{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:RIR4NYXVAZCIZPPHXW4ZZ5HJM4","short_pith_number":"pith:RIR4NYXV","canonical_record":{"source":{"id":"1205.4724","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-05-21T20:00:06Z","cross_cats_sorted":[],"title_canon_sha256":"bd6d6e66ae4cc615a28f47fd7a1c0dab62b6659b2b4f7680491dfb3e0daf611f","abstract_canon_sha256":"5924f41a8ec130259c37f1324b293ec19e6b1b14461e6dc908d49ccce37efa9d"},"schema_version":"1.0"},"canonical_sha256":"8a23c6e2f506448cbde7bdb99cf4e96735f05075117de44ed2f228a4798c78fd","source":{"kind":"arxiv","id":"1205.4724","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.4724","created_at":"2026-05-18T01:57:24Z"},{"alias_kind":"arxiv_version","alias_value":"1205.4724v2","created_at":"2026-05-18T01:57:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.4724","created_at":"2026-05-18T01:57:24Z"},{"alias_kind":"pith_short_12","alias_value":"RIR4NYXVAZCI","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"RIR4NYXVAZCIZPPH","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"RIR4NYXV","created_at":"2026-05-18T12:27:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:RIR4NYXVAZCIZPPHXW4ZZ5HJM4","target":"record","payload":{"canonical_record":{"source":{"id":"1205.4724","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-05-21T20:00:06Z","cross_cats_sorted":[],"title_canon_sha256":"bd6d6e66ae4cc615a28f47fd7a1c0dab62b6659b2b4f7680491dfb3e0daf611f","abstract_canon_sha256":"5924f41a8ec130259c37f1324b293ec19e6b1b14461e6dc908d49ccce37efa9d"},"schema_version":"1.0"},"canonical_sha256":"8a23c6e2f506448cbde7bdb99cf4e96735f05075117de44ed2f228a4798c78fd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:57:24.839258Z","signature_b64":"jfvB8oZqJkNx2MIil6bzbttTAxfJSmvOb8cMeSSL3HW1ww50p9ivbiihBSvKB9+dhD6gQ0TX1TbESbKXV/vMAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8a23c6e2f506448cbde7bdb99cf4e96735f05075117de44ed2f228a4798c78fd","last_reissued_at":"2026-05-18T01:57:24.838825Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:57:24.838825Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1205.4724","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:57:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"80g9HUvv81Z9XrMKzW/o50DAQKoY+S5fm/og5BNA581XHCY93x7a96HK7Od82AUBCmSd696oV75C77S/MsY5Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T02:06:20.058947Z"},"content_sha256":"aaf3061a3e15c440cb261c1761196e30a44a70411a40eaec3ef3b46658bf14bb","schema_version":"1.0","event_id":"sha256:aaf3061a3e15c440cb261c1761196e30a44a70411a40eaec3ef3b46658bf14bb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:RIR4NYXVAZCIZPPHXW4ZZ5HJM4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Origin of the Microlensing Events Observed Towards the LMC and the Stellar Counterpart of the Magellanic Stream","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Abraham Loeb (CfA), Gurtina Besla (Columbia), Lars Hernquist (CfA)","submitted_at":"2012-05-21T20:00:06Z","abstract_excerpt":"We introduce a novel theoretical model to explain the long-standing puzzle of the nature of the microlensing events reported towards the Large Magellanic Cloud (LMC) by the MACHO and OGLE collaborations. We propose that a population of tidally stripped stars from the Small Magellanic Cloud (SMC) located ~4-10 kpc behind a lensing population of LMC disk stars can naturally explain the observed event durations (17-71 days), event frequencies and spatial distribution of the reported events. Differences in the event frequencies reported by the OGLE (~0.33 /yr) and MACHO (~1.75 /yr) surveys appear "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.4724","kind":"arxiv","version":2},"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":"2026-05-18T01:57:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jXa0Rfh0M5R6I9BllbSHMk9tOD4P0NVdEUAx4o8hujLJyQxRigJvywmlhgYk7CIM/VROknpstcZufyB+fHFfDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T02:06:20.059608Z"},"content_sha256":"ab38ac6e367a5b00041e4053a4637d18a5e16d43ac8d1c035545614dd1c6f131","schema_version":"1.0","event_id":"sha256:ab38ac6e367a5b00041e4053a4637d18a5e16d43ac8d1c035545614dd1c6f131"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RIR4NYXVAZCIZPPHXW4ZZ5HJM4/bundle.json","state_url":"https://pith.science/pith/RIR4NYXVAZCIZPPHXW4ZZ5HJM4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RIR4NYXVAZCIZPPHXW4ZZ5HJM4/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":"2026-06-08T02:06:20Z","links":{"resolver":"https://pith.science/pith/RIR4NYXVAZCIZPPHXW4ZZ5HJM4","bundle":"https://pith.science/pith/RIR4NYXVAZCIZPPHXW4ZZ5HJM4/bundle.json","state":"https://pith.science/pith/RIR4NYXVAZCIZPPHXW4ZZ5HJM4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RIR4NYXVAZCIZPPHXW4ZZ5HJM4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:RIR4NYXVAZCIZPPHXW4ZZ5HJM4","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":"5924f41a8ec130259c37f1324b293ec19e6b1b14461e6dc908d49ccce37efa9d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-05-21T20:00:06Z","title_canon_sha256":"bd6d6e66ae4cc615a28f47fd7a1c0dab62b6659b2b4f7680491dfb3e0daf611f"},"schema_version":"1.0","source":{"id":"1205.4724","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.4724","created_at":"2026-05-18T01:57:24Z"},{"alias_kind":"arxiv_version","alias_value":"1205.4724v2","created_at":"2026-05-18T01:57:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.4724","created_at":"2026-05-18T01:57:24Z"},{"alias_kind":"pith_short_12","alias_value":"RIR4NYXVAZCI","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"RIR4NYXVAZCIZPPH","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"RIR4NYXV","created_at":"2026-05-18T12:27:20Z"}],"graph_snapshots":[{"event_id":"sha256:ab38ac6e367a5b00041e4053a4637d18a5e16d43ac8d1c035545614dd1c6f131","target":"graph","created_at":"2026-05-18T01:57:24Z","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":"We introduce a novel theoretical model to explain the long-standing puzzle of the nature of the microlensing events reported towards the Large Magellanic Cloud (LMC) by the MACHO and OGLE collaborations. We propose that a population of tidally stripped stars from the Small Magellanic Cloud (SMC) located ~4-10 kpc behind a lensing population of LMC disk stars can naturally explain the observed event durations (17-71 days), event frequencies and spatial distribution of the reported events. Differences in the event frequencies reported by the OGLE (~0.33 /yr) and MACHO (~1.75 /yr) surveys appear ","authors_text":"Abraham Loeb (CfA), Gurtina Besla (Columbia), Lars Hernquist (CfA)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-05-21T20:00:06Z","title":"The Origin of the Microlensing Events Observed Towards the LMC and the Stellar Counterpart of the Magellanic Stream"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.4724","kind":"arxiv","version":2},"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:aaf3061a3e15c440cb261c1761196e30a44a70411a40eaec3ef3b46658bf14bb","target":"record","created_at":"2026-05-18T01:57:24Z","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":"5924f41a8ec130259c37f1324b293ec19e6b1b14461e6dc908d49ccce37efa9d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-05-21T20:00:06Z","title_canon_sha256":"bd6d6e66ae4cc615a28f47fd7a1c0dab62b6659b2b4f7680491dfb3e0daf611f"},"schema_version":"1.0","source":{"id":"1205.4724","kind":"arxiv","version":2}},"canonical_sha256":"8a23c6e2f506448cbde7bdb99cf4e96735f05075117de44ed2f228a4798c78fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8a23c6e2f506448cbde7bdb99cf4e96735f05075117de44ed2f228a4798c78fd","first_computed_at":"2026-05-18T01:57:24.838825Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:57:24.838825Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jfvB8oZqJkNx2MIil6bzbttTAxfJSmvOb8cMeSSL3HW1ww50p9ivbiihBSvKB9+dhD6gQ0TX1TbESbKXV/vMAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:57:24.839258Z","signed_message":"canonical_sha256_bytes"},"source_id":"1205.4724","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aaf3061a3e15c440cb261c1761196e30a44a70411a40eaec3ef3b46658bf14bb","sha256:ab38ac6e367a5b00041e4053a4637d18a5e16d43ac8d1c035545614dd1c6f131"],"state_sha256":"8a4e69fc70b120ac7749306c0df48a063c683dd2c3ceb338ffc5e67ba508a8b6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sEyo3tQoaGgUNMX121WF1Oz8SgAJLaGM2Tfl50n3jgIAcYzRVamVbMQn/N1gWTPayaIKoczTRV/jLNEbFlqGBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T02:06:20.063147Z","bundle_sha256":"52b505e3b71122bfd39e03c34f19a0131f9750a47351a61f7aee2b3311dfc91a"}}