{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:6ROT3R5TP744F3E445KGKQQKWB","short_pith_number":"pith:6ROT3R5T","canonical_record":{"source":{"id":"1707.07688","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-24T18:00:10Z","cross_cats_sorted":[],"title_canon_sha256":"e1c3df9b1ee25642218056ea4ad3dc814d555641a2c01858f71c385d3963456a","abstract_canon_sha256":"c5bd94d96f94a85fffa7c02f9a831c276c650bf92efd0dfdcf0c4d3690790317"},"schema_version":"1.0"},"canonical_sha256":"f45d3dc7b37ff9c2ec9ce75465420ab05159b7a30225aa5d8943c9fde286eefc","source":{"kind":"arxiv","id":"1707.07688","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.07688","created_at":"2026-05-18T00:30:43Z"},{"alias_kind":"arxiv_version","alias_value":"1707.07688v1","created_at":"2026-05-18T00:30:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.07688","created_at":"2026-05-18T00:30:43Z"},{"alias_kind":"pith_short_12","alias_value":"6ROT3R5TP744","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"6ROT3R5TP744F3E4","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"6ROT3R5T","created_at":"2026-05-18T12:31:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:6ROT3R5TP744F3E445KGKQQKWB","target":"record","payload":{"canonical_record":{"source":{"id":"1707.07688","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-24T18:00:10Z","cross_cats_sorted":[],"title_canon_sha256":"e1c3df9b1ee25642218056ea4ad3dc814d555641a2c01858f71c385d3963456a","abstract_canon_sha256":"c5bd94d96f94a85fffa7c02f9a831c276c650bf92efd0dfdcf0c4d3690790317"},"schema_version":"1.0"},"canonical_sha256":"f45d3dc7b37ff9c2ec9ce75465420ab05159b7a30225aa5d8943c9fde286eefc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:30:43.742348Z","signature_b64":"lGPmzXDW67dzcwPJZsrxJfl1KBPZsqsZNTuvd7Ur7HtLaSOy20VMWUfVE8mMHrPOqHAeeS5UJbZVLEpqOK+iCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f45d3dc7b37ff9c2ec9ce75465420ab05159b7a30225aa5d8943c9fde286eefc","last_reissued_at":"2026-05-18T00:30:43.741944Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:30:43.741944Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1707.07688","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":"2026-05-18T00:30:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LonjR2daPPiphuBPp4+lkRcCeT26WMb9BF50fNvsje+pFHTyhOFfm/5TVvXvKpTPE/zyrs1DxjXJGXn6MTU7DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:08:57.672828Z"},"content_sha256":"09f4c3ac06496fbed976b4534d08ddd8761e0f9f1a51e24f2bb8622a18698614","schema_version":"1.0","event_id":"sha256:09f4c3ac06496fbed976b4534d08ddd8761e0f9f1a51e24f2bb8622a18698614"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:6ROT3R5TP744F3E445KGKQQKWB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Impact of seeing and host galaxy into the analysis of photo-polarimetric microvariability in blazars - Case study of the nearby blazars 1ES 1959+650 and HB89 2201+044","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Carolina von Essen, Ileana Andruchow, Marina Sosa, Sergio Cellone","submitted_at":"2017-07-24T18:00:10Z","abstract_excerpt":"Blazars, a type of Active Galactic Nuclei, present a particular orientation of their jets close to the line ofsight. Their radiation is thus relativistically beamed, giving rise to extreme behaviors, specially strong variability on very short time-scales (i.e., microvariability). Here we present simultaneous photometric and polarimetric observations of two relatively nearby blazars, 1ES 1959+650 and HB89 2201+044, that were obtained using the Calar Alto Faint Object Spectrograph mounted at the 2.2 m telescope in Calar Alto, Spain. An outstanding characteristic of these two blazars is the prese"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.07688","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":"2026-05-18T00:30:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R5CpHeu8qnjIKiqcTq4tbjiKz8DsMDpJRNRUgFkJwyTh27GBwCSSgGRYCaJNbQS4kaIw5Lr/S1o5qrf9F0buDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:08:57.673563Z"},"content_sha256":"db58c515780519114928b1bf16f00553b92a11fbe54ccbe329fb6435043aa029","schema_version":"1.0","event_id":"sha256:db58c515780519114928b1bf16f00553b92a11fbe54ccbe329fb6435043aa029"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6ROT3R5TP744F3E445KGKQQKWB/bundle.json","state_url":"https://pith.science/pith/6ROT3R5TP744F3E445KGKQQKWB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6ROT3R5TP744F3E445KGKQQKWB/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":"2026-05-25T16:08:57Z","links":{"resolver":"https://pith.science/pith/6ROT3R5TP744F3E445KGKQQKWB","bundle":"https://pith.science/pith/6ROT3R5TP744F3E445KGKQQKWB/bundle.json","state":"https://pith.science/pith/6ROT3R5TP744F3E445KGKQQKWB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6ROT3R5TP744F3E445KGKQQKWB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:6ROT3R5TP744F3E445KGKQQKWB","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":"c5bd94d96f94a85fffa7c02f9a831c276c650bf92efd0dfdcf0c4d3690790317","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-24T18:00:10Z","title_canon_sha256":"e1c3df9b1ee25642218056ea4ad3dc814d555641a2c01858f71c385d3963456a"},"schema_version":"1.0","source":{"id":"1707.07688","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.07688","created_at":"2026-05-18T00:30:43Z"},{"alias_kind":"arxiv_version","alias_value":"1707.07688v1","created_at":"2026-05-18T00:30:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.07688","created_at":"2026-05-18T00:30:43Z"},{"alias_kind":"pith_short_12","alias_value":"6ROT3R5TP744","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"6ROT3R5TP744F3E4","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"6ROT3R5T","created_at":"2026-05-18T12:31:03Z"}],"graph_snapshots":[{"event_id":"sha256:db58c515780519114928b1bf16f00553b92a11fbe54ccbe329fb6435043aa029","target":"graph","created_at":"2026-05-18T00:30:43Z","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"},"paper":{"abstract_excerpt":"Blazars, a type of Active Galactic Nuclei, present a particular orientation of their jets close to the line ofsight. Their radiation is thus relativistically beamed, giving rise to extreme behaviors, specially strong variability on very short time-scales (i.e., microvariability). Here we present simultaneous photometric and polarimetric observations of two relatively nearby blazars, 1ES 1959+650 and HB89 2201+044, that were obtained using the Calar Alto Faint Object Spectrograph mounted at the 2.2 m telescope in Calar Alto, Spain. An outstanding characteristic of these two blazars is the prese","authors_text":"Carolina von Essen, Ileana Andruchow, Marina Sosa, Sergio Cellone","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-24T18:00:10Z","title":"Impact of seeing and host galaxy into the analysis of photo-polarimetric microvariability in blazars - Case study of the nearby blazars 1ES 1959+650 and HB89 2201+044"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.07688","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":"sha256:09f4c3ac06496fbed976b4534d08ddd8761e0f9f1a51e24f2bb8622a18698614","target":"record","created_at":"2026-05-18T00:30:43Z","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":"c5bd94d96f94a85fffa7c02f9a831c276c650bf92efd0dfdcf0c4d3690790317","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-07-24T18:00:10Z","title_canon_sha256":"e1c3df9b1ee25642218056ea4ad3dc814d555641a2c01858f71c385d3963456a"},"schema_version":"1.0","source":{"id":"1707.07688","kind":"arxiv","version":1}},"canonical_sha256":"f45d3dc7b37ff9c2ec9ce75465420ab05159b7a30225aa5d8943c9fde286eefc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f45d3dc7b37ff9c2ec9ce75465420ab05159b7a30225aa5d8943c9fde286eefc","first_computed_at":"2026-05-18T00:30:43.741944Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:30:43.741944Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lGPmzXDW67dzcwPJZsrxJfl1KBPZsqsZNTuvd7Ur7HtLaSOy20VMWUfVE8mMHrPOqHAeeS5UJbZVLEpqOK+iCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:30:43.742348Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.07688","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:09f4c3ac06496fbed976b4534d08ddd8761e0f9f1a51e24f2bb8622a18698614","sha256:db58c515780519114928b1bf16f00553b92a11fbe54ccbe329fb6435043aa029"],"state_sha256":"fcb136365e947ddbec2c8e014873f3da6e953545792fae8cd0a5960006e17bba"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xx/DrfHuu7CAuInKMFQHmP4cz2wwOVCLk3+EtWCau7mlJL6fXkyVN/KgxypNF1akKoW7wD2J1K4ggQZ7Z6S0AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T16:08:57.677497Z","bundle_sha256":"74b682f77ba43ece112759712d0db002e290fef4278ff5c1610fc6410d328be4"}}