{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:M463CP6K253LHFDRPU57RQ2Y7G","short_pith_number":"pith:M463CP6K","canonical_record":{"source":{"id":"1502.07835","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-02-27T09:26:33Z","cross_cats_sorted":[],"title_canon_sha256":"00f09e97f32662ddfb91acd4bc122b012f0ec6c6ca31030d5e8fc6204f0355b7","abstract_canon_sha256":"829a787e130b8c030cb7ecad4badcdc533d690fd73e7a2a4193703474d6afc53"},"schema_version":"1.0"},"canonical_sha256":"673db13fcad776b394717d3bf8c358f99e1429d9e295db4ec2bef054c0e143d6","source":{"kind":"arxiv","id":"1502.07835","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.07835","created_at":"2026-05-18T02:26:02Z"},{"alias_kind":"arxiv_version","alias_value":"1502.07835v1","created_at":"2026-05-18T02:26:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.07835","created_at":"2026-05-18T02:26:02Z"},{"alias_kind":"pith_short_12","alias_value":"M463CP6K253L","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"M463CP6K253LHFDR","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"M463CP6K","created_at":"2026-05-18T12:29:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:M463CP6K253LHFDRPU57RQ2Y7G","target":"record","payload":{"canonical_record":{"source":{"id":"1502.07835","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-02-27T09:26:33Z","cross_cats_sorted":[],"title_canon_sha256":"00f09e97f32662ddfb91acd4bc122b012f0ec6c6ca31030d5e8fc6204f0355b7","abstract_canon_sha256":"829a787e130b8c030cb7ecad4badcdc533d690fd73e7a2a4193703474d6afc53"},"schema_version":"1.0"},"canonical_sha256":"673db13fcad776b394717d3bf8c358f99e1429d9e295db4ec2bef054c0e143d6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:26:02.051774Z","signature_b64":"0FIZs22wETQPPesIbZltwrdwK/Toh82HmPcSdB40YHCMP0AhxYlT2aWFumS1fojf/AjcdUapQxi9fTw2ydU8BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"673db13fcad776b394717d3bf8c358f99e1429d9e295db4ec2bef054c0e143d6","last_reissued_at":"2026-05-18T02:26:02.051232Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:26:02.051232Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.07835","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":"2026-05-18T02:26:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QCnGAnb53q4U4fDSpd6LOtVXaisS2wFRU9flkLAAUuXMr2x0FhnhqFmAQeSAL7cCtFrN7QkBwleNMjNrzNgEAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T04:59:25.181622Z"},"content_sha256":"b22b21275e4755bda4e569c9b9fa2f23e785e0e476f38ba65603f4c401933471","schema_version":"1.0","event_id":"sha256:b22b21275e4755bda4e569c9b9fa2f23e785e0e476f38ba65603f4c401933471"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:M463CP6K253LHFDRPU57RQ2Y7G","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"\"Spoon-feeding\" an AGN","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Alberto Moretti, Deborah Mainetti, Giuseppe Lodato, Monica Colpi, Paolo D'Avanzo, Phil Evans, Sergio Campana","submitted_at":"2015-02-27T09:26:33Z","abstract_excerpt":"Tidal disruption events (TDEs) occur when a star, passing too close to a massive black hole, is ripped apart by tidal forces. A less dramatic event occurs if the star orbits just outside the tidal radius, resulting in a mild stripping of mass. Thus, if a star orbits a central black hole on one of these bound eccentric orbits, weaker outbursts will occur recurring every orbital period. Thanks to five Swift observations, we observed a recent flare from the close by (92 Mpc) galaxy IC 3599, where a possible TDE was already observed in December 1990 during the Rosat All-Sky Survey. By light curve "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.07835","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":"2026-05-18T02:26:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"chCAZVs1929zD6chYs+U+m+PhDz1dLT6HVD+WZzYlpAQvN9gdsQJid0yU+qPIIwSpGAu9iH1V2TJiuRjB+0hBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T04:59:25.182327Z"},"content_sha256":"786198113d64014cdd3fe5d3c4f5f7e48c53d9e8409d6100f963ea93407c72b8","schema_version":"1.0","event_id":"sha256:786198113d64014cdd3fe5d3c4f5f7e48c53d9e8409d6100f963ea93407c72b8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M463CP6K253LHFDRPU57RQ2Y7G/bundle.json","state_url":"https://pith.science/pith/M463CP6K253LHFDRPU57RQ2Y7G/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M463CP6K253LHFDRPU57RQ2Y7G/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":"2026-06-11T04:59:25Z","links":{"resolver":"https://pith.science/pith/M463CP6K253LHFDRPU57RQ2Y7G","bundle":"https://pith.science/pith/M463CP6K253LHFDRPU57RQ2Y7G/bundle.json","state":"https://pith.science/pith/M463CP6K253LHFDRPU57RQ2Y7G/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M463CP6K253LHFDRPU57RQ2Y7G/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:M463CP6K253LHFDRPU57RQ2Y7G","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":"829a787e130b8c030cb7ecad4badcdc533d690fd73e7a2a4193703474d6afc53","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-02-27T09:26:33Z","title_canon_sha256":"00f09e97f32662ddfb91acd4bc122b012f0ec6c6ca31030d5e8fc6204f0355b7"},"schema_version":"1.0","source":{"id":"1502.07835","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.07835","created_at":"2026-05-18T02:26:02Z"},{"alias_kind":"arxiv_version","alias_value":"1502.07835v1","created_at":"2026-05-18T02:26:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.07835","created_at":"2026-05-18T02:26:02Z"},{"alias_kind":"pith_short_12","alias_value":"M463CP6K253L","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"M463CP6K253LHFDR","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"M463CP6K","created_at":"2026-05-18T12:29:32Z"}],"graph_snapshots":[{"event_id":"sha256:786198113d64014cdd3fe5d3c4f5f7e48c53d9e8409d6100f963ea93407c72b8","target":"graph","created_at":"2026-05-18T02:26:02Z","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":"Tidal disruption events (TDEs) occur when a star, passing too close to a massive black hole, is ripped apart by tidal forces. A less dramatic event occurs if the star orbits just outside the tidal radius, resulting in a mild stripping of mass. Thus, if a star orbits a central black hole on one of these bound eccentric orbits, weaker outbursts will occur recurring every orbital period. Thanks to five Swift observations, we observed a recent flare from the close by (92 Mpc) galaxy IC 3599, where a possible TDE was already observed in December 1990 during the Rosat All-Sky Survey. By light curve ","authors_text":"Alberto Moretti, Deborah Mainetti, Giuseppe Lodato, Monica Colpi, Paolo D'Avanzo, Phil Evans, Sergio Campana","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-02-27T09:26:33Z","title":"\"Spoon-feeding\" an AGN"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.07835","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:b22b21275e4755bda4e569c9b9fa2f23e785e0e476f38ba65603f4c401933471","target":"record","created_at":"2026-05-18T02:26:02Z","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":"829a787e130b8c030cb7ecad4badcdc533d690fd73e7a2a4193703474d6afc53","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-02-27T09:26:33Z","title_canon_sha256":"00f09e97f32662ddfb91acd4bc122b012f0ec6c6ca31030d5e8fc6204f0355b7"},"schema_version":"1.0","source":{"id":"1502.07835","kind":"arxiv","version":1}},"canonical_sha256":"673db13fcad776b394717d3bf8c358f99e1429d9e295db4ec2bef054c0e143d6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"673db13fcad776b394717d3bf8c358f99e1429d9e295db4ec2bef054c0e143d6","first_computed_at":"2026-05-18T02:26:02.051232Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:26:02.051232Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0FIZs22wETQPPesIbZltwrdwK/Toh82HmPcSdB40YHCMP0AhxYlT2aWFumS1fojf/AjcdUapQxi9fTw2ydU8BA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:26:02.051774Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.07835","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b22b21275e4755bda4e569c9b9fa2f23e785e0e476f38ba65603f4c401933471","sha256:786198113d64014cdd3fe5d3c4f5f7e48c53d9e8409d6100f963ea93407c72b8"],"state_sha256":"e98b2826b6220d8f26552fcb749ab834bd321f1658477b7e0e367df92abb57a2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GoQczDGcV8UT93qK0f2Cj5ZiPHFmlvJlS8bvzIQaPR0+izU574nhDDihB2bU2Xq8vwQwN2W+vhRqMxC5ZM4eCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T04:59:25.186259Z","bundle_sha256":"3d2d8131177429dab7647ba87b7f10beb6ac0858fe5c9eeb3aec952d13b36ec6"}}