{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:2AINIMOYXKMME2FB5UWCJ7IRZJ","short_pith_number":"pith:2AINIMOY","canonical_record":{"source":{"id":"1806.10532","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-06-27T15:31:47Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"e5587294989ff6471a6f3a6621e579e4c00268aad03a6e1d7790e2723b56439a","abstract_canon_sha256":"4241a1b6c69105046515f4b1e075181364b74f160210b7c1468247d9abbf53df"},"schema_version":"1.0"},"canonical_sha256":"d010d431d8ba98c268a1ed2c24fd11ca7a4ace8fb0695edc527ac97db3e07c4b","source":{"kind":"arxiv","id":"1806.10532","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.10532","created_at":"2026-05-18T00:09:11Z"},{"alias_kind":"arxiv_version","alias_value":"1806.10532v1","created_at":"2026-05-18T00:09:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.10532","created_at":"2026-05-18T00:09:11Z"},{"alias_kind":"pith_short_12","alias_value":"2AINIMOYXKMM","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"2AINIMOYXKMME2FB","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"2AINIMOY","created_at":"2026-05-18T12:31:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:2AINIMOYXKMME2FB5UWCJ7IRZJ","target":"record","payload":{"canonical_record":{"source":{"id":"1806.10532","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-06-27T15:31:47Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"e5587294989ff6471a6f3a6621e579e4c00268aad03a6e1d7790e2723b56439a","abstract_canon_sha256":"4241a1b6c69105046515f4b1e075181364b74f160210b7c1468247d9abbf53df"},"schema_version":"1.0"},"canonical_sha256":"d010d431d8ba98c268a1ed2c24fd11ca7a4ace8fb0695edc527ac97db3e07c4b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:09:11.065291Z","signature_b64":"V17AwOphmdMGrw1H55HwT05H3OxNJ3pNS18DN/jSFyvj3FyzFprDA244HicncznEq31Me3Npstv4iUuxlbAMBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d010d431d8ba98c268a1ed2c24fd11ca7a4ace8fb0695edc527ac97db3e07c4b","last_reissued_at":"2026-05-18T00:09:11.064622Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:09:11.064622Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.10532","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":"2026-05-18T00:09:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HkPnWKuTg4kH2bme1a1gFT0l/XOVWGzwG8tKtwOaLbXsRL3imGcQMimQiv/V6V9VO6fe6lWNi5j3yoDsp0fzBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T12:58:32.162830Z"},"content_sha256":"80cf8767868f7d47b222624c15bfd182ad06cf1d03232de5699a0f2683312c89","schema_version":"1.0","event_id":"sha256:80cf8767868f7d47b222624c15bfd182ad06cf1d03232de5699a0f2683312c89"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:2AINIMOYXKMME2FB5UWCJ7IRZJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Feasibility of the debris ring transit method for the solar-like star HD 107146 by an occulted galaxy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.IM","authors_text":"(2) University of Louisville, (3) Steward Observatory), B.W. Holwerda (2), D.A.J.H. Vaendel (1), G. Schneider (3) ((1) Leiden Observatory, L. van Sluijs (1), M.A. Kenworthy (1)","submitted_at":"2018-06-27T15:31:47Z","abstract_excerpt":"Occulting galaxy pairs have been used to determine the transmission and dust composition within the foreground galaxy. Observations of the nearly face-on ring-like debris disk around the solar-like star HD 107146 by HST/ACS in 2004 and HST/STIS in 2011 reveal that the debris ring is occulting an extended background galaxy over the subsequent decades. Our aim is to use 2004 HST observations of this system to model the galaxy and apply this to the 2011 observation in order to measure the transmission of the galaxy through the outer regions of the debris disk. We model the galaxy with an exponent"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.10532","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":"2026-05-18T00:09:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UFStX7jlBRLEIW0+kuvOgm43TuzUqIzqB+669sQTKAtsnl1orOBDjwE/vROUWZowV5qOFnCGMsqUcUEGqhGlAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T12:58:32.163188Z"},"content_sha256":"a7093838a67549b90720b34758241db3c5c1ef736cfdd68a06364986ce257241","schema_version":"1.0","event_id":"sha256:a7093838a67549b90720b34758241db3c5c1ef736cfdd68a06364986ce257241"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2AINIMOYXKMME2FB5UWCJ7IRZJ/bundle.json","state_url":"https://pith.science/pith/2AINIMOYXKMME2FB5UWCJ7IRZJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2AINIMOYXKMME2FB5UWCJ7IRZJ/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":"2026-06-22T12:58:32Z","links":{"resolver":"https://pith.science/pith/2AINIMOYXKMME2FB5UWCJ7IRZJ","bundle":"https://pith.science/pith/2AINIMOYXKMME2FB5UWCJ7IRZJ/bundle.json","state":"https://pith.science/pith/2AINIMOYXKMME2FB5UWCJ7IRZJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2AINIMOYXKMME2FB5UWCJ7IRZJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:2AINIMOYXKMME2FB5UWCJ7IRZJ","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":"4241a1b6c69105046515f4b1e075181364b74f160210b7c1468247d9abbf53df","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-06-27T15:31:47Z","title_canon_sha256":"e5587294989ff6471a6f3a6621e579e4c00268aad03a6e1d7790e2723b56439a"},"schema_version":"1.0","source":{"id":"1806.10532","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.10532","created_at":"2026-05-18T00:09:11Z"},{"alias_kind":"arxiv_version","alias_value":"1806.10532v1","created_at":"2026-05-18T00:09:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.10532","created_at":"2026-05-18T00:09:11Z"},{"alias_kind":"pith_short_12","alias_value":"2AINIMOYXKMM","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"2AINIMOYXKMME2FB","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"2AINIMOY","created_at":"2026-05-18T12:31:59Z"}],"graph_snapshots":[{"event_id":"sha256:a7093838a67549b90720b34758241db3c5c1ef736cfdd68a06364986ce257241","target":"graph","created_at":"2026-05-18T00:09:11Z","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":"Occulting galaxy pairs have been used to determine the transmission and dust composition within the foreground galaxy. Observations of the nearly face-on ring-like debris disk around the solar-like star HD 107146 by HST/ACS in 2004 and HST/STIS in 2011 reveal that the debris ring is occulting an extended background galaxy over the subsequent decades. Our aim is to use 2004 HST observations of this system to model the galaxy and apply this to the 2011 observation in order to measure the transmission of the galaxy through the outer regions of the debris disk. We model the galaxy with an exponent","authors_text":"(2) University of Louisville, (3) Steward Observatory), B.W. Holwerda (2), D.A.J.H. Vaendel (1), G. Schneider (3) ((1) Leiden Observatory, L. van Sluijs (1), M.A. Kenworthy (1)","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-06-27T15:31:47Z","title":"Feasibility of the debris ring transit method for the solar-like star HD 107146 by an occulted galaxy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.10532","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":"sha256:80cf8767868f7d47b222624c15bfd182ad06cf1d03232de5699a0f2683312c89","target":"record","created_at":"2026-05-18T00:09:11Z","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":"4241a1b6c69105046515f4b1e075181364b74f160210b7c1468247d9abbf53df","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-06-27T15:31:47Z","title_canon_sha256":"e5587294989ff6471a6f3a6621e579e4c00268aad03a6e1d7790e2723b56439a"},"schema_version":"1.0","source":{"id":"1806.10532","kind":"arxiv","version":1}},"canonical_sha256":"d010d431d8ba98c268a1ed2c24fd11ca7a4ace8fb0695edc527ac97db3e07c4b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d010d431d8ba98c268a1ed2c24fd11ca7a4ace8fb0695edc527ac97db3e07c4b","first_computed_at":"2026-05-18T00:09:11.064622Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:09:11.064622Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V17AwOphmdMGrw1H55HwT05H3OxNJ3pNS18DN/jSFyvj3FyzFprDA244HicncznEq31Me3Npstv4iUuxlbAMBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:09:11.065291Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.10532","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:80cf8767868f7d47b222624c15bfd182ad06cf1d03232de5699a0f2683312c89","sha256:a7093838a67549b90720b34758241db3c5c1ef736cfdd68a06364986ce257241"],"state_sha256":"16f83d1653c740f017bb69670413908de2b09463787941da8426211c4c319c5e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p/yw/1WMe7sHokMWRC5LhEp9bHzum20K47sHIaINDi1Wc00ZFc/5frXMCDxkCr8QruR/bkKnwA4BGcuLZWZNBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T12:58:32.165498Z","bundle_sha256":"79e835b3428b0d4887e4aac522b37b5f70c5d91bdc3edd7c797616a053f81cf9"}}