{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1996:X3OADZ4VGXDN6BC3SGO6UFMQWJ","short_pith_number":"pith:X3OADZ4V","canonical_record":{"source":{"id":"astro-ph/9612182","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1996-12-18T16:18:19Z","cross_cats_sorted":[],"title_canon_sha256":"4687967a94b0236009d2bc5f0494555f1b8f1e5a5bcdd844ca30d3e1a8032261","abstract_canon_sha256":"6c756321664ad3af6db31cc8c6db57ef66ca3bd513cb54ec8cf2cd182d780e1d"},"schema_version":"1.0"},"canonical_sha256":"bedc01e79535c6df045b919dea1590b266708c21071bab9ae4eddf5f33a49043","source":{"kind":"arxiv","id":"astro-ph/9612182","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9612182","created_at":"2026-05-18T01:07:40Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9612182v2","created_at":"2026-05-18T01:07:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9612182","created_at":"2026-05-18T01:07:40Z"},{"alias_kind":"pith_short_12","alias_value":"X3OADZ4VGXDN","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"X3OADZ4VGXDN6BC3","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"X3OADZ4V","created_at":"2026-05-18T12:25:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1996:X3OADZ4VGXDN6BC3SGO6UFMQWJ","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9612182","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1996-12-18T16:18:19Z","cross_cats_sorted":[],"title_canon_sha256":"4687967a94b0236009d2bc5f0494555f1b8f1e5a5bcdd844ca30d3e1a8032261","abstract_canon_sha256":"6c756321664ad3af6db31cc8c6db57ef66ca3bd513cb54ec8cf2cd182d780e1d"},"schema_version":"1.0"},"canonical_sha256":"bedc01e79535c6df045b919dea1590b266708c21071bab9ae4eddf5f33a49043","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:40.382785Z","signature_b64":"0ptLED1ZXZIzbPvqRiaGRCDpNzzxLLzRzAYujO32JtB+GShtgH+bbmcY9jEoKNJcZigleUVf9GchW0zhzMiyAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bedc01e79535c6df045b919dea1590b266708c21071bab9ae4eddf5f33a49043","last_reissued_at":"2026-05-18T01:07:40.382334Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:40.382334Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9612182","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":"2026-05-18T01:07:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VgNvIZUx1iD5ueTw5itUkGrNe6n54J5uEgq2n0E4K16kd1rD++hUAoTDIsOLCNyWF8IqiJpfjfDKXAoH0kM+AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T02:42:10.266501Z"},"content_sha256":"8ab71d7cf7452b099abe26e08ac61061695f42927d8ce1d0e75cdf6d2f0bef6a","schema_version":"1.0","event_id":"sha256:8ab71d7cf7452b099abe26e08ac61061695f42927d8ce1d0e75cdf6d2f0bef6a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1996:X3OADZ4VGXDN6BC3SGO6UFMQWJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"HST Observations and Models of The Gravitational Lens System MG 0414+0534","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Emilio E. Falco, Irwin I. Shapiro (CfA), Joseph Lehar","submitted_at":"1996-12-18T16:18:19Z","abstract_excerpt":"Quadruple gravitational lens systems offer the possibility of measuring time delays for image pairs, microlensing effects, and extinction in distant galaxies. Observations of these systems may be used to obtain estimates of H_o and to study the various mass components of lens galaxies at high redshifts. With HST, we have observed the reddest known gravitational lens system, MG 0414+0534. We used WFPC2/PC1 to obtain deep, high-resolution images with two filters, F675W and F814W. We present a detailed analysis of all of the components, as well as macrolens models. Our main results are: (1) confi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9612182","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":"2026-05-18T01:07:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jV6inRlHDWu/Pz7qKWDvplxk7JgIOKVTMefrkvmaW39kXXKOmtLe4n5/kTh/WFkz5bjBLAbWOZuDhFp6sWP+CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T02:42:10.267212Z"},"content_sha256":"2490815d5a900ffdec4d9d768a511f5b6c0c98b5f1a6a207d9b5fe837377e187","schema_version":"1.0","event_id":"sha256:2490815d5a900ffdec4d9d768a511f5b6c0c98b5f1a6a207d9b5fe837377e187"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X3OADZ4VGXDN6BC3SGO6UFMQWJ/bundle.json","state_url":"https://pith.science/pith/X3OADZ4VGXDN6BC3SGO6UFMQWJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X3OADZ4VGXDN6BC3SGO6UFMQWJ/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":"2026-06-11T02:42:10Z","links":{"resolver":"https://pith.science/pith/X3OADZ4VGXDN6BC3SGO6UFMQWJ","bundle":"https://pith.science/pith/X3OADZ4VGXDN6BC3SGO6UFMQWJ/bundle.json","state":"https://pith.science/pith/X3OADZ4VGXDN6BC3SGO6UFMQWJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X3OADZ4VGXDN6BC3SGO6UFMQWJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1996:X3OADZ4VGXDN6BC3SGO6UFMQWJ","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":"6c756321664ad3af6db31cc8c6db57ef66ca3bd513cb54ec8cf2cd182d780e1d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1996-12-18T16:18:19Z","title_canon_sha256":"4687967a94b0236009d2bc5f0494555f1b8f1e5a5bcdd844ca30d3e1a8032261"},"schema_version":"1.0","source":{"id":"astro-ph/9612182","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9612182","created_at":"2026-05-18T01:07:40Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9612182v2","created_at":"2026-05-18T01:07:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9612182","created_at":"2026-05-18T01:07:40Z"},{"alias_kind":"pith_short_12","alias_value":"X3OADZ4VGXDN","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"X3OADZ4VGXDN6BC3","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"X3OADZ4V","created_at":"2026-05-18T12:25:48Z"}],"graph_snapshots":[{"event_id":"sha256:2490815d5a900ffdec4d9d768a511f5b6c0c98b5f1a6a207d9b5fe837377e187","target":"graph","created_at":"2026-05-18T01:07:40Z","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":"Quadruple gravitational lens systems offer the possibility of measuring time delays for image pairs, microlensing effects, and extinction in distant galaxies. Observations of these systems may be used to obtain estimates of H_o and to study the various mass components of lens galaxies at high redshifts. With HST, we have observed the reddest known gravitational lens system, MG 0414+0534. We used WFPC2/PC1 to obtain deep, high-resolution images with two filters, F675W and F814W. We present a detailed analysis of all of the components, as well as macrolens models. Our main results are: (1) confi","authors_text":"Emilio E. Falco, Irwin I. Shapiro (CfA), Joseph Lehar","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1996-12-18T16:18:19Z","title":"HST Observations and Models of The Gravitational Lens System MG 0414+0534"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9612182","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":"sha256:8ab71d7cf7452b099abe26e08ac61061695f42927d8ce1d0e75cdf6d2f0bef6a","target":"record","created_at":"2026-05-18T01:07:40Z","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":"6c756321664ad3af6db31cc8c6db57ef66ca3bd513cb54ec8cf2cd182d780e1d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1996-12-18T16:18:19Z","title_canon_sha256":"4687967a94b0236009d2bc5f0494555f1b8f1e5a5bcdd844ca30d3e1a8032261"},"schema_version":"1.0","source":{"id":"astro-ph/9612182","kind":"arxiv","version":2}},"canonical_sha256":"bedc01e79535c6df045b919dea1590b266708c21071bab9ae4eddf5f33a49043","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bedc01e79535c6df045b919dea1590b266708c21071bab9ae4eddf5f33a49043","first_computed_at":"2026-05-18T01:07:40.382334Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:40.382334Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0ptLED1ZXZIzbPvqRiaGRCDpNzzxLLzRzAYujO32JtB+GShtgH+bbmcY9jEoKNJcZigleUVf9GchW0zhzMiyAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:40.382785Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9612182","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ab71d7cf7452b099abe26e08ac61061695f42927d8ce1d0e75cdf6d2f0bef6a","sha256:2490815d5a900ffdec4d9d768a511f5b6c0c98b5f1a6a207d9b5fe837377e187"],"state_sha256":"43c48525f27e1196b591f784700f9f601bb74dcb1d6efcaa68172e2450571266"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R7tMNLucnzB7EgACKr6s1vlSNOvC6AqWhWzisTwNwuTQWqnd/O9oIxJIkdq5hGVbwceP4u+mB13kBpORvXV6AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T02:42:10.271102Z","bundle_sha256":"5d872e019250fe280af094a98862671dc5f153c861c2ffb748db7448079dacb9"}}