{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:5FKAWTR7BU5K4MNGK5IDCOTGWT","short_pith_number":"pith:5FKAWTR7","canonical_record":{"source":{"id":"0911.2003","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-11-10T21:13:49Z","cross_cats_sorted":[],"title_canon_sha256":"677663aca6168edec14706e3eb320248bb39048cd53ad36c57b55e03cc1dfb5c","abstract_canon_sha256":"731206df625fc4ff0b62d148290f2e81de72cefddff1d73b25f1f19e860713f7"},"schema_version":"1.0"},"canonical_sha256":"e9540b4e3f0d3aae31a65750313a66b4f806aa34b02226cf2a600c8f922d2c69","source":{"kind":"arxiv","id":"0911.2003","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.2003","created_at":"2026-05-18T02:34:11Z"},{"alias_kind":"arxiv_version","alias_value":"0911.2003v1","created_at":"2026-05-18T02:34:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.2003","created_at":"2026-05-18T02:34:11Z"},{"alias_kind":"pith_short_12","alias_value":"5FKAWTR7BU5K","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"5FKAWTR7BU5K4MNG","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"5FKAWTR7","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:5FKAWTR7BU5K4MNGK5IDCOTGWT","target":"record","payload":{"canonical_record":{"source":{"id":"0911.2003","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-11-10T21:13:49Z","cross_cats_sorted":[],"title_canon_sha256":"677663aca6168edec14706e3eb320248bb39048cd53ad36c57b55e03cc1dfb5c","abstract_canon_sha256":"731206df625fc4ff0b62d148290f2e81de72cefddff1d73b25f1f19e860713f7"},"schema_version":"1.0"},"canonical_sha256":"e9540b4e3f0d3aae31a65750313a66b4f806aa34b02226cf2a600c8f922d2c69","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:34:11.353536Z","signature_b64":"0gJJ4Mf/5jBvYDaTPtBk9TrIj6fe8L9TLZv8mHhYmEfruaVdlviM3pMzIlB82WjlRiGcfHrQb36fVz9qT0jMDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e9540b4e3f0d3aae31a65750313a66b4f806aa34b02226cf2a600c8f922d2c69","last_reissued_at":"2026-05-18T02:34:11.353182Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:34:11.353182Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0911.2003","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":"2026-05-18T02:34:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B6Q7fWdjCopsF9MZLQfpJL6BU0TsMulY+fFVIklxL7eNs6fvjKFVyXa/4doKqNXX45zd4sD8kGjft88tdCX1AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T02:35:30.378764Z"},"content_sha256":"a30d5a3756e0a30166cd2dee8ffed1d2f66dc224a07981489484f4a4c6d8c461","schema_version":"1.0","event_id":"sha256:a30d5a3756e0a30166cd2dee8ffed1d2f66dc224a07981489484f4a4c6d8c461"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:5FKAWTR7BU5K4MNGK5IDCOTGWT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hubble Space Telescope Observations of a Spectacular New Strong-lensing Galaxy Cluster - MACSJ1149.5+2223 at z=0.544","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alastair C. Edge, A. M. Swinbank, Cheng-Jiun Ma, David J. Sand, Eric Jullo, Graham P. Smith, Harald Ebeling, Ian Smail, Jean-Paul Kneib, Johan Richard, Marceau Limousin, Mathilde Jauzac","submitted_at":"2009-11-10T21:13:49Z","abstract_excerpt":"We present Advanced Camera for Surveys observations of MACSJ1149.5+2223, an X-ray luminous galaxy cluster at z=0.544 discovered by the Massive Cluster Survey. The data reveal at least seven multiply-imaged galaxies, three of which we have confirmed spectroscopically. One of these is a spectacular face-on spiral galaxy at z=1.491, the four images of which are gravitationally magnified by ~8<mu<~23. We identify this as an L* (M_B=-20.7), disk-dominated (B/T<~0.5) galaxy, forming stars at ~6Msol/yr. We use a robust sample of multiply-imaged galaxies to constrain a parameterized model of the clust"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.2003","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":"2026-05-18T02:34:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cPX85/vDzRhV0xtPZ5xYhU1j0dp0OUXPpXOdh44/xV0KPxJmTsffZPeRQ49o4fqd1kg+Aa+O2ADNcCo7WqCuCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T02:35:30.379164Z"},"content_sha256":"a3afb44fc2e4b39048c2b9c4283cb456a502b6700fe83836cf7e9797bd907234","schema_version":"1.0","event_id":"sha256:a3afb44fc2e4b39048c2b9c4283cb456a502b6700fe83836cf7e9797bd907234"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5FKAWTR7BU5K4MNGK5IDCOTGWT/bundle.json","state_url":"https://pith.science/pith/5FKAWTR7BU5K4MNGK5IDCOTGWT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5FKAWTR7BU5K4MNGK5IDCOTGWT/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":"2026-05-27T02:35:30Z","links":{"resolver":"https://pith.science/pith/5FKAWTR7BU5K4MNGK5IDCOTGWT","bundle":"https://pith.science/pith/5FKAWTR7BU5K4MNGK5IDCOTGWT/bundle.json","state":"https://pith.science/pith/5FKAWTR7BU5K4MNGK5IDCOTGWT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5FKAWTR7BU5K4MNGK5IDCOTGWT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:5FKAWTR7BU5K4MNGK5IDCOTGWT","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":"731206df625fc4ff0b62d148290f2e81de72cefddff1d73b25f1f19e860713f7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-11-10T21:13:49Z","title_canon_sha256":"677663aca6168edec14706e3eb320248bb39048cd53ad36c57b55e03cc1dfb5c"},"schema_version":"1.0","source":{"id":"0911.2003","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.2003","created_at":"2026-05-18T02:34:11Z"},{"alias_kind":"arxiv_version","alias_value":"0911.2003v1","created_at":"2026-05-18T02:34:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.2003","created_at":"2026-05-18T02:34:11Z"},{"alias_kind":"pith_short_12","alias_value":"5FKAWTR7BU5K","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"5FKAWTR7BU5K4MNG","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"5FKAWTR7","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:a3afb44fc2e4b39048c2b9c4283cb456a502b6700fe83836cf7e9797bd907234","target":"graph","created_at":"2026-05-18T02:34:11Z","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":"We present Advanced Camera for Surveys observations of MACSJ1149.5+2223, an X-ray luminous galaxy cluster at z=0.544 discovered by the Massive Cluster Survey. The data reveal at least seven multiply-imaged galaxies, three of which we have confirmed spectroscopically. One of these is a spectacular face-on spiral galaxy at z=1.491, the four images of which are gravitationally magnified by ~8<mu<~23. We identify this as an L* (M_B=-20.7), disk-dominated (B/T<~0.5) galaxy, forming stars at ~6Msol/yr. We use a robust sample of multiply-imaged galaxies to constrain a parameterized model of the clust","authors_text":"Alastair C. Edge, A. M. Swinbank, Cheng-Jiun Ma, David J. Sand, Eric Jullo, Graham P. Smith, Harald Ebeling, Ian Smail, Jean-Paul Kneib, Johan Richard, Marceau Limousin, Mathilde Jauzac","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-11-10T21:13:49Z","title":"Hubble Space Telescope Observations of a Spectacular New Strong-lensing Galaxy Cluster - MACSJ1149.5+2223 at z=0.544"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.2003","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:a30d5a3756e0a30166cd2dee8ffed1d2f66dc224a07981489484f4a4c6d8c461","target":"record","created_at":"2026-05-18T02:34:11Z","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":"731206df625fc4ff0b62d148290f2e81de72cefddff1d73b25f1f19e860713f7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-11-10T21:13:49Z","title_canon_sha256":"677663aca6168edec14706e3eb320248bb39048cd53ad36c57b55e03cc1dfb5c"},"schema_version":"1.0","source":{"id":"0911.2003","kind":"arxiv","version":1}},"canonical_sha256":"e9540b4e3f0d3aae31a65750313a66b4f806aa34b02226cf2a600c8f922d2c69","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e9540b4e3f0d3aae31a65750313a66b4f806aa34b02226cf2a600c8f922d2c69","first_computed_at":"2026-05-18T02:34:11.353182Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:34:11.353182Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0gJJ4Mf/5jBvYDaTPtBk9TrIj6fe8L9TLZv8mHhYmEfruaVdlviM3pMzIlB82WjlRiGcfHrQb36fVz9qT0jMDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:34:11.353536Z","signed_message":"canonical_sha256_bytes"},"source_id":"0911.2003","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a30d5a3756e0a30166cd2dee8ffed1d2f66dc224a07981489484f4a4c6d8c461","sha256:a3afb44fc2e4b39048c2b9c4283cb456a502b6700fe83836cf7e9797bd907234"],"state_sha256":"c9b0c34c76b66629e9c45a147d9146c2e8c0683e13608d8a0edeecb1fb530cd2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+5lWKt0Gtz0dkQpTeHHdMZWSy0KpXpHLxZivp9AOgQywQvfpscYxOjWVfw9ooUEmV62Vm2h8x0Zws9FaJ2C9CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T02:35:30.382203Z","bundle_sha256":"851f8665551ac5cbe1a0daaf73573d4e0704ab0895fc7c751bc27bae36937aae"}}