{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:A2THBPNTZXCVD6HY67LPXA3NGS","short_pith_number":"pith:A2THBPNT","canonical_record":{"source":{"id":"1811.00023","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-10-31T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"b3c5b5d6af70fae648053a67b2c6da537e519aefbc67bbc9e28fd97966643958","abstract_canon_sha256":"ee90e1d4e8ad9fbcf493ce2c3049c6df48ea2383568a311ef5715539ff8121a9"},"schema_version":"1.0"},"canonical_sha256":"06a670bdb3cdc551f8f8f7d6fb836d349f8c83fbbddfb1f6ff69415b002e1aae","source":{"kind":"arxiv","id":"1811.00023","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.00023","created_at":"2026-05-17T23:54:15Z"},{"alias_kind":"arxiv_version","alias_value":"1811.00023v2","created_at":"2026-05-17T23:54:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.00023","created_at":"2026-05-17T23:54:15Z"},{"alias_kind":"pith_short_12","alias_value":"A2THBPNTZXCV","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"A2THBPNTZXCVD6HY","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"A2THBPNT","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:A2THBPNTZXCVD6HY67LPXA3NGS","target":"record","payload":{"canonical_record":{"source":{"id":"1811.00023","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-10-31T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"b3c5b5d6af70fae648053a67b2c6da537e519aefbc67bbc9e28fd97966643958","abstract_canon_sha256":"ee90e1d4e8ad9fbcf493ce2c3049c6df48ea2383568a311ef5715539ff8121a9"},"schema_version":"1.0"},"canonical_sha256":"06a670bdb3cdc551f8f8f7d6fb836d349f8c83fbbddfb1f6ff69415b002e1aae","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:15.806297Z","signature_b64":"S9GdeUySOuxP4CYV852J87mNtfGqmF1kQ4KJlSs1YLgyKzbk+0y1CzQaW4OjzeUtlpzoL1ZobHGwiLywmL0jAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"06a670bdb3cdc551f8f8f7d6fb836d349f8c83fbbddfb1f6ff69415b002e1aae","last_reissued_at":"2026-05-17T23:54:15.805853Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:15.805853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.00023","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":"2026-05-17T23:54:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wVMx4KXzDSt0Gc2omJ1nYQfDR6OiF0RcvvRirTfe9hinlN0/I3pvofXJ4A19BDQTpZzY4GM3Ej4X/KvZdTAvDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T16:34:40.357305Z"},"content_sha256":"54ea6057435709aaaf66139cb92481c8f6dc0f687d2d7cc8f451aa5312b5a77d","schema_version":"1.0","event_id":"sha256:54ea6057435709aaaf66139cb92481c8f6dc0f687d2d7cc8f451aa5312b5a77d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:A2THBPNTZXCVD6HY67LPXA3NGS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Origin of 1I/'Oumuamua. II. An ejected exo-Oort cloud object?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Amaya Moro-Mart\\'in","submitted_at":"2018-10-31T18:00:02Z","abstract_excerpt":"1I/'Oumuamua is the first detected interstellar interloper. We test the hypothesis that it is representative of a background population of exo-Oort cloud objects ejected under the effect of post-main sequence mass loss and stellar encounters. We do this by comparing the cumulative number density of interstellar objects inferred from the detection of 1I/'Oumuamua to that expected from these two clearing processes. We consider the 0.08--8 M$_{\\odot}$ mass range, take into account the dependencies with stellar mass, Galactocentric distance, and evolutionary state, and consider a wide range of siz"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.00023","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":"2026-05-17T23:54:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uO0w77O7BEonlisJcBjzCtCbLWO/uAye5jyu8IBTUo0KHpZ90e0i1cvN9QYi4MZRTH49J7qxoMWdF39TTWOxBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T16:34:40.358007Z"},"content_sha256":"5b2dc93c4d1233e9ed706c14b040aac5f93548331890777831c624cdbe164f01","schema_version":"1.0","event_id":"sha256:5b2dc93c4d1233e9ed706c14b040aac5f93548331890777831c624cdbe164f01"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A2THBPNTZXCVD6HY67LPXA3NGS/bundle.json","state_url":"https://pith.science/pith/A2THBPNTZXCVD6HY67LPXA3NGS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A2THBPNTZXCVD6HY67LPXA3NGS/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":"2026-05-26T16:34:40Z","links":{"resolver":"https://pith.science/pith/A2THBPNTZXCVD6HY67LPXA3NGS","bundle":"https://pith.science/pith/A2THBPNTZXCVD6HY67LPXA3NGS/bundle.json","state":"https://pith.science/pith/A2THBPNTZXCVD6HY67LPXA3NGS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A2THBPNTZXCVD6HY67LPXA3NGS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:A2THBPNTZXCVD6HY67LPXA3NGS","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":"ee90e1d4e8ad9fbcf493ce2c3049c6df48ea2383568a311ef5715539ff8121a9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-10-31T18:00:02Z","title_canon_sha256":"b3c5b5d6af70fae648053a67b2c6da537e519aefbc67bbc9e28fd97966643958"},"schema_version":"1.0","source":{"id":"1811.00023","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.00023","created_at":"2026-05-17T23:54:15Z"},{"alias_kind":"arxiv_version","alias_value":"1811.00023v2","created_at":"2026-05-17T23:54:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.00023","created_at":"2026-05-17T23:54:15Z"},{"alias_kind":"pith_short_12","alias_value":"A2THBPNTZXCV","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"A2THBPNTZXCVD6HY","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"A2THBPNT","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:5b2dc93c4d1233e9ed706c14b040aac5f93548331890777831c624cdbe164f01","target":"graph","created_at":"2026-05-17T23:54:15Z","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":"1I/'Oumuamua is the first detected interstellar interloper. We test the hypothesis that it is representative of a background population of exo-Oort cloud objects ejected under the effect of post-main sequence mass loss and stellar encounters. We do this by comparing the cumulative number density of interstellar objects inferred from the detection of 1I/'Oumuamua to that expected from these two clearing processes. We consider the 0.08--8 M$_{\\odot}$ mass range, take into account the dependencies with stellar mass, Galactocentric distance, and evolutionary state, and consider a wide range of siz","authors_text":"Amaya Moro-Mart\\'in","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-10-31T18:00:02Z","title":"Origin of 1I/'Oumuamua. II. An ejected exo-Oort cloud object?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.00023","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":"sha256:54ea6057435709aaaf66139cb92481c8f6dc0f687d2d7cc8f451aa5312b5a77d","target":"record","created_at":"2026-05-17T23:54:15Z","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":"ee90e1d4e8ad9fbcf493ce2c3049c6df48ea2383568a311ef5715539ff8121a9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-10-31T18:00:02Z","title_canon_sha256":"b3c5b5d6af70fae648053a67b2c6da537e519aefbc67bbc9e28fd97966643958"},"schema_version":"1.0","source":{"id":"1811.00023","kind":"arxiv","version":2}},"canonical_sha256":"06a670bdb3cdc551f8f8f7d6fb836d349f8c83fbbddfb1f6ff69415b002e1aae","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"06a670bdb3cdc551f8f8f7d6fb836d349f8c83fbbddfb1f6ff69415b002e1aae","first_computed_at":"2026-05-17T23:54:15.805853Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:15.805853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"S9GdeUySOuxP4CYV852J87mNtfGqmF1kQ4KJlSs1YLgyKzbk+0y1CzQaW4OjzeUtlpzoL1ZobHGwiLywmL0jAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:15.806297Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.00023","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:54ea6057435709aaaf66139cb92481c8f6dc0f687d2d7cc8f451aa5312b5a77d","sha256:5b2dc93c4d1233e9ed706c14b040aac5f93548331890777831c624cdbe164f01"],"state_sha256":"a2e4a101f13c43e8bf98889135d99af14e313d7e2b96a6c5cec6fedf0be0f8da"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hu/WUQssPGAF9cN2T1iKhLAuF7fNDbnHhu3bolUI04IV5wyLMU3b3vSeg36Iv7ek7AkSSC6aRzzp83L/bS5PBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T16:34:40.360671Z","bundle_sha256":"db93453394d9512adee43f0091f73b6453496fa9512a6941db374a5e41d13f24"}}