{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:JJTV3R2SBOSUIYZHUUGMEW7YK7","short_pith_number":"pith:JJTV3R2S","canonical_record":{"source":{"id":"astro-ph/0010396","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-10-19T15:58:05Z","cross_cats_sorted":[],"title_canon_sha256":"bcc1dc31ca72cdd63fd854984d22781b787003e10aa32b3128e75cabc5573bf1","abstract_canon_sha256":"0761ddcccccf13a72d6e76cceca01fb266425b4b3b552832d927b890f2ef7afd"},"schema_version":"1.0"},"canonical_sha256":"4a675dc7520ba5446327a50cc25bf857efcf06bd4f23b8864835369e776546a7","source":{"kind":"arxiv","id":"astro-ph/0010396","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0010396","created_at":"2026-05-18T04:33:37Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0010396v1","created_at":"2026-05-18T04:33:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0010396","created_at":"2026-05-18T04:33:37Z"},{"alias_kind":"pith_short_12","alias_value":"JJTV3R2SBOSU","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"JJTV3R2SBOSUIYZH","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"JJTV3R2S","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:JJTV3R2SBOSUIYZHUUGMEW7YK7","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0010396","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-10-19T15:58:05Z","cross_cats_sorted":[],"title_canon_sha256":"bcc1dc31ca72cdd63fd854984d22781b787003e10aa32b3128e75cabc5573bf1","abstract_canon_sha256":"0761ddcccccf13a72d6e76cceca01fb266425b4b3b552832d927b890f2ef7afd"},"schema_version":"1.0"},"canonical_sha256":"4a675dc7520ba5446327a50cc25bf857efcf06bd4f23b8864835369e776546a7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:33:37.965545Z","signature_b64":"nd1366psEE+Cvv8YSeIlijIzXtKCJWwWJHkcVXY3KXtMz8fqElQumiFP0tgyd2aISwcXH81TqVZHxtuptO/bDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4a675dc7520ba5446327a50cc25bf857efcf06bd4f23b8864835369e776546a7","last_reissued_at":"2026-05-18T04:33:37.965035Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:33:37.965035Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0010396","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":"2026-05-18T04:33:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NFybJfzzn8IA7mApH+/RRF8Aal/lN+4FvCfepWyIaBTNVJli6qli+1nl2dmxuTGO74eoe8N6GvfOPyEu0LA7Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:22:40.187111Z"},"content_sha256":"faf38e1457b2156965fbce38dad1e918896bca40e89b390a7575c80c604581e6","schema_version":"1.0","event_id":"sha256:faf38e1457b2156965fbce38dad1e918896bca40e89b390a7575c80c604581e6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:JJTV3R2SBOSUIYZHUUGMEW7YK7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Variability Modes of Blazars from Intensive Optical Monitoring","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"E. Massaro, F. Montagni, G. Tosti, M. Maesano, R. Nesci, S. Ciprini","submitted_at":"2000-10-19T15:58:05Z","abstract_excerpt":"We report the main results of our six year long intensive optical monitoring on blazars ON 231 (W Com), BL Lac, and 3C 273. Intensive optical monitoring is an indispensable tool to obtain well sampled light curves and thus to understand the correlation with the variability in other bands and to discriminate among the proposed emission models. The curves based on our work show different variability modes: intermittent mode, quasi-regular mode and mixed mode. It is not clear if different variability modes can be present, at various times, in the life of an object suggesting that their occurrence"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0010396","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":"2026-05-18T04:33:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WDgfsDFIC5+gauKrUhjOyeD6UL2U9wD/cBJAOYI/CzDrU9WifxKTS/riuONwYlszeDkz2Rqjy3MlNmI3k95hDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:22:40.187961Z"},"content_sha256":"2d0a39cf8d3eb85b11404a3e1a22e919cc2a29564b3f06c385a1c0c24d35d70b","schema_version":"1.0","event_id":"sha256:2d0a39cf8d3eb85b11404a3e1a22e919cc2a29564b3f06c385a1c0c24d35d70b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JJTV3R2SBOSUIYZHUUGMEW7YK7/bundle.json","state_url":"https://pith.science/pith/JJTV3R2SBOSUIYZHUUGMEW7YK7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JJTV3R2SBOSUIYZHUUGMEW7YK7/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":"2026-05-31T23:22:40Z","links":{"resolver":"https://pith.science/pith/JJTV3R2SBOSUIYZHUUGMEW7YK7","bundle":"https://pith.science/pith/JJTV3R2SBOSUIYZHUUGMEW7YK7/bundle.json","state":"https://pith.science/pith/JJTV3R2SBOSUIYZHUUGMEW7YK7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JJTV3R2SBOSUIYZHUUGMEW7YK7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:JJTV3R2SBOSUIYZHUUGMEW7YK7","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":"0761ddcccccf13a72d6e76cceca01fb266425b4b3b552832d927b890f2ef7afd","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-10-19T15:58:05Z","title_canon_sha256":"bcc1dc31ca72cdd63fd854984d22781b787003e10aa32b3128e75cabc5573bf1"},"schema_version":"1.0","source":{"id":"astro-ph/0010396","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0010396","created_at":"2026-05-18T04:33:37Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0010396v1","created_at":"2026-05-18T04:33:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0010396","created_at":"2026-05-18T04:33:37Z"},{"alias_kind":"pith_short_12","alias_value":"JJTV3R2SBOSU","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"JJTV3R2SBOSUIYZH","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"JJTV3R2S","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:2d0a39cf8d3eb85b11404a3e1a22e919cc2a29564b3f06c385a1c0c24d35d70b","target":"graph","created_at":"2026-05-18T04:33:37Z","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":"We report the main results of our six year long intensive optical monitoring on blazars ON 231 (W Com), BL Lac, and 3C 273. Intensive optical monitoring is an indispensable tool to obtain well sampled light curves and thus to understand the correlation with the variability in other bands and to discriminate among the proposed emission models. The curves based on our work show different variability modes: intermittent mode, quasi-regular mode and mixed mode. It is not clear if different variability modes can be present, at various times, in the life of an object suggesting that their occurrence","authors_text":"E. Massaro, F. Montagni, G. Tosti, M. Maesano, R. Nesci, S. Ciprini","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-10-19T15:58:05Z","title":"Variability Modes of Blazars from Intensive Optical Monitoring"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0010396","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:faf38e1457b2156965fbce38dad1e918896bca40e89b390a7575c80c604581e6","target":"record","created_at":"2026-05-18T04:33:37Z","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":"0761ddcccccf13a72d6e76cceca01fb266425b4b3b552832d927b890f2ef7afd","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-10-19T15:58:05Z","title_canon_sha256":"bcc1dc31ca72cdd63fd854984d22781b787003e10aa32b3128e75cabc5573bf1"},"schema_version":"1.0","source":{"id":"astro-ph/0010396","kind":"arxiv","version":1}},"canonical_sha256":"4a675dc7520ba5446327a50cc25bf857efcf06bd4f23b8864835369e776546a7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4a675dc7520ba5446327a50cc25bf857efcf06bd4f23b8864835369e776546a7","first_computed_at":"2026-05-18T04:33:37.965035Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:33:37.965035Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nd1366psEE+Cvv8YSeIlijIzXtKCJWwWJHkcVXY3KXtMz8fqElQumiFP0tgyd2aISwcXH81TqVZHxtuptO/bDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:33:37.965545Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0010396","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:faf38e1457b2156965fbce38dad1e918896bca40e89b390a7575c80c604581e6","sha256:2d0a39cf8d3eb85b11404a3e1a22e919cc2a29564b3f06c385a1c0c24d35d70b"],"state_sha256":"7cc409a20858dd670439ca236adaa6a504f247c279fd8221ad29a925d2c58d5d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d/GXVknvZbRwo0th883vE4PhvVmpB0LUaHREW5MTmQKwVWSAlgB1eI9mDxiU8ykMkwkOQkbfU2ONmoTa37YvDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T23:22:40.193542Z","bundle_sha256":"45aeda66f000464e59d7227c69ca4d33201e00a4aed0b748a80fddc445690a59"}}