{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:Q5HGLPVHE5NJTTWBD25XLWFGZG","short_pith_number":"pith:Q5HGLPVH","canonical_record":{"source":{"id":"2404.18576","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-04-29T10:32:59Z","cross_cats_sorted":[],"title_canon_sha256":"7480939e6ec3962e0ebb9e1074a4b318b0b5d3836bc0fbbecc9f4c1d061d9db2","abstract_canon_sha256":"33d81fbe32c7df9fdd5dee9a48bbbd79f14fc97809038cf9c4cfeef31d4fc546"},"schema_version":"1.0"},"canonical_sha256":"874e65bea7275a99cec11ebb75d8a6c9b7020cde188d131c7a467ce0e35386f4","source":{"kind":"arxiv","id":"2404.18576","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.18576","created_at":"2026-07-05T08:13:17Z"},{"alias_kind":"arxiv_version","alias_value":"2404.18576v1","created_at":"2026-07-05T08:13:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.18576","created_at":"2026-07-05T08:13:17Z"},{"alias_kind":"pith_short_12","alias_value":"Q5HGLPVHE5NJ","created_at":"2026-07-05T08:13:17Z"},{"alias_kind":"pith_short_16","alias_value":"Q5HGLPVHE5NJTTWB","created_at":"2026-07-05T08:13:17Z"},{"alias_kind":"pith_short_8","alias_value":"Q5HGLPVH","created_at":"2026-07-05T08:13:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:Q5HGLPVHE5NJTTWBD25XLWFGZG","target":"record","payload":{"canonical_record":{"source":{"id":"2404.18576","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-04-29T10:32:59Z","cross_cats_sorted":[],"title_canon_sha256":"7480939e6ec3962e0ebb9e1074a4b318b0b5d3836bc0fbbecc9f4c1d061d9db2","abstract_canon_sha256":"33d81fbe32c7df9fdd5dee9a48bbbd79f14fc97809038cf9c4cfeef31d4fc546"},"schema_version":"1.0"},"canonical_sha256":"874e65bea7275a99cec11ebb75d8a6c9b7020cde188d131c7a467ce0e35386f4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:13:17.802147Z","signature_b64":"L9WCP8au4KrvCqnNFt3uRkxtdtL/uFqsJsFvMb2LP+q/feHohhcXiLuP1o9h0Q/2uHXcJ5QteUFMpxZjU+B9Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"874e65bea7275a99cec11ebb75d8a6c9b7020cde188d131c7a467ce0e35386f4","last_reissued_at":"2026-07-05T08:13:17.801726Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:13:17.801726Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2404.18576","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":"2026-07-05T08:13:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/cJoWv0DEMRPVTQgTHnxRiOlB1OGRKmdZ6axCtIjpFMmWXG+wvJTZfa7Jk3803ZFCkTn6QwYuocP9jQOXJXjDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T06:08:29.779200Z"},"content_sha256":"43bd1e143448d69071f4a2b0300f5a830b5a2dd3b68d0c4bc3d79db0bc2fe814","schema_version":"1.0","event_id":"sha256:43bd1e143448d69071f4a2b0300f5a830b5a2dd3b68d0c4bc3d79db0bc2fe814"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:Q5HGLPVHE5NJTTWBD25XLWFGZG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The catalog of Hvar Observatory solar observations","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Akshay Kumar Remeshan, Bojan Vrsnak, Filip Matkovic, Jasa Calogovic, Karmen Martinic, Luci Karbonini, Mateja Dumbovic, Roman Brajsa","submitted_at":"2024-04-29T10:32:59Z","abstract_excerpt":"We compile the catalog of Hvar Observatory solar observations in the time period corresponding to regular digitally stored chromospheric and photospheric observations 2010-2019. We make basic characterisation of observed phenomena and compare them to catalogs which are based on full disc solar images. We compile a catalog of observed ARs consisting of 1100 entries, where each AR is classified according to McIntosh and Mt Wilson classifications. We find that HVAR observations are biased towards more frequently observing more complex ARs and observing them in longer time periods, likely related "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.18576","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/2404.18576/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":"2026-07-05T08:13:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ECQEGcWDu2yPznLDNl3gIOzAIR8zaXn8/Uv+FZ1AU1LnuyJ4cL6ejK/FmuMlZM5bWmAql3H+26akcERhJbZjBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T06:08:29.779864Z"},"content_sha256":"bedcd65271342790f174d4af1556647d78be17984db7f4d36fb707c350c12ed6","schema_version":"1.0","event_id":"sha256:bedcd65271342790f174d4af1556647d78be17984db7f4d36fb707c350c12ed6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q5HGLPVHE5NJTTWBD25XLWFGZG/bundle.json","state_url":"https://pith.science/pith/Q5HGLPVHE5NJTTWBD25XLWFGZG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q5HGLPVHE5NJTTWBD25XLWFGZG/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":"2026-08-04T06:08:29Z","links":{"resolver":"https://pith.science/pith/Q5HGLPVHE5NJTTWBD25XLWFGZG","bundle":"https://pith.science/pith/Q5HGLPVHE5NJTTWBD25XLWFGZG/bundle.json","state":"https://pith.science/pith/Q5HGLPVHE5NJTTWBD25XLWFGZG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q5HGLPVHE5NJTTWBD25XLWFGZG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:Q5HGLPVHE5NJTTWBD25XLWFGZG","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":"33d81fbe32c7df9fdd5dee9a48bbbd79f14fc97809038cf9c4cfeef31d4fc546","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-04-29T10:32:59Z","title_canon_sha256":"7480939e6ec3962e0ebb9e1074a4b318b0b5d3836bc0fbbecc9f4c1d061d9db2"},"schema_version":"1.0","source":{"id":"2404.18576","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.18576","created_at":"2026-07-05T08:13:17Z"},{"alias_kind":"arxiv_version","alias_value":"2404.18576v1","created_at":"2026-07-05T08:13:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.18576","created_at":"2026-07-05T08:13:17Z"},{"alias_kind":"pith_short_12","alias_value":"Q5HGLPVHE5NJ","created_at":"2026-07-05T08:13:17Z"},{"alias_kind":"pith_short_16","alias_value":"Q5HGLPVHE5NJTTWB","created_at":"2026-07-05T08:13:17Z"},{"alias_kind":"pith_short_8","alias_value":"Q5HGLPVH","created_at":"2026-07-05T08:13:17Z"}],"graph_snapshots":[{"event_id":"sha256:bedcd65271342790f174d4af1556647d78be17984db7f4d36fb707c350c12ed6","target":"graph","created_at":"2026-07-05T08:13:17Z","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/2404.18576/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We compile the catalog of Hvar Observatory solar observations in the time period corresponding to regular digitally stored chromospheric and photospheric observations 2010-2019. We make basic characterisation of observed phenomena and compare them to catalogs which are based on full disc solar images. We compile a catalog of observed ARs consisting of 1100 entries, where each AR is classified according to McIntosh and Mt Wilson classifications. We find that HVAR observations are biased towards more frequently observing more complex ARs and observing them in longer time periods, likely related ","authors_text":"Akshay Kumar Remeshan, Bojan Vrsnak, Filip Matkovic, Jasa Calogovic, Karmen Martinic, Luci Karbonini, Mateja Dumbovic, Roman Brajsa","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-04-29T10:32:59Z","title":"The catalog of Hvar Observatory solar observations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.18576","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":"sha256:43bd1e143448d69071f4a2b0300f5a830b5a2dd3b68d0c4bc3d79db0bc2fe814","target":"record","created_at":"2026-07-05T08:13:17Z","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":"33d81fbe32c7df9fdd5dee9a48bbbd79f14fc97809038cf9c4cfeef31d4fc546","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-04-29T10:32:59Z","title_canon_sha256":"7480939e6ec3962e0ebb9e1074a4b318b0b5d3836bc0fbbecc9f4c1d061d9db2"},"schema_version":"1.0","source":{"id":"2404.18576","kind":"arxiv","version":1}},"canonical_sha256":"874e65bea7275a99cec11ebb75d8a6c9b7020cde188d131c7a467ce0e35386f4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"874e65bea7275a99cec11ebb75d8a6c9b7020cde188d131c7a467ce0e35386f4","first_computed_at":"2026-07-05T08:13:17.801726Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:13:17.801726Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"L9WCP8au4KrvCqnNFt3uRkxtdtL/uFqsJsFvMb2LP+q/feHohhcXiLuP1o9h0Q/2uHXcJ5QteUFMpxZjU+B9Cw==","signature_status":"signed_v1","signed_at":"2026-07-05T08:13:17.802147Z","signed_message":"canonical_sha256_bytes"},"source_id":"2404.18576","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:43bd1e143448d69071f4a2b0300f5a830b5a2dd3b68d0c4bc3d79db0bc2fe814","sha256:bedcd65271342790f174d4af1556647d78be17984db7f4d36fb707c350c12ed6"],"state_sha256":"ff647d6662dcffde0a38b1a5b7edf2d8de76debb1609d773798bf6222ad70b0b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u0YNzFiJEHyGfDRhugaBeIqw3FtvrRfGR7zRm7Fcm9bnHlPsgrbV5wml5m+eAkLBrffiZCtwx3owyAF9Y1YXBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T06:08:29.788266Z","bundle_sha256":"c9dd040c639e23e792c6ea13108dd8f8cfaf062d5b195470beae19b2fce54e89"}}