{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:GKXE57JSPVB4OVUDTKDUJKKOUB","short_pith_number":"pith:GKXE57JS","canonical_record":{"source":{"id":"1610.07653","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-10-24T21:05:40Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"15d10ebf38bc58a878deab44e1d37a586baa00494a0d84880513d3cb1731fa0f","abstract_canon_sha256":"605e7bc2568d339731ab8536664adbd7a4388318763d68444b07eff062adf3f1"},"schema_version":"1.0"},"canonical_sha256":"32ae4efd327d43c756839a8744a94ea0736885d00ae2305498f291851e179fc6","source":{"kind":"arxiv","id":"1610.07653","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07653","created_at":"2026-05-18T00:51:42Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07653v1","created_at":"2026-05-18T00:51:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07653","created_at":"2026-05-18T00:51:42Z"},{"alias_kind":"pith_short_12","alias_value":"GKXE57JSPVB4","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_16","alias_value":"GKXE57JSPVB4OVUD","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_8","alias_value":"GKXE57JS","created_at":"2026-05-18T12:30:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:GKXE57JSPVB4OVUDTKDUJKKOUB","target":"record","payload":{"canonical_record":{"source":{"id":"1610.07653","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-10-24T21:05:40Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"15d10ebf38bc58a878deab44e1d37a586baa00494a0d84880513d3cb1731fa0f","abstract_canon_sha256":"605e7bc2568d339731ab8536664adbd7a4388318763d68444b07eff062adf3f1"},"schema_version":"1.0"},"canonical_sha256":"32ae4efd327d43c756839a8744a94ea0736885d00ae2305498f291851e179fc6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:51:42.972871Z","signature_b64":"RH0JwF3mflDXNm7A5i4VF5QeZroOlbvGIC+ucSvtqxFrI/HSQ1LeC1RnRyUEcABs2o6YdxYvOUH5A5VgDEz1AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"32ae4efd327d43c756839a8744a94ea0736885d00ae2305498f291851e179fc6","last_reissued_at":"2026-05-18T00:51:42.972369Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:51:42.972369Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.07653","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":"2026-05-18T00:51:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i1AaQQRSXG/XDWBAaD6/nZ+nRM9Bu94DonOexSSVXC8iIeA3/xPg5qVlAc2YnDnDh4FyIgO97GxFH8lc0X3DAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T09:24:06.368200Z"},"content_sha256":"f42249b1013aebc5f92b7dc60bb3cb3d551c6698f99e9539f05cb4818a8e12c8","schema_version":"1.0","event_id":"sha256:f42249b1013aebc5f92b7dc60bb3cb3d551c6698f99e9539f05cb4818a8e12c8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:GKXE57JSPVB4OVUDTKDUJKKOUB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Synchrotron radiation and absence of linear polarization in the colliding wind binary WR 146","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"B. S. Koribalski, C. A. Hales, G. E. Romero, P. Benaglia, S. del Palacio","submitted_at":"2016-10-24T21:05:40Z","abstract_excerpt":"Several massive early-type binaries exhibit non-thermal emission which has been attributed to synchrotron radiation from particles accelerated by diffusive shock acceleration (DSA) in the wind-collision region (WCR). If the magnetic field in the strong shocks is ordered, its component parallel to the shock front should be enhanced, and the resultant synchrotron radiation would be polarized. However, such polarization has never been measured. We performed spatially-unresolved radio continuum observations of WR 146, a well known a WC6+O8 system, at 5 cm and 20 cm with the Karl G. Jansky Very Lar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07653","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":""},"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":"2026-05-18T00:51:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HJnrbK0O/VmnrKHjzIueLRGkqFndV1rAphO+RKScfd009FjKjXR8c4R+4My2stPCwKHm8aOepn0o9LqaIxcPAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T09:24:06.368572Z"},"content_sha256":"5d9486b6ec7e8167b608f83520057e8f7e15965f17323b3374911faec3dd6c88","schema_version":"1.0","event_id":"sha256:5d9486b6ec7e8167b608f83520057e8f7e15965f17323b3374911faec3dd6c88"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GKXE57JSPVB4OVUDTKDUJKKOUB/bundle.json","state_url":"https://pith.science/pith/GKXE57JSPVB4OVUDTKDUJKKOUB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GKXE57JSPVB4OVUDTKDUJKKOUB/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":"2026-05-28T09:24:06Z","links":{"resolver":"https://pith.science/pith/GKXE57JSPVB4OVUDTKDUJKKOUB","bundle":"https://pith.science/pith/GKXE57JSPVB4OVUDTKDUJKKOUB/bundle.json","state":"https://pith.science/pith/GKXE57JSPVB4OVUDTKDUJKKOUB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GKXE57JSPVB4OVUDTKDUJKKOUB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:GKXE57JSPVB4OVUDTKDUJKKOUB","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":"605e7bc2568d339731ab8536664adbd7a4388318763d68444b07eff062adf3f1","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-10-24T21:05:40Z","title_canon_sha256":"15d10ebf38bc58a878deab44e1d37a586baa00494a0d84880513d3cb1731fa0f"},"schema_version":"1.0","source":{"id":"1610.07653","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07653","created_at":"2026-05-18T00:51:42Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07653v1","created_at":"2026-05-18T00:51:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07653","created_at":"2026-05-18T00:51:42Z"},{"alias_kind":"pith_short_12","alias_value":"GKXE57JSPVB4","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_16","alias_value":"GKXE57JSPVB4OVUD","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_8","alias_value":"GKXE57JS","created_at":"2026-05-18T12:30:19Z"}],"graph_snapshots":[{"event_id":"sha256:5d9486b6ec7e8167b608f83520057e8f7e15965f17323b3374911faec3dd6c88","target":"graph","created_at":"2026-05-18T00:51:42Z","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":"Several massive early-type binaries exhibit non-thermal emission which has been attributed to synchrotron radiation from particles accelerated by diffusive shock acceleration (DSA) in the wind-collision region (WCR). If the magnetic field in the strong shocks is ordered, its component parallel to the shock front should be enhanced, and the resultant synchrotron radiation would be polarized. However, such polarization has never been measured. We performed spatially-unresolved radio continuum observations of WR 146, a well known a WC6+O8 system, at 5 cm and 20 cm with the Karl G. Jansky Very Lar","authors_text":"B. S. Koribalski, C. A. Hales, G. E. Romero, P. Benaglia, S. del Palacio","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-10-24T21:05:40Z","title":"Synchrotron radiation and absence of linear polarization in the colliding wind binary WR 146"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07653","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:f42249b1013aebc5f92b7dc60bb3cb3d551c6698f99e9539f05cb4818a8e12c8","target":"record","created_at":"2026-05-18T00:51:42Z","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":"605e7bc2568d339731ab8536664adbd7a4388318763d68444b07eff062adf3f1","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-10-24T21:05:40Z","title_canon_sha256":"15d10ebf38bc58a878deab44e1d37a586baa00494a0d84880513d3cb1731fa0f"},"schema_version":"1.0","source":{"id":"1610.07653","kind":"arxiv","version":1}},"canonical_sha256":"32ae4efd327d43c756839a8744a94ea0736885d00ae2305498f291851e179fc6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"32ae4efd327d43c756839a8744a94ea0736885d00ae2305498f291851e179fc6","first_computed_at":"2026-05-18T00:51:42.972369Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:42.972369Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RH0JwF3mflDXNm7A5i4VF5QeZroOlbvGIC+ucSvtqxFrI/HSQ1LeC1RnRyUEcABs2o6YdxYvOUH5A5VgDEz1AA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:42.972871Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.07653","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f42249b1013aebc5f92b7dc60bb3cb3d551c6698f99e9539f05cb4818a8e12c8","sha256:5d9486b6ec7e8167b608f83520057e8f7e15965f17323b3374911faec3dd6c88"],"state_sha256":"239c6384e35314b0815723414fbb8d4e159b93e26cd442cdee78e450f031f95b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rzyQFC2TsJkvbVZR60CwgzZ53Cmjipmr8Wmf9s/r+Y7C/XEGmvdzX73M+3J+M841xDxgM6lrV1EyDPI8F+giAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T09:24:06.370539Z","bundle_sha256":"c0f63ce1ad130f854c33ee6685211e95d422cf569f55ae2fe595b7ed0980b702"}}