8dcca2251370edf2a29910a34347105614f5addb784b","target":"record","created_at":"2026-05-18T01:13:17Z","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":"b8a79bc700afd84886d302ec72eacb6360f9133210d200c6fb1dca9c6d6b5891","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-02-26T05:08:48Z","title_canon_sha256":"9fb5c8ea70b54408f24a743681cbbb1cad888670cbee9265378d7809107ecd66"},"schema_version":"1.0","source":{"id":"1602.08196","kind":"arxiv","version":2}},"canonical_sha256":"3567d82180a597d0120966c733a487062bc5086a9d00c0fc0e1c62acd8a297ec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3567d82180a597d0120966c733a487062bc5086a9d00c0fc0e1c62acd8a297ec","first_computed_at":"2026-05-18T01:13:17.502158Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:13:17.502158Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nYkPxQ3CsIgaw9rjScRLFiJBcGjISLaZMdeIluZF0T6VCs1tVByqjy6Bbzj5NZSuEDlPlwUlow08VsvOOzBLAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:13:17.502692Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.08196","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:135b386b7f273e30ad2c8dcca2251370edf2a29910a34347105614f5addb784b","sha256:bf933b45daaf7cefa21838166c487ece5fd7c826adbb00a42b76535901814ff0"],"state_sha256":"b9ca8a90c967b0a0dc13a8539d60dd6344e03b19b6e5db583431c4412014f9a2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+b5MYcR/70biUIHT/D06uqB1yiMgTWryQ2Cz6bDwQzqdfOSrB7t+gUzAhgfWmRCHxLyRDLPxRsafPUO5w0pMCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T09:48:00.348054Z","bundle_sha256":"53708e71b6d9618d0f5daaf1489742b4a805aad59eb0ceea64d0fb9df90f94c4"}}