{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:TQNFXQMRBAY3YRXLP5MCC3JZKK","short_pith_number":"pith:TQNFXQMR","canonical_record":{"source":{"id":"astro-ph/0207252","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-07-11T17:58:40Z","cross_cats_sorted":[],"title_canon_sha256":"d910fca05189be10b8efbf091cf35a7fe35e98849f8cdd649cb67f7e10728741","abstract_canon_sha256":"76aec06a7a78c2916d4c2037845e96b0fbf1e08cca10a07bcec00c0cd9a9d9b7"},"schema_version":"1.0"},"canonical_sha256":"9c1a5bc1910831bc46eb7f58216d39528dd271760ea4f72743eabc1a3a5b6f43","source":{"kind":"arxiv","id":"astro-ph/0207252","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0207252","created_at":"2026-07-04T16:30:21Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0207252v1","created_at":"2026-07-04T16:30:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0207252","created_at":"2026-07-04T16:30:21Z"},{"alias_kind":"pith_short_12","alias_value":"TQNFXQMRBAY3","created_at":"2026-07-04T16:30:21Z"},{"alias_kind":"pith_short_16","alias_value":"TQNFXQMRBAY3YRXL","created_at":"2026-07-04T16:30:21Z"},{"alias_kind":"pith_short_8","alias_value":"TQNFXQMR","created_at":"2026-07-04T16:30:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:TQNFXQMRBAY3YRXLP5MCC3JZKK","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0207252","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-07-11T17:58:40Z","cross_cats_sorted":[],"title_canon_sha256":"d910fca05189be10b8efbf091cf35a7fe35e98849f8cdd649cb67f7e10728741","abstract_canon_sha256":"76aec06a7a78c2916d4c2037845e96b0fbf1e08cca10a07bcec00c0cd9a9d9b7"},"schema_version":"1.0"},"canonical_sha256":"9c1a5bc1910831bc46eb7f58216d39528dd271760ea4f72743eabc1a3a5b6f43","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:30:21.658827Z","signature_b64":"Bma3Owj21vtom3nqNA9cXVx1rY6FnrPfEd8Ansy3V8uDo5MJk4sfDTzYt1xwKVFt0yLS0NKTdeg82VgvCTQXCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9c1a5bc1910831bc46eb7f58216d39528dd271760ea4f72743eabc1a3a5b6f43","last_reissued_at":"2026-07-04T16:30:21.658364Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:30:21.658364Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0207252","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":"2026-07-04T16:30:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jJUJLh3d3X8t/4ShOo+nvkCkV9PAyK4FZnyx6VbHU0LpWfipF67P4n/SD6MGOHzP8n2pyTN++RuBTZ/g8Kd3Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T13:50:57.114252Z"},"content_sha256":"6f62c6c9332ffda5e140abc6d254f4c1a3332f25cb96a493e32225497972599e","schema_version":"1.0","event_id":"sha256:6f62c6c9332ffda5e140abc6d254f4c1a3332f25cb96a493e32225497972599e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:TQNFXQMRBAY3YRXLP5MCC3JZKK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Microlensing towards the Large Magellanic Cloud","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"G. Scarpetta, L. Mancini, Ph. Jetzer","submitted_at":"2002-07-11T17:58:40Z","abstract_excerpt":"The nature and the location of the lenses discovered in the microlensing surveys done so far towards the LMC remain unclear. Motivated by these questions we compute the optical depth and particularly the number of expected events for self-lensing for both the MACHO and EROS2 observations. We calculate these quantities also for other possible lens populations such as thin and thick disk and galactic spheroid. Moreover, we estimate for each of these components the corresponding average event duration and mean mass using the mass moment method. By comparing the theoretical quantities with the val"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0207252","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/astro-ph/0207252/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":"2026-07-04T16:30:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NW1EA+WJst2QGJJfp949KllfrYjK0hbHd7PLusXnG9wt5v2IuZt6oZOkwAkd/9GCDrNwgdu6iSh3dBR/GBjZBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T13:50:57.114651Z"},"content_sha256":"7bb1696fc6d45cc9f708876b9907c04a4a73253cec831238ad3f82bc0413148a","schema_version":"1.0","event_id":"sha256:7bb1696fc6d45cc9f708876b9907c04a4a73253cec831238ad3f82bc0413148a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TQNFXQMRBAY3YRXLP5MCC3JZKK/bundle.json","state_url":"https://pith.science/pith/TQNFXQMRBAY3YRXLP5MCC3JZKK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TQNFXQMRBAY3YRXLP5MCC3JZKK/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":"2026-07-07T13:50:57Z","links":{"resolver":"https://pith.science/pith/TQNFXQMRBAY3YRXLP5MCC3JZKK","bundle":"https://pith.science/pith/TQNFXQMRBAY3YRXLP5MCC3JZKK/bundle.json","state":"https://pith.science/pith/TQNFXQMRBAY3YRXLP5MCC3JZKK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TQNFXQMRBAY3YRXLP5MCC3JZKK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:TQNFXQMRBAY3YRXLP5MCC3JZKK","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":"76aec06a7a78c2916d4c2037845e96b0fbf1e08cca10a07bcec00c0cd9a9d9b7","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-07-11T17:58:40Z","title_canon_sha256":"d910fca05189be10b8efbf091cf35a7fe35e98849f8cdd649cb67f7e10728741"},"schema_version":"1.0","source":{"id":"astro-ph/0207252","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0207252","created_at":"2026-07-04T16:30:21Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0207252v1","created_at":"2026-07-04T16:30:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0207252","created_at":"2026-07-04T16:30:21Z"},{"alias_kind":"pith_short_12","alias_value":"TQNFXQMRBAY3","created_at":"2026-07-04T16:30:21Z"},{"alias_kind":"pith_short_16","alias_value":"TQNFXQMRBAY3YRXL","created_at":"2026-07-04T16:30:21Z"},{"alias_kind":"pith_short_8","alias_value":"TQNFXQMR","created_at":"2026-07-04T16:30:21Z"}],"graph_snapshots":[{"event_id":"sha256:7bb1696fc6d45cc9f708876b9907c04a4a73253cec831238ad3f82bc0413148a","target":"graph","created_at":"2026-07-04T16:30:21Z","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/astro-ph/0207252/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The nature and the location of the lenses discovered in the microlensing surveys done so far towards the LMC remain unclear. Motivated by these questions we compute the optical depth and particularly the number of expected events for self-lensing for both the MACHO and EROS2 observations. We calculate these quantities also for other possible lens populations such as thin and thick disk and galactic spheroid. Moreover, we estimate for each of these components the corresponding average event duration and mean mass using the mass moment method. By comparing the theoretical quantities with the val","authors_text":"G. Scarpetta, L. Mancini, Ph. Jetzer","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-07-11T17:58:40Z","title":"Microlensing towards the Large Magellanic Cloud"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0207252","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":"sha256:6f62c6c9332ffda5e140abc6d254f4c1a3332f25cb96a493e32225497972599e","target":"record","created_at":"2026-07-04T16:30:21Z","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":"76aec06a7a78c2916d4c2037845e96b0fbf1e08cca10a07bcec00c0cd9a9d9b7","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-07-11T17:58:40Z","title_canon_sha256":"d910fca05189be10b8efbf091cf35a7fe35e98849f8cdd649cb67f7e10728741"},"schema_version":"1.0","source":{"id":"astro-ph/0207252","kind":"arxiv","version":1}},"canonical_sha256":"9c1a5bc1910831bc46eb7f58216d39528dd271760ea4f72743eabc1a3a5b6f43","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9c1a5bc1910831bc46eb7f58216d39528dd271760ea4f72743eabc1a3a5b6f43","first_computed_at":"2026-07-04T16:30:21.658364Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:30:21.658364Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Bma3Owj21vtom3nqNA9cXVx1rY6FnrPfEd8Ansy3V8uDo5MJk4sfDTzYt1xwKVFt0yLS0NKTdeg82VgvCTQXCA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:30:21.658827Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0207252","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6f62c6c9332ffda5e140abc6d254f4c1a3332f25cb96a493e32225497972599e","sha256:7bb1696fc6d45cc9f708876b9907c04a4a73253cec831238ad3f82bc0413148a"],"state_sha256":"cac5264cfda67c7e00930a9440e570273eec83b4cf7abcb04277bab432963874"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Gjn2SrcwC/nWUjlfpQ2gWwX+VXEQjZuHGMkXMrweMKIFrEvQZsfkz85+cHqjq5jK7fJ8FKtdUaji7HVhMbsmCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T13:50:57.116822Z","bundle_sha256":"8bf9d68f778ffdce196f52a163b28900d269ed354810475659cd586ebf3881c2"}}