{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:MSZRHBMFTSZIQDVPXCMZ6ZY6VD","short_pith_number":"pith:MSZRHBMF","canonical_record":{"source":{"id":"1910.09291","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.pop-ph","submitted_at":"2019-08-16T09:30:26Z","cross_cats_sorted":[],"title_canon_sha256":"5f0e7c0ec5150f8154819685065c080175ab51b4b2ae7ea8e22c86f2a32678b7","abstract_canon_sha256":"8b8897006f344ddeed1589204264d78fbe82a4f15d0ed3d97fcce079849bedcb"},"schema_version":"1.0"},"canonical_sha256":"64b31385859cb2880eafb8999f671ea8f09b535705c5f52c447ccb9e5f401b32","source":{"kind":"arxiv","id":"1910.09291","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.09291","created_at":"2026-07-05T00:13:32Z"},{"alias_kind":"arxiv_version","alias_value":"1910.09291v1","created_at":"2026-07-05T00:13:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.09291","created_at":"2026-07-05T00:13:32Z"},{"alias_kind":"pith_short_12","alias_value":"MSZRHBMFTSZI","created_at":"2026-07-05T00:13:32Z"},{"alias_kind":"pith_short_16","alias_value":"MSZRHBMFTSZIQDVP","created_at":"2026-07-05T00:13:32Z"},{"alias_kind":"pith_short_8","alias_value":"MSZRHBMF","created_at":"2026-07-05T00:13:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:MSZRHBMFTSZIQDVPXCMZ6ZY6VD","target":"record","payload":{"canonical_record":{"source":{"id":"1910.09291","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.pop-ph","submitted_at":"2019-08-16T09:30:26Z","cross_cats_sorted":[],"title_canon_sha256":"5f0e7c0ec5150f8154819685065c080175ab51b4b2ae7ea8e22c86f2a32678b7","abstract_canon_sha256":"8b8897006f344ddeed1589204264d78fbe82a4f15d0ed3d97fcce079849bedcb"},"schema_version":"1.0"},"canonical_sha256":"64b31385859cb2880eafb8999f671ea8f09b535705c5f52c447ccb9e5f401b32","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:13:32.330226Z","signature_b64":"hjf9vtXjM2Z0xJULY+7PjtogQWw4F+kodysI9IVC6KV1yjzbbP604qWTmEXBRyU48lkMQE7VoZZJS8BJUerkDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"64b31385859cb2880eafb8999f671ea8f09b535705c5f52c447ccb9e5f401b32","last_reissued_at":"2026-07-05T00:13:32.329846Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:13:32.329846Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1910.09291","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":"2026-07-05T00:13:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hre7O35Mg+GXXK9TNkstIGEozVQ/hhEgBZN01KFPb9DMPHchvH0R7OtXcG5VNtjR0iMa2hv4I5tSQMniNcvfCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T06:50:19.535537Z"},"content_sha256":"13836cb44b1f0dc13b5e882aa06c47856c02b5e28d3b1ed1c02a867ebf602d6b","schema_version":"1.0","event_id":"sha256:13836cb44b1f0dc13b5e882aa06c47856c02b5e28d3b1ed1c02a867ebf602d6b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:MSZRHBMFTSZIQDVPXCMZ6ZY6VD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measuring Danjon index and umbral magnitude of a partial lunar eclipse (July 16, 2019)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.pop-ph","authors_text":"Costantino Sigismondi","submitted_at":"2019-08-16T09:30:26Z","abstract_excerpt":"The partial lunar eclipse of July 16, 2019, left the lower part of the Moon illuminated at its maximum phase in Padova (Italy). Occulting it behind far buildings it was possible to compare the light of Jupiter and Saturn de-focused to the same diameter of the Moon with the light from the umbra. The luminosity of the eclipsed Moon as well as the Danjon index have been estimated and compared with ephemerides. January 21, 2019, July 27, 2019 and September 28, 2015 total lunar eclipses data are also published."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.09291","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/1910.09291/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":"2026-07-05T00:13:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KROIvQiOfMa8M0CfUb3yAa8jXKy0u9fhlFOD3wTwKDfxS8vybotRgAaIl0suG6BKBOzrw9tJvkIaDZrkZpNwBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T06:50:19.536286Z"},"content_sha256":"8408f1d00bdbea8ec3219eb480867a0e61218bb6d1305e9ab63a8bc21b04abc4","schema_version":"1.0","event_id":"sha256:8408f1d00bdbea8ec3219eb480867a0e61218bb6d1305e9ab63a8bc21b04abc4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MSZRHBMFTSZIQDVPXCMZ6ZY6VD/bundle.json","state_url":"https://pith.science/pith/MSZRHBMFTSZIQDVPXCMZ6ZY6VD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MSZRHBMFTSZIQDVPXCMZ6ZY6VD/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":"2026-08-16T06:50:19Z","links":{"resolver":"https://pith.science/pith/MSZRHBMFTSZIQDVPXCMZ6ZY6VD","bundle":"https://pith.science/pith/MSZRHBMFTSZIQDVPXCMZ6ZY6VD/bundle.json","state":"https://pith.science/pith/MSZRHBMFTSZIQDVPXCMZ6ZY6VD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MSZRHBMFTSZIQDVPXCMZ6ZY6VD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:MSZRHBMFTSZIQDVPXCMZ6ZY6VD","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":"8b8897006f344ddeed1589204264d78fbe82a4f15d0ed3d97fcce079849bedcb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.pop-ph","submitted_at":"2019-08-16T09:30:26Z","title_canon_sha256":"5f0e7c0ec5150f8154819685065c080175ab51b4b2ae7ea8e22c86f2a32678b7"},"schema_version":"1.0","source":{"id":"1910.09291","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.09291","created_at":"2026-07-05T00:13:32Z"},{"alias_kind":"arxiv_version","alias_value":"1910.09291v1","created_at":"2026-07-05T00:13:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.09291","created_at":"2026-07-05T00:13:32Z"},{"alias_kind":"pith_short_12","alias_value":"MSZRHBMFTSZI","created_at":"2026-07-05T00:13:32Z"},{"alias_kind":"pith_short_16","alias_value":"MSZRHBMFTSZIQDVP","created_at":"2026-07-05T00:13:32Z"},{"alias_kind":"pith_short_8","alias_value":"MSZRHBMF","created_at":"2026-07-05T00:13:32Z"}],"graph_snapshots":[{"event_id":"sha256:8408f1d00bdbea8ec3219eb480867a0e61218bb6d1305e9ab63a8bc21b04abc4","target":"graph","created_at":"2026-07-05T00:13:32Z","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/1910.09291/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The partial lunar eclipse of July 16, 2019, left the lower part of the Moon illuminated at its maximum phase in Padova (Italy). Occulting it behind far buildings it was possible to compare the light of Jupiter and Saturn de-focused to the same diameter of the Moon with the light from the umbra. The luminosity of the eclipsed Moon as well as the Danjon index have been estimated and compared with ephemerides. January 21, 2019, July 27, 2019 and September 28, 2015 total lunar eclipses data are also published.","authors_text":"Costantino Sigismondi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.pop-ph","submitted_at":"2019-08-16T09:30:26Z","title":"Measuring Danjon index and umbral magnitude of a partial lunar eclipse (July 16, 2019)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.09291","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":"sha256:13836cb44b1f0dc13b5e882aa06c47856c02b5e28d3b1ed1c02a867ebf602d6b","target":"record","created_at":"2026-07-05T00:13:32Z","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":"8b8897006f344ddeed1589204264d78fbe82a4f15d0ed3d97fcce079849bedcb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.pop-ph","submitted_at":"2019-08-16T09:30:26Z","title_canon_sha256":"5f0e7c0ec5150f8154819685065c080175ab51b4b2ae7ea8e22c86f2a32678b7"},"schema_version":"1.0","source":{"id":"1910.09291","kind":"arxiv","version":1}},"canonical_sha256":"64b31385859cb2880eafb8999f671ea8f09b535705c5f52c447ccb9e5f401b32","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"64b31385859cb2880eafb8999f671ea8f09b535705c5f52c447ccb9e5f401b32","first_computed_at":"2026-07-05T00:13:32.329846Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:13:32.329846Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hjf9vtXjM2Z0xJULY+7PjtogQWw4F+kodysI9IVC6KV1yjzbbP604qWTmEXBRyU48lkMQE7VoZZJS8BJUerkDg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:13:32.330226Z","signed_message":"canonical_sha256_bytes"},"source_id":"1910.09291","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:13836cb44b1f0dc13b5e882aa06c47856c02b5e28d3b1ed1c02a867ebf602d6b","sha256:8408f1d00bdbea8ec3219eb480867a0e61218bb6d1305e9ab63a8bc21b04abc4"],"state_sha256":"700813b150f34b2c31f73d3709802300fe1af869d157429d3a8009cc28e9b639"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OqUogjEsyz73XW239bO5do/Zx2HxutMVSDufwYR8bHCRNunddjw/PYFW0GT9cTSxc6idnPq2K4F4Ovjjqu+JCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T06:50:19.541464Z","bundle_sha256":"e255767125f63fb2d822c47a7f05e45cbfbf1eafc508a89414482448cc1142bd"}}