{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:UCXEP4YVBDKM2MI7FZ7ZQO3ZXN","short_pith_number":"pith:UCXEP4YV","canonical_record":{"source":{"id":"astro-ph/0506746","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-06-30T00:20:26Z","cross_cats_sorted":[],"title_canon_sha256":"cda45d655c80a9a2cf1b595129d20d868feeeb17f2f388dbe5f8d27616692c82","abstract_canon_sha256":"3c2ee106742c7ac58680dd3fd37668489453c107c55073e3461f7137aa7b7243"},"schema_version":"1.0"},"canonical_sha256":"a0ae47f31508d4cd311f2e7f983b79bb6b9aa93f1b72b0d157c3cbe63e8b273b","source":{"kind":"arxiv","id":"astro-ph/0506746","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0506746","created_at":"2026-05-18T02:50:43Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0506746v2","created_at":"2026-05-18T02:50:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0506746","created_at":"2026-05-18T02:50:43Z"},{"alias_kind":"pith_short_12","alias_value":"UCXEP4YVBDKM","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"UCXEP4YVBDKM2MI7","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"UCXEP4YV","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:UCXEP4YVBDKM2MI7FZ7ZQO3ZXN","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0506746","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-06-30T00:20:26Z","cross_cats_sorted":[],"title_canon_sha256":"cda45d655c80a9a2cf1b595129d20d868feeeb17f2f388dbe5f8d27616692c82","abstract_canon_sha256":"3c2ee106742c7ac58680dd3fd37668489453c107c55073e3461f7137aa7b7243"},"schema_version":"1.0"},"canonical_sha256":"a0ae47f31508d4cd311f2e7f983b79bb6b9aa93f1b72b0d157c3cbe63e8b273b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:50:43.539051Z","signature_b64":"WCLYvWgL1ZaYV3x/evMEjdm95ltUmnMl3y9Dpcw/NgxShaUXCEZlnpeyB8lAtJJItOHoi+JURz642zXtIcFMBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a0ae47f31508d4cd311f2e7f983b79bb6b9aa93f1b72b0d157c3cbe63e8b273b","last_reissued_at":"2026-05-18T02:50:43.538335Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:50:43.538335Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0506746","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":"2026-05-18T02:50:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"72mGb1rHB/rYeT3JJdRLd/jDHnnW//rxV9fzx9Qv9jkONDm4m6uwlfhrGvjuFgrI7OLoVRg+InoKm+poVMByBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T22:46:04.952598Z"},"content_sha256":"c1b03a9cc990388e0d025175ac37eb212b4f69fc68a13229513259a87ab8bf88","schema_version":"1.0","event_id":"sha256:c1b03a9cc990388e0d025175ac37eb212b4f69fc68a13229513259a87ab8bf88"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:UCXEP4YVBDKM2MI7FZ7ZQO3ZXN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovery of a Strongly Lensed Galaxy at z=3.9 behind a z=0.83 Galaxy Cluster","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"ESO), Ichi Tanaka (Tohoku), Keiichi Umetsu (ASIAA), Masayuki Tanaka (Tokyo), NAOJ), Nobunari Kashikawa (NAOJ), Tadayuki Kodama (NAOJ, Takako Hoshi (Meisei, Toshifumi Futamase (Tohoku)","submitted_at":"2005-06-30T00:20:26Z","abstract_excerpt":"We report the discovery and spectroscopic confirmation of three gravitationally-lensed images of a galaxy at z=3.9 in the background of a distant, rich cluster of galaxies at z=0.83, on the basis of observations with Faint Object Camera And Spectrograph (FOCAS) on the Subaru telescope. We construct a simple lens model of the cluster mass distribution based on Jee et al.'s weak lensing mass estimates from deep, high-resolution images by Advanced Camera for Surveys (ACS) on the Hubble Space Telescope. The lens model can account simultaneously for the observed image configuration and the flux rat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0506746","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":"2026-05-18T02:50:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z+O8WGwlH8JfLlxdWAZNTyU5Dayyq0Fb27/jaDi68O+cuZj0uCteFEL/CF8pCWnH97tHX9ejwnf1RXRXthwAAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T22:46:04.953077Z"},"content_sha256":"2bc30848f3fb213ab592d623072f1dbd660559e85894fe4ecb5c4c5e23ea0557","schema_version":"1.0","event_id":"sha256:2bc30848f3fb213ab592d623072f1dbd660559e85894fe4ecb5c4c5e23ea0557"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UCXEP4YVBDKM2MI7FZ7ZQO3ZXN/bundle.json","state_url":"https://pith.science/pith/UCXEP4YVBDKM2MI7FZ7ZQO3ZXN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UCXEP4YVBDKM2MI7FZ7ZQO3ZXN/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":"2026-05-30T22:46:04Z","links":{"resolver":"https://pith.science/pith/UCXEP4YVBDKM2MI7FZ7ZQO3ZXN","bundle":"https://pith.science/pith/UCXEP4YVBDKM2MI7FZ7ZQO3ZXN/bundle.json","state":"https://pith.science/pith/UCXEP4YVBDKM2MI7FZ7ZQO3ZXN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UCXEP4YVBDKM2MI7FZ7ZQO3ZXN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:UCXEP4YVBDKM2MI7FZ7ZQO3ZXN","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":"3c2ee106742c7ac58680dd3fd37668489453c107c55073e3461f7137aa7b7243","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-06-30T00:20:26Z","title_canon_sha256":"cda45d655c80a9a2cf1b595129d20d868feeeb17f2f388dbe5f8d27616692c82"},"schema_version":"1.0","source":{"id":"astro-ph/0506746","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0506746","created_at":"2026-05-18T02:50:43Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0506746v2","created_at":"2026-05-18T02:50:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0506746","created_at":"2026-05-18T02:50:43Z"},{"alias_kind":"pith_short_12","alias_value":"UCXEP4YVBDKM","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"UCXEP4YVBDKM2MI7","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"UCXEP4YV","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:2bc30848f3fb213ab592d623072f1dbd660559e85894fe4ecb5c4c5e23ea0557","target":"graph","created_at":"2026-05-18T02:50:43Z","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 report the discovery and spectroscopic confirmation of three gravitationally-lensed images of a galaxy at z=3.9 in the background of a distant, rich cluster of galaxies at z=0.83, on the basis of observations with Faint Object Camera And Spectrograph (FOCAS) on the Subaru telescope. We construct a simple lens model of the cluster mass distribution based on Jee et al.'s weak lensing mass estimates from deep, high-resolution images by Advanced Camera for Surveys (ACS) on the Hubble Space Telescope. The lens model can account simultaneously for the observed image configuration and the flux rat","authors_text":"ESO), Ichi Tanaka (Tohoku), Keiichi Umetsu (ASIAA), Masayuki Tanaka (Tokyo), NAOJ), Nobunari Kashikawa (NAOJ), Tadayuki Kodama (NAOJ, Takako Hoshi (Meisei, Toshifumi Futamase (Tohoku)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-06-30T00:20:26Z","title":"Discovery of a Strongly Lensed Galaxy at z=3.9 behind a z=0.83 Galaxy Cluster"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0506746","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:c1b03a9cc990388e0d025175ac37eb212b4f69fc68a13229513259a87ab8bf88","target":"record","created_at":"2026-05-18T02:50:43Z","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":"3c2ee106742c7ac58680dd3fd37668489453c107c55073e3461f7137aa7b7243","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-06-30T00:20:26Z","title_canon_sha256":"cda45d655c80a9a2cf1b595129d20d868feeeb17f2f388dbe5f8d27616692c82"},"schema_version":"1.0","source":{"id":"astro-ph/0506746","kind":"arxiv","version":2}},"canonical_sha256":"a0ae47f31508d4cd311f2e7f983b79bb6b9aa93f1b72b0d157c3cbe63e8b273b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a0ae47f31508d4cd311f2e7f983b79bb6b9aa93f1b72b0d157c3cbe63e8b273b","first_computed_at":"2026-05-18T02:50:43.538335Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:50:43.538335Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WCLYvWgL1ZaYV3x/evMEjdm95ltUmnMl3y9Dpcw/NgxShaUXCEZlnpeyB8lAtJJItOHoi+JURz642zXtIcFMBA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:50:43.539051Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0506746","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c1b03a9cc990388e0d025175ac37eb212b4f69fc68a13229513259a87ab8bf88","sha256:2bc30848f3fb213ab592d623072f1dbd660559e85894fe4ecb5c4c5e23ea0557"],"state_sha256":"53e4d01749cf02b54d4292fc6ebce076651d8a5d87701697f7bfbf799c1ad19a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ti9q37CLpp1Nw8sM6H0xiPffGmMPUygGcbiW+gMuKM4Lwgx73yPbZhxFiT+rRIpT6UxhjNGvSPv1TBY39mY9DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T22:46:04.955717Z","bundle_sha256":"75b5742e41ce63ae0e8aee613ad0eeba756abf977b3565e2433b2abddcb3b540"}}