{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:XEF5F5TCXAYCMNLKHZ35T6X2CO","short_pith_number":"pith:XEF5F5TC","canonical_record":{"source":{"id":"2503.20721","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-03-26T17:01:54Z","cross_cats_sorted":[],"title_canon_sha256":"791ff2744009cb80967c87e3408c6a8c8bf42d890ae9ef4df81a624d4e8ebbd9","abstract_canon_sha256":"d4a329f887456a05f687fd34e0fd5880ef9a32d4c67a924c76f694bec1e67fbe"},"schema_version":"1.0"},"canonical_sha256":"b90bd2f662b83026356a3e77d9fafa138b0e335cd90a5d0a62ab8922a5f85da1","source":{"kind":"arxiv","id":"2503.20721","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.20721","created_at":"2026-07-05T10:39:43Z"},{"alias_kind":"arxiv_version","alias_value":"2503.20721v1","created_at":"2026-07-05T10:39:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.20721","created_at":"2026-07-05T10:39:43Z"},{"alias_kind":"pith_short_12","alias_value":"XEF5F5TCXAYC","created_at":"2026-07-05T10:39:43Z"},{"alias_kind":"pith_short_16","alias_value":"XEF5F5TCXAYCMNLK","created_at":"2026-07-05T10:39:43Z"},{"alias_kind":"pith_short_8","alias_value":"XEF5F5TC","created_at":"2026-07-05T10:39:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:XEF5F5TCXAYCMNLKHZ35T6X2CO","target":"record","payload":{"canonical_record":{"source":{"id":"2503.20721","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-03-26T17:01:54Z","cross_cats_sorted":[],"title_canon_sha256":"791ff2744009cb80967c87e3408c6a8c8bf42d890ae9ef4df81a624d4e8ebbd9","abstract_canon_sha256":"d4a329f887456a05f687fd34e0fd5880ef9a32d4c67a924c76f694bec1e67fbe"},"schema_version":"1.0"},"canonical_sha256":"b90bd2f662b83026356a3e77d9fafa138b0e335cd90a5d0a62ab8922a5f85da1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:39:43.126083Z","signature_b64":"kqElngApmDRc2U30iXEVOYlPC06YIJuMS04FCnTuwn7oyA2cfz0UGwZu7L7WM+RzA5AU7WSTq08+nw0OyaPDAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b90bd2f662b83026356a3e77d9fafa138b0e335cd90a5d0a62ab8922a5f85da1","last_reissued_at":"2026-07-05T10:39:43.125599Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:39:43.125599Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2503.20721","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":"2026-07-05T10:39:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m5Cjw6EpgMDOqhdCUEgADZYtQF2dxMIAwWqlgCQGK+PiVq/g0Y4gmYPRfrWP+j6w9Dl0k+FFYNXslgeMtZQwCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T06:58:02.646749Z"},"content_sha256":"a3b9cd4141250c5a2a2e8b7d5ad8ada4556f96b23c2ac28bc255ef048f2d3cd2","schema_version":"1.0","event_id":"sha256:a3b9cd4141250c5a2a2e8b7d5ad8ada4556f96b23c2ac28bc255ef048f2d3cd2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:XEF5F5TCXAYCMNLKHZ35T6X2CO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Imprints of Stellar Feedback on Magnetic Fields in the Iris Nebula NGC 7023","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Chang Won Lee, Di Li, Ekta Sharma, Kate Pattle, Maheswar Gopinathan, Mehrnoosh Tahani, Shinyoung Kim, Tao-Chung Ching","submitted_at":"2025-03-26T17:01:54Z","abstract_excerpt":"We present 850 $\\mu$m polarized continuum observations carried out with the POL-2 polarimeter mounted on the James Clerk Maxwell Telescope (JCMT) towards NGC 7023 located in the Cepheus Flare region. NGC 7023 is a reflection nebula powered by a Herbig Ae Be star HD 200775 and also identified as a hub in the hub-filament cloud, LDN 1172/1174. We detect submillimetre emission well towards the northern (identified as C1) and the eastern region of the reflection nebula. We investigated the polarization structure and the magnetic field (B-field) morphology, which is found to be curved and follows t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.20721","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/2503.20721/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":"2026-07-05T10:39:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b58/LFb9AxJPh3XW944gVoSKAZv7awgvVc005pudDnzzlPumRZLmAoq86LSyGu8J6xrLWbcaKBD4GmJnhTbhBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T06:58:02.647263Z"},"content_sha256":"b9352eb00a61ca8f255148a755e41bf9d309e11a17971aa5e5c4f2bc6487436f","schema_version":"1.0","event_id":"sha256:b9352eb00a61ca8f255148a755e41bf9d309e11a17971aa5e5c4f2bc6487436f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XEF5F5TCXAYCMNLKHZ35T6X2CO/bundle.json","state_url":"https://pith.science/pith/XEF5F5TCXAYCMNLKHZ35T6X2CO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XEF5F5TCXAYCMNLKHZ35T6X2CO/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":"2026-08-11T06:58:02Z","links":{"resolver":"https://pith.science/pith/XEF5F5TCXAYCMNLKHZ35T6X2CO","bundle":"https://pith.science/pith/XEF5F5TCXAYCMNLKHZ35T6X2CO/bundle.json","state":"https://pith.science/pith/XEF5F5TCXAYCMNLKHZ35T6X2CO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XEF5F5TCXAYCMNLKHZ35T6X2CO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:XEF5F5TCXAYCMNLKHZ35T6X2CO","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":"d4a329f887456a05f687fd34e0fd5880ef9a32d4c67a924c76f694bec1e67fbe","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-03-26T17:01:54Z","title_canon_sha256":"791ff2744009cb80967c87e3408c6a8c8bf42d890ae9ef4df81a624d4e8ebbd9"},"schema_version":"1.0","source":{"id":"2503.20721","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.20721","created_at":"2026-07-05T10:39:43Z"},{"alias_kind":"arxiv_version","alias_value":"2503.20721v1","created_at":"2026-07-05T10:39:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.20721","created_at":"2026-07-05T10:39:43Z"},{"alias_kind":"pith_short_12","alias_value":"XEF5F5TCXAYC","created_at":"2026-07-05T10:39:43Z"},{"alias_kind":"pith_short_16","alias_value":"XEF5F5TCXAYCMNLK","created_at":"2026-07-05T10:39:43Z"},{"alias_kind":"pith_short_8","alias_value":"XEF5F5TC","created_at":"2026-07-05T10:39:43Z"}],"graph_snapshots":[{"event_id":"sha256:b9352eb00a61ca8f255148a755e41bf9d309e11a17971aa5e5c4f2bc6487436f","target":"graph","created_at":"2026-07-05T10:39:43Z","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/2503.20721/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present 850 $\\mu$m polarized continuum observations carried out with the POL-2 polarimeter mounted on the James Clerk Maxwell Telescope (JCMT) towards NGC 7023 located in the Cepheus Flare region. NGC 7023 is a reflection nebula powered by a Herbig Ae Be star HD 200775 and also identified as a hub in the hub-filament cloud, LDN 1172/1174. We detect submillimetre emission well towards the northern (identified as C1) and the eastern region of the reflection nebula. We investigated the polarization structure and the magnetic field (B-field) morphology, which is found to be curved and follows t","authors_text":"Chang Won Lee, Di Li, Ekta Sharma, Kate Pattle, Maheswar Gopinathan, Mehrnoosh Tahani, Shinyoung Kim, Tao-Chung Ching","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-03-26T17:01:54Z","title":"Imprints of Stellar Feedback on Magnetic Fields in the Iris Nebula NGC 7023"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.20721","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:a3b9cd4141250c5a2a2e8b7d5ad8ada4556f96b23c2ac28bc255ef048f2d3cd2","target":"record","created_at":"2026-07-05T10:39:43Z","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":"d4a329f887456a05f687fd34e0fd5880ef9a32d4c67a924c76f694bec1e67fbe","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-03-26T17:01:54Z","title_canon_sha256":"791ff2744009cb80967c87e3408c6a8c8bf42d890ae9ef4df81a624d4e8ebbd9"},"schema_version":"1.0","source":{"id":"2503.20721","kind":"arxiv","version":1}},"canonical_sha256":"b90bd2f662b83026356a3e77d9fafa138b0e335cd90a5d0a62ab8922a5f85da1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b90bd2f662b83026356a3e77d9fafa138b0e335cd90a5d0a62ab8922a5f85da1","first_computed_at":"2026-07-05T10:39:43.125599Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:39:43.125599Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kqElngApmDRc2U30iXEVOYlPC06YIJuMS04FCnTuwn7oyA2cfz0UGwZu7L7WM+RzA5AU7WSTq08+nw0OyaPDAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:39:43.126083Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.20721","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a3b9cd4141250c5a2a2e8b7d5ad8ada4556f96b23c2ac28bc255ef048f2d3cd2","sha256:b9352eb00a61ca8f255148a755e41bf9d309e11a17971aa5e5c4f2bc6487436f"],"state_sha256":"22dfdd29c2f9fc53bd4b0bcc5ecece8ddc95d7ceaa7cc2981c581150ec7be4a0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h5YRu8lTMt0tbb5wWOmaBtK/DAKBwn57qJzymufcW61sR13BkMI6xIL69PomjXkFyJDkXrwflzlR+twmCSJoCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T06:58:02.651918Z","bundle_sha256":"fcfdf42d48e9fc9d6859ad2ebbf4b7f552885477edfb711e8b41059f0b8ed16d"}}