{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1997:6YJ6O6Q627OCGDTYPDA7AVXQ6R","short_pith_number":"pith:6YJ6O6Q6","canonical_record":{"source":{"id":"astro-ph/9702031","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-02-03T19:24:59Z","cross_cats_sorted":[],"title_canon_sha256":"606651a67962e91d4e7c4735aafb5d5ee4d63cc9feb01b88058b679cd3e0f900","abstract_canon_sha256":"d3eded6a13548ee69c4eee330edf001f1503404ab8a9de67608ba464ea39ed86"},"schema_version":"1.0"},"canonical_sha256":"f613e77a1ed7dc230e7878c1f056f0f4640e37cd5121f0d6964ceb3e2705ef77","source":{"kind":"arxiv","id":"astro-ph/9702031","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9702031","created_at":"2026-05-18T02:40:47Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9702031v1","created_at":"2026-05-18T02:40:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9702031","created_at":"2026-05-18T02:40:47Z"},{"alias_kind":"pith_short_12","alias_value":"6YJ6O6Q627OC","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"6YJ6O6Q627OCGDTY","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"6YJ6O6Q6","created_at":"2026-05-18T12:25:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1997:6YJ6O6Q627OCGDTYPDA7AVXQ6R","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9702031","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-02-03T19:24:59Z","cross_cats_sorted":[],"title_canon_sha256":"606651a67962e91d4e7c4735aafb5d5ee4d63cc9feb01b88058b679cd3e0f900","abstract_canon_sha256":"d3eded6a13548ee69c4eee330edf001f1503404ab8a9de67608ba464ea39ed86"},"schema_version":"1.0"},"canonical_sha256":"f613e77a1ed7dc230e7878c1f056f0f4640e37cd5121f0d6964ceb3e2705ef77","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:40:47.908835Z","signature_b64":"9HOj2wi6GEIsXXlSTt/buKhr/st92K9k/qpDxc4j1TsmtzGilGMQMxex6oseZwaqHSKPxhp3hwODUvJ4/phlCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f613e77a1ed7dc230e7878c1f056f0f4640e37cd5121f0d6964ceb3e2705ef77","last_reissued_at":"2026-05-18T02:40:47.908331Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:40:47.908331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9702031","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":"2026-05-18T02:40:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6J8gitpWbe7PePSngdUEUcoxzNimwVyX8Zhnpys0xt9vb12IYjKPspsYmmHGbh2OiBTmsyAruTfvUJ8zEeW+Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T01:39:00.378251Z"},"content_sha256":"8c1dcafe7de6fb17ce38b6c7f72bfc9417412c27ee75dfd63d180a54626ed257","schema_version":"1.0","event_id":"sha256:8c1dcafe7de6fb17ce38b6c7f72bfc9417412c27ee75dfd63d180a54626ed257"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1997:6YJ6O6Q627OCGDTYPDA7AVXQ6R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Resolution and Kinematics of Molecular Gas Surrounding the Cloverleaf Quasar at z=2.6 Using the Gravitational Lens","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"J. J. Carrasco, M. S. Yun, N. Z. Scoville, R. D. Blandford (California Institute of Technology)","submitted_at":"1997-02-03T19:24:59Z","abstract_excerpt":"Gravitational lenses have long been advertised as primitive telescopes, capable of magnifying cosmologically distant sources (Zwicky 1937). In this Letter, we present new 0''.9 resolution CO (7-6) observations of the z=2.56 Cloverleaf quasar (H 1413+117) and spatially resolved images. By modeling the gravitational lens, we infer a size scale of 0''.3 (~1 kpc) for the molecular gas structure surrounding the quasar, and the gas has a kinematic structure roughly consistent with a rotating disk. The observed properties of the CO emitting gas are similar to the nuclear starburst complexes found in "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9702031","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":"2026-05-18T02:40:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HNu8e9g8vaO372OXtU7eb19ZTwsXYZZl2KxNyZ7JVC3+9d3OqjSwf5y7tpoF94CLLYv3d3wDqVwZZfIsGnArCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T01:39:00.379002Z"},"content_sha256":"85535875aafbe9a9fbdd9916e049f5d5cbd81bb384019a0bc7337477e7bc2327","schema_version":"1.0","event_id":"sha256:85535875aafbe9a9fbdd9916e049f5d5cbd81bb384019a0bc7337477e7bc2327"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6YJ6O6Q627OCGDTYPDA7AVXQ6R/bundle.json","state_url":"https://pith.science/pith/6YJ6O6Q627OCGDTYPDA7AVXQ6R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6YJ6O6Q627OCGDTYPDA7AVXQ6R/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":"2026-05-26T01:39:00Z","links":{"resolver":"https://pith.science/pith/6YJ6O6Q627OCGDTYPDA7AVXQ6R","bundle":"https://pith.science/pith/6YJ6O6Q627OCGDTYPDA7AVXQ6R/bundle.json","state":"https://pith.science/pith/6YJ6O6Q627OCGDTYPDA7AVXQ6R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6YJ6O6Q627OCGDTYPDA7AVXQ6R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1997:6YJ6O6Q627OCGDTYPDA7AVXQ6R","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":"d3eded6a13548ee69c4eee330edf001f1503404ab8a9de67608ba464ea39ed86","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1997-02-03T19:24:59Z","title_canon_sha256":"606651a67962e91d4e7c4735aafb5d5ee4d63cc9feb01b88058b679cd3e0f900"},"schema_version":"1.0","source":{"id":"astro-ph/9702031","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9702031","created_at":"2026-05-18T02:40:47Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9702031v1","created_at":"2026-05-18T02:40:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9702031","created_at":"2026-05-18T02:40:47Z"},{"alias_kind":"pith_short_12","alias_value":"6YJ6O6Q627OC","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"6YJ6O6Q627OCGDTY","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"6YJ6O6Q6","created_at":"2026-05-18T12:25:48Z"}],"graph_snapshots":[{"event_id":"sha256:85535875aafbe9a9fbdd9916e049f5d5cbd81bb384019a0bc7337477e7bc2327","target":"graph","created_at":"2026-05-18T02:40:47Z","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":"Gravitational lenses have long been advertised as primitive telescopes, capable of magnifying cosmologically distant sources (Zwicky 1937). In this Letter, we present new 0''.9 resolution CO (7-6) observations of the z=2.56 Cloverleaf quasar (H 1413+117) and spatially resolved images. By modeling the gravitational lens, we infer a size scale of 0''.3 (~1 kpc) for the molecular gas structure surrounding the quasar, and the gas has a kinematic structure roughly consistent with a rotating disk. The observed properties of the CO emitting gas are similar to the nuclear starburst complexes found in ","authors_text":"J. J. Carrasco, M. S. Yun, N. Z. Scoville, R. D. Blandford (California Institute of Technology)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1997-02-03T19:24:59Z","title":"Resolution and Kinematics of Molecular Gas Surrounding the Cloverleaf Quasar at z=2.6 Using the Gravitational Lens"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9702031","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":"sha256:8c1dcafe7de6fb17ce38b6c7f72bfc9417412c27ee75dfd63d180a54626ed257","target":"record","created_at":"2026-05-18T02:40:47Z","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":"d3eded6a13548ee69c4eee330edf001f1503404ab8a9de67608ba464ea39ed86","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1997-02-03T19:24:59Z","title_canon_sha256":"606651a67962e91d4e7c4735aafb5d5ee4d63cc9feb01b88058b679cd3e0f900"},"schema_version":"1.0","source":{"id":"astro-ph/9702031","kind":"arxiv","version":1}},"canonical_sha256":"f613e77a1ed7dc230e7878c1f056f0f4640e37cd5121f0d6964ceb3e2705ef77","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f613e77a1ed7dc230e7878c1f056f0f4640e37cd5121f0d6964ceb3e2705ef77","first_computed_at":"2026-05-18T02:40:47.908331Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:40:47.908331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9HOj2wi6GEIsXXlSTt/buKhr/st92K9k/qpDxc4j1TsmtzGilGMQMxex6oseZwaqHSKPxhp3hwODUvJ4/phlCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:40:47.908835Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9702031","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8c1dcafe7de6fb17ce38b6c7f72bfc9417412c27ee75dfd63d180a54626ed257","sha256:85535875aafbe9a9fbdd9916e049f5d5cbd81bb384019a0bc7337477e7bc2327"],"state_sha256":"30e1c5c7030ee1625a549ab4c8494e3beccaf20620f8f90d016412936d5adfac"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UvbPcwe/EhT/qfo9OwHjBiJT8Cw/ryovS2HkzgUX42larAG555NKo1t4I44jI4dc8x0WBP5QshkvfWJynta2Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T01:39:00.382661Z","bundle_sha256":"62239d78c8cd9db36f05660dd5551a5bfefce9abfae37ef11fedeaf366f86292"}}