{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:KJI6QVNA6EWRV4USY4J4RMIX2S","short_pith_number":"pith:KJI6QVNA","canonical_record":{"source":{"id":"1409.6214","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-22T15:55:21Z","cross_cats_sorted":[],"title_canon_sha256":"0c666e99970e439e5ef573d5865d19c96c89f16862243405a41fb15714772d77","abstract_canon_sha256":"40f53f625f701ec78f325c7312943196f491f982dabbc687ce4ac33892eff8a7"},"schema_version":"1.0"},"canonical_sha256":"5251e855a0f12d1af292c713c8b117d48c72788b8e437e147751ca9c6d76dac0","source":{"kind":"arxiv","id":"1409.6214","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.6214","created_at":"2026-05-18T01:41:59Z"},{"alias_kind":"arxiv_version","alias_value":"1409.6214v2","created_at":"2026-05-18T01:41:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.6214","created_at":"2026-05-18T01:41:59Z"},{"alias_kind":"pith_short_12","alias_value":"KJI6QVNA6EWR","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"KJI6QVNA6EWRV4US","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"KJI6QVNA","created_at":"2026-05-18T12:28:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:KJI6QVNA6EWRV4USY4J4RMIX2S","target":"record","payload":{"canonical_record":{"source":{"id":"1409.6214","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-22T15:55:21Z","cross_cats_sorted":[],"title_canon_sha256":"0c666e99970e439e5ef573d5865d19c96c89f16862243405a41fb15714772d77","abstract_canon_sha256":"40f53f625f701ec78f325c7312943196f491f982dabbc687ce4ac33892eff8a7"},"schema_version":"1.0"},"canonical_sha256":"5251e855a0f12d1af292c713c8b117d48c72788b8e437e147751ca9c6d76dac0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:59.107828Z","signature_b64":"wdVTOBrboefUNcnh01aTg8jkxMKsCldsZjKZjpx/52QkQhIkIxNOn+FBVdC2irRVOjWbR6tu+BRXBB/DyimCDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5251e855a0f12d1af292c713c8b117d48c72788b8e437e147751ca9c6d76dac0","last_reissued_at":"2026-05-18T01:41:59.106883Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:59.106883Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.6214","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":"2026-05-18T01:41:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ADrsw03mwEdVvbI3U7xJjCD2yT1SMKmQPNYBpuK53NeBGdwp6xVxQtLdSdh95Og2L0/dtmShrTX5RyCPVh7pDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T15:18:42.283954Z"},"content_sha256":"beb0342f08bd8a36b7cd85436d21a7a05da92a44c9c2ee7324dbfc4436dbc908","schema_version":"1.0","event_id":"sha256:beb0342f08bd8a36b7cd85436d21a7a05da92a44c9c2ee7324dbfc4436dbc908"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:KJI6QVNA6EWRV4USY4J4RMIX2S","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Analyzing the Data from X-ray Polarimeters with Stokes Parameters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"B. Clark, F. Kislat, H. Krawczynski, M. Beilicke","submitted_at":"2014-09-22T15:55:21Z","abstract_excerpt":"X-ray polarimetry promises to deliver unique information about the geometry of the inner accretion flow of astrophysical black holes and the nature of matter and electromagnetism in and around neutron stars. In this paper, we discuss the possibility to use Stokes parameters - a commonly used tool in radio, infrared, and optical polarimetry - to analyze the data from X-ray polarimeters such as scattering polarimeters and photoelectric effect polarimeters, which measure the linear polarization of the detected X-rays. Based on the azimuthal scattering angle (in the case of a scattering polarimete"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.6214","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":"2026-05-18T01:41:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vM6hZMTNDA24hdFj9idFFkcAV9f8emmDiBfgCd0cs/XzOlP+TovysUSxcLjz0kKj3UvM1lU2dvtHRITPnZceDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T15:18:42.284294Z"},"content_sha256":"029785cbedb827229525837c166e670a2edf1f112ccd451fd9cd4d3925a35002","schema_version":"1.0","event_id":"sha256:029785cbedb827229525837c166e670a2edf1f112ccd451fd9cd4d3925a35002"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KJI6QVNA6EWRV4USY4J4RMIX2S/bundle.json","state_url":"https://pith.science/pith/KJI6QVNA6EWRV4USY4J4RMIX2S/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KJI6QVNA6EWRV4USY4J4RMIX2S/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":"2026-05-30T15:18:42Z","links":{"resolver":"https://pith.science/pith/KJI6QVNA6EWRV4USY4J4RMIX2S","bundle":"https://pith.science/pith/KJI6QVNA6EWRV4USY4J4RMIX2S/bundle.json","state":"https://pith.science/pith/KJI6QVNA6EWRV4USY4J4RMIX2S/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KJI6QVNA6EWRV4USY4J4RMIX2S/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:KJI6QVNA6EWRV4USY4J4RMIX2S","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":"40f53f625f701ec78f325c7312943196f491f982dabbc687ce4ac33892eff8a7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-22T15:55:21Z","title_canon_sha256":"0c666e99970e439e5ef573d5865d19c96c89f16862243405a41fb15714772d77"},"schema_version":"1.0","source":{"id":"1409.6214","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.6214","created_at":"2026-05-18T01:41:59Z"},{"alias_kind":"arxiv_version","alias_value":"1409.6214v2","created_at":"2026-05-18T01:41:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.6214","created_at":"2026-05-18T01:41:59Z"},{"alias_kind":"pith_short_12","alias_value":"KJI6QVNA6EWR","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"KJI6QVNA6EWRV4US","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"KJI6QVNA","created_at":"2026-05-18T12:28:35Z"}],"graph_snapshots":[{"event_id":"sha256:029785cbedb827229525837c166e670a2edf1f112ccd451fd9cd4d3925a35002","target":"graph","created_at":"2026-05-18T01:41:59Z","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":"X-ray polarimetry promises to deliver unique information about the geometry of the inner accretion flow of astrophysical black holes and the nature of matter and electromagnetism in and around neutron stars. In this paper, we discuss the possibility to use Stokes parameters - a commonly used tool in radio, infrared, and optical polarimetry - to analyze the data from X-ray polarimeters such as scattering polarimeters and photoelectric effect polarimeters, which measure the linear polarization of the detected X-rays. Based on the azimuthal scattering angle (in the case of a scattering polarimete","authors_text":"B. Clark, F. Kislat, H. Krawczynski, M. Beilicke","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-22T15:55:21Z","title":"Analyzing the Data from X-ray Polarimeters with Stokes Parameters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.6214","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:beb0342f08bd8a36b7cd85436d21a7a05da92a44c9c2ee7324dbfc4436dbc908","target":"record","created_at":"2026-05-18T01:41:59Z","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":"40f53f625f701ec78f325c7312943196f491f982dabbc687ce4ac33892eff8a7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-22T15:55:21Z","title_canon_sha256":"0c666e99970e439e5ef573d5865d19c96c89f16862243405a41fb15714772d77"},"schema_version":"1.0","source":{"id":"1409.6214","kind":"arxiv","version":2}},"canonical_sha256":"5251e855a0f12d1af292c713c8b117d48c72788b8e437e147751ca9c6d76dac0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5251e855a0f12d1af292c713c8b117d48c72788b8e437e147751ca9c6d76dac0","first_computed_at":"2026-05-18T01:41:59.106883Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:59.106883Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wdVTOBrboefUNcnh01aTg8jkxMKsCldsZjKZjpx/52QkQhIkIxNOn+FBVdC2irRVOjWbR6tu+BRXBB/DyimCDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:59.107828Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.6214","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:beb0342f08bd8a36b7cd85436d21a7a05da92a44c9c2ee7324dbfc4436dbc908","sha256:029785cbedb827229525837c166e670a2edf1f112ccd451fd9cd4d3925a35002"],"state_sha256":"0ef8be4fc025855cf7f855dc86c1a53d8818aa1edd71fd3f60370da422af9d6a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S34YJ8cXrzMRsZ18USMEicsORV/T4r8PXNnOWQXFvrGjovhSPBKQzv/bFnI3HAwbscWKP+qGyn3tgjTQDznPDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T15:18:42.286214Z","bundle_sha256":"0e880e76f88657e743295c3191fa2306b35902749ba7ca1f8c290bfef8387cde"}}