{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:IWV62YW6QS23JB2KM4CBUQG3LU","short_pith_number":"pith:IWV62YW6","canonical_record":{"source":{"id":"1310.2763","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-10-10T10:39:33Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"84e81022744cde466f9bd0f367c713ebb7923111fb2ed673c52fb38e30a48481","abstract_canon_sha256":"6e0724154a31bba21001d16f1f0a4184e8bc4e1a1fc64908257d2a6d5c79e4a5"},"schema_version":"1.0"},"canonical_sha256":"45abed62de84b5b4874a67041a40db5d125926b359a1e71195e5e59d520678d7","source":{"kind":"arxiv","id":"1310.2763","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.2763","created_at":"2026-05-18T03:10:46Z"},{"alias_kind":"arxiv_version","alias_value":"1310.2763v1","created_at":"2026-05-18T03:10:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.2763","created_at":"2026-05-18T03:10:46Z"},{"alias_kind":"pith_short_12","alias_value":"IWV62YW6QS23","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"IWV62YW6QS23JB2K","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"IWV62YW6","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:IWV62YW6QS23JB2KM4CBUQG3LU","target":"record","payload":{"canonical_record":{"source":{"id":"1310.2763","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-10-10T10:39:33Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"84e81022744cde466f9bd0f367c713ebb7923111fb2ed673c52fb38e30a48481","abstract_canon_sha256":"6e0724154a31bba21001d16f1f0a4184e8bc4e1a1fc64908257d2a6d5c79e4a5"},"schema_version":"1.0"},"canonical_sha256":"45abed62de84b5b4874a67041a40db5d125926b359a1e71195e5e59d520678d7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:10:46.744920Z","signature_b64":"sO69iUjGhDgfye9vJ1W+gpoG053HxZbSPXoE4r6CEAzYW0nNllj345LJwMHBxd2imaTX8iwvxxQ9Id50kEWKDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"45abed62de84b5b4874a67041a40db5d125926b359a1e71195e5e59d520678d7","last_reissued_at":"2026-05-18T03:10:46.744401Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:10:46.744401Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.2763","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":"2026-05-18T03:10:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tm79cWX4n0TXEHf9n75Jrbw8jdGVUuROEA7u5h75+mHROlyYpp7QtNZotFCbowf/2nBG3EUNoxFJuf0QzhfmBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T06:34:50.137943Z"},"content_sha256":"05226e4b289307043a43410dec06a7398f4485ecdbf3cb4e0f4887d24a778fa2","schema_version":"1.0","event_id":"sha256:05226e4b289307043a43410dec06a7398f4485ecdbf3cb4e0f4887d24a778fa2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:IWV62YW6QS23JB2KM4CBUQG3LU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Considerations on the light curve of Nova Delphini 2013","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.SR","authors_text":"Costantino Sigismondi","submitted_at":"2013-10-10T10:39:33Z","abstract_excerpt":"It is possible to evaluate the absolute magnitude of the Nova Delphini 2013 with visual observations submitted to AAVSO, following the works of Leonida Rosino at Asiago Observatory on the novae of M31. A naif interpretative model of the light curve is presented, based on the decreasing exponential law, in order to open to amateur astronomers a glimpse on the complex theoretical framework of these phenomena."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.2763","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":"2026-05-18T03:10:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lEvcJffOGX2NLykMl98aN/maXN78evQyYyZ4ArTNhSZiUdXmVTGEFno9Jr82AONcZLt7B2Ws4D3f3C7yL4aSCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T06:34:50.138416Z"},"content_sha256":"75610910b3f4a6d7c857820dab4d0834f7afdd7eca868af4f002b21fa71cfb80","schema_version":"1.0","event_id":"sha256:75610910b3f4a6d7c857820dab4d0834f7afdd7eca868af4f002b21fa71cfb80"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IWV62YW6QS23JB2KM4CBUQG3LU/bundle.json","state_url":"https://pith.science/pith/IWV62YW6QS23JB2KM4CBUQG3LU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IWV62YW6QS23JB2KM4CBUQG3LU/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":"2026-06-20T06:34:50Z","links":{"resolver":"https://pith.science/pith/IWV62YW6QS23JB2KM4CBUQG3LU","bundle":"https://pith.science/pith/IWV62YW6QS23JB2KM4CBUQG3LU/bundle.json","state":"https://pith.science/pith/IWV62YW6QS23JB2KM4CBUQG3LU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IWV62YW6QS23JB2KM4CBUQG3LU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:IWV62YW6QS23JB2KM4CBUQG3LU","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":"6e0724154a31bba21001d16f1f0a4184e8bc4e1a1fc64908257d2a6d5c79e4a5","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-10-10T10:39:33Z","title_canon_sha256":"84e81022744cde466f9bd0f367c713ebb7923111fb2ed673c52fb38e30a48481"},"schema_version":"1.0","source":{"id":"1310.2763","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.2763","created_at":"2026-05-18T03:10:46Z"},{"alias_kind":"arxiv_version","alias_value":"1310.2763v1","created_at":"2026-05-18T03:10:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.2763","created_at":"2026-05-18T03:10:46Z"},{"alias_kind":"pith_short_12","alias_value":"IWV62YW6QS23","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"IWV62YW6QS23JB2K","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"IWV62YW6","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:75610910b3f4a6d7c857820dab4d0834f7afdd7eca868af4f002b21fa71cfb80","target":"graph","created_at":"2026-05-18T03:10:46Z","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":"It is possible to evaluate the absolute magnitude of the Nova Delphini 2013 with visual observations submitted to AAVSO, following the works of Leonida Rosino at Asiago Observatory on the novae of M31. A naif interpretative model of the light curve is presented, based on the decreasing exponential law, in order to open to amateur astronomers a glimpse on the complex theoretical framework of these phenomena.","authors_text":"Costantino Sigismondi","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-10-10T10:39:33Z","title":"Considerations on the light curve of Nova Delphini 2013"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.2763","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":"sha256:05226e4b289307043a43410dec06a7398f4485ecdbf3cb4e0f4887d24a778fa2","target":"record","created_at":"2026-05-18T03:10:46Z","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":"6e0724154a31bba21001d16f1f0a4184e8bc4e1a1fc64908257d2a6d5c79e4a5","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-10-10T10:39:33Z","title_canon_sha256":"84e81022744cde466f9bd0f367c713ebb7923111fb2ed673c52fb38e30a48481"},"schema_version":"1.0","source":{"id":"1310.2763","kind":"arxiv","version":1}},"canonical_sha256":"45abed62de84b5b4874a67041a40db5d125926b359a1e71195e5e59d520678d7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"45abed62de84b5b4874a67041a40db5d125926b359a1e71195e5e59d520678d7","first_computed_at":"2026-05-18T03:10:46.744401Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:10:46.744401Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sO69iUjGhDgfye9vJ1W+gpoG053HxZbSPXoE4r6CEAzYW0nNllj345LJwMHBxd2imaTX8iwvxxQ9Id50kEWKDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:10:46.744920Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.2763","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:05226e4b289307043a43410dec06a7398f4485ecdbf3cb4e0f4887d24a778fa2","sha256:75610910b3f4a6d7c857820dab4d0834f7afdd7eca868af4f002b21fa71cfb80"],"state_sha256":"e351378af9b0ba6da2beb3076c4a8b18f0f179c65259cda66de6600f49a8951f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WUASee+YpwWBlOzAE0y05N6gMJHQEgtXAjnlRh4l3tT3VuJy5QwU6kqDMwQvJFW75YtCsBeujSZV3KKosNghDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-20T06:34:50.140553Z","bundle_sha256":"dc0d42df6e425635fbb29ede729eb6b475ee543c0aab4257f44f8c2b3be8b55f"}}