{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:D2XBLIJZ3BPKEH4ZAHTYTOPV2B","short_pith_number":"pith:D2XBLIJZ","canonical_record":{"source":{"id":"0807.1424","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-07-09T11:32:17Z","cross_cats_sorted":[],"title_canon_sha256":"327bc040cf7743a509b79bac3673e3f2ed1884172fc91cfbf3befc314c340352","abstract_canon_sha256":"eebc19b4f3b3737399f07f788d525242729a60cdaa0a88600a001dff6fcc50a9"},"schema_version":"1.0"},"canonical_sha256":"1eae15a139d85ea21f9901e789b9f5d073231a3b3ee5bdf3e8ca30b0f9395700","source":{"kind":"arxiv","id":"0807.1424","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0807.1424","created_at":"2026-07-04T17:11:43Z"},{"alias_kind":"arxiv_version","alias_value":"0807.1424v1","created_at":"2026-07-04T17:11:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0807.1424","created_at":"2026-07-04T17:11:43Z"},{"alias_kind":"pith_short_12","alias_value":"D2XBLIJZ3BPK","created_at":"2026-07-04T17:11:43Z"},{"alias_kind":"pith_short_16","alias_value":"D2XBLIJZ3BPKEH4Z","created_at":"2026-07-04T17:11:43Z"},{"alias_kind":"pith_short_8","alias_value":"D2XBLIJZ","created_at":"2026-07-04T17:11:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:D2XBLIJZ3BPKEH4ZAHTYTOPV2B","target":"record","payload":{"canonical_record":{"source":{"id":"0807.1424","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-07-09T11:32:17Z","cross_cats_sorted":[],"title_canon_sha256":"327bc040cf7743a509b79bac3673e3f2ed1884172fc91cfbf3befc314c340352","abstract_canon_sha256":"eebc19b4f3b3737399f07f788d525242729a60cdaa0a88600a001dff6fcc50a9"},"schema_version":"1.0"},"canonical_sha256":"1eae15a139d85ea21f9901e789b9f5d073231a3b3ee5bdf3e8ca30b0f9395700","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:11:43.402423Z","signature_b64":"nWe2jPddhK7WDHkCxv4rJcaCoy0dlP5o1Jc5fkfn+/l243ZYvvUHY0zSnATCnN0SpU1/Pq9oY/LHkRELaz8oCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1eae15a139d85ea21f9901e789b9f5d073231a3b3ee5bdf3e8ca30b0f9395700","last_reissued_at":"2026-07-04T17:11:43.402067Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:11:43.402067Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0807.1424","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":"2026-07-04T17:11:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HG7009N0Dvqh8ysTxeA7dRgQWmkKau6r23BHPEZjq4GKbf5h2GZkJs5Vah6pvyTuMh9nsfkocOVZ0b1eiOPMBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T15:41:52.332197Z"},"content_sha256":"57a01f15a8297a3f002a2a8d59dc0fc7f2f4a51c67492ad82b630395973ab9af","schema_version":"1.0","event_id":"sha256:57a01f15a8297a3f002a2a8d59dc0fc7f2f4a51c67492ad82b630395973ab9af"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:D2XBLIJZ3BPKEH4ZAHTYTOPV2B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Near-Infrared Imaging Polarimetry of M42: Aperture Polarimetry of Point-like Sources","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Jim Hough, Jun Hashimoto, Motohide Tamura, Nobuhiko Kusakabe, Phil Lucas, Ryo Kandori, Takahiro Nagayama, Tetsuya Nagata, Yasushi Nakajima","submitted_at":"2008-07-09T11:32:17Z","abstract_excerpt":"We have conducted aperture polarimetry of ~500 stars of the Orion Nebula Cluster (ONC) in M42 based on our wide-field (~8'\\times 8') $JHKs$ band polarimetry.\n  Most of the near-infrared (NIR) polarizations are dichroic, with position angles of polarization agreeing, both globally and locally, with previous far-infrared (FIR) and submillimeter observations, having taken into account the 90$^\\circ $ difference in angles between dichroic absorption and emission. This is consistent with the idea that both NIR dichroic polarizations and FIR/submillimeter thermal polarizations trace the magnetic fie"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0807.1424","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/0807.1424/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":"2026-07-04T17:11:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GsaZthl75abZFxNloSQO0x0ZOukZv0XuipNy0EbiV1xAX5Bjpq8UVgJi8Zqph0Y5JIkmjV6S6D+7gvltsjvWAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T15:41:52.332711Z"},"content_sha256":"1a4ea21a394891eda6a555219dfeb4270cc08fe905b88b4a64102fc255acd369","schema_version":"1.0","event_id":"sha256:1a4ea21a394891eda6a555219dfeb4270cc08fe905b88b4a64102fc255acd369"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D2XBLIJZ3BPKEH4ZAHTYTOPV2B/bundle.json","state_url":"https://pith.science/pith/D2XBLIJZ3BPKEH4ZAHTYTOPV2B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D2XBLIJZ3BPKEH4ZAHTYTOPV2B/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":"2026-08-04T15:41:52Z","links":{"resolver":"https://pith.science/pith/D2XBLIJZ3BPKEH4ZAHTYTOPV2B","bundle":"https://pith.science/pith/D2XBLIJZ3BPKEH4ZAHTYTOPV2B/bundle.json","state":"https://pith.science/pith/D2XBLIJZ3BPKEH4ZAHTYTOPV2B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D2XBLIJZ3BPKEH4ZAHTYTOPV2B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:D2XBLIJZ3BPKEH4ZAHTYTOPV2B","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":"eebc19b4f3b3737399f07f788d525242729a60cdaa0a88600a001dff6fcc50a9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-07-09T11:32:17Z","title_canon_sha256":"327bc040cf7743a509b79bac3673e3f2ed1884172fc91cfbf3befc314c340352"},"schema_version":"1.0","source":{"id":"0807.1424","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0807.1424","created_at":"2026-07-04T17:11:43Z"},{"alias_kind":"arxiv_version","alias_value":"0807.1424v1","created_at":"2026-07-04T17:11:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0807.1424","created_at":"2026-07-04T17:11:43Z"},{"alias_kind":"pith_short_12","alias_value":"D2XBLIJZ3BPK","created_at":"2026-07-04T17:11:43Z"},{"alias_kind":"pith_short_16","alias_value":"D2XBLIJZ3BPKEH4Z","created_at":"2026-07-04T17:11:43Z"},{"alias_kind":"pith_short_8","alias_value":"D2XBLIJZ","created_at":"2026-07-04T17:11:43Z"}],"graph_snapshots":[{"event_id":"sha256:1a4ea21a394891eda6a555219dfeb4270cc08fe905b88b4a64102fc255acd369","target":"graph","created_at":"2026-07-04T17:11:43Z","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/0807.1424/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We have conducted aperture polarimetry of ~500 stars of the Orion Nebula Cluster (ONC) in M42 based on our wide-field (~8'\\times 8') $JHKs$ band polarimetry.\n  Most of the near-infrared (NIR) polarizations are dichroic, with position angles of polarization agreeing, both globally and locally, with previous far-infrared (FIR) and submillimeter observations, having taken into account the 90$^\\circ $ difference in angles between dichroic absorption and emission. This is consistent with the idea that both NIR dichroic polarizations and FIR/submillimeter thermal polarizations trace the magnetic fie","authors_text":"Jim Hough, Jun Hashimoto, Motohide Tamura, Nobuhiko Kusakabe, Phil Lucas, Ryo Kandori, Takahiro Nagayama, Tetsuya Nagata, Yasushi Nakajima","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-07-09T11:32:17Z","title":"Near-Infrared Imaging Polarimetry of M42: Aperture Polarimetry of Point-like Sources"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0807.1424","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":"sha256:57a01f15a8297a3f002a2a8d59dc0fc7f2f4a51c67492ad82b630395973ab9af","target":"record","created_at":"2026-07-04T17:11:43Z","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":"eebc19b4f3b3737399f07f788d525242729a60cdaa0a88600a001dff6fcc50a9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-07-09T11:32:17Z","title_canon_sha256":"327bc040cf7743a509b79bac3673e3f2ed1884172fc91cfbf3befc314c340352"},"schema_version":"1.0","source":{"id":"0807.1424","kind":"arxiv","version":1}},"canonical_sha256":"1eae15a139d85ea21f9901e789b9f5d073231a3b3ee5bdf3e8ca30b0f9395700","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1eae15a139d85ea21f9901e789b9f5d073231a3b3ee5bdf3e8ca30b0f9395700","first_computed_at":"2026-07-04T17:11:43.402067Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:11:43.402067Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nWe2jPddhK7WDHkCxv4rJcaCoy0dlP5o1Jc5fkfn+/l243ZYvvUHY0zSnATCnN0SpU1/Pq9oY/LHkRELaz8oCg==","signature_status":"signed_v1","signed_at":"2026-07-04T17:11:43.402423Z","signed_message":"canonical_sha256_bytes"},"source_id":"0807.1424","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:57a01f15a8297a3f002a2a8d59dc0fc7f2f4a51c67492ad82b630395973ab9af","sha256:1a4ea21a394891eda6a555219dfeb4270cc08fe905b88b4a64102fc255acd369"],"state_sha256":"81f4484f3b135bee977f2993dbf7f7ba95d2888b6946e02ca8c16788405f79d5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yYEEYDZaZzPIrpUOeE5o6eNrU9BGl4UzPA4AF9zK0KgO0HADL/NW/I3ZQbbLNQ/Bv/XHbPZsCU4cmxkSqK7LCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T15:41:52.337437Z","bundle_sha256":"31479f6759dd065f43a3d0c59b63e01111eb820f53679f48ce626801fc6225d1"}}