{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:F74L7QRNY7ZBPK2ZPW4YOHUD55","short_pith_number":"pith:F74L7QRN","canonical_record":{"source":{"id":"1903.08184","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-19T18:00:24Z","cross_cats_sorted":[],"title_canon_sha256":"eee443ec3cedbbfbed5c1b5333cf194794fefca9d38dd4b10b52d2333d4e67e7","abstract_canon_sha256":"f70eb2a5f7d4cd0fb28d88e0c11f29d93ec83ff5eddf54abc8318d335a08170d"},"schema_version":"1.0"},"canonical_sha256":"2ff8bfc22dc7f217ab597db9871e83ef7ef46e04d82aa381eb9beb02d205fa0e","source":{"kind":"arxiv","id":"1903.08184","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.08184","created_at":"2026-05-17T23:50:50Z"},{"alias_kind":"arxiv_version","alias_value":"1903.08184v1","created_at":"2026-05-17T23:50:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.08184","created_at":"2026-05-17T23:50:50Z"},{"alias_kind":"pith_short_12","alias_value":"F74L7QRNY7ZB","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"F74L7QRNY7ZBPK2Z","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"F74L7QRN","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:F74L7QRNY7ZBPK2ZPW4YOHUD55","target":"record","payload":{"canonical_record":{"source":{"id":"1903.08184","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-19T18:00:24Z","cross_cats_sorted":[],"title_canon_sha256":"eee443ec3cedbbfbed5c1b5333cf194794fefca9d38dd4b10b52d2333d4e67e7","abstract_canon_sha256":"f70eb2a5f7d4cd0fb28d88e0c11f29d93ec83ff5eddf54abc8318d335a08170d"},"schema_version":"1.0"},"canonical_sha256":"2ff8bfc22dc7f217ab597db9871e83ef7ef46e04d82aa381eb9beb02d205fa0e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:50:50.158661Z","signature_b64":"8coJIh+PViDCJObW0aj7egNeYpaM9H0fPe3WX8UYUJbDS1Rdo7lc5ntZC79I3rPduSQ0upgnODT+jdghuHZdCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ff8bfc22dc7f217ab597db9871e83ef7ef46e04d82aa381eb9beb02d205fa0e","last_reissued_at":"2026-05-17T23:50:50.158100Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:50:50.158100Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.08184","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":"2026-05-17T23:50:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hw7i5ztUbN4fwy76Vwy8UwDcIPgdmrgQVt5TIxUarUFXVNjbpum9/hM2yCKReGA4o+Jr54PX8ygbPg79VdIgBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T23:40:17.419803Z"},"content_sha256":"056da47350e01739bc74d9dc510f3cbec68c0401b87ec0f7e1ab897ddbd78c26","schema_version":"1.0","event_id":"sha256:056da47350e01739bc74d9dc510f3cbec68c0401b87ec0f7e1ab897ddbd78c26"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:F74L7QRNY7ZBPK2ZPW4YOHUD55","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing the Time Domain with High Spatial Resolution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. A. Kaurov, B. W. Miller, G. Sivo, H. Roe, J. B. Jensen, J. M. Lotz, J. O'Meara, J. P. Blakeslee, J. Scharw\\\"achter, L. Ferrarese, M. Andersen, M. E. Schwamb, M. Lemoine-Busserolle, P. Hirst, P. L. Kelly, R. Carrasco, R. J. Foley, S. A. Rodney, S. Goodsell, S. Sivanandam","submitted_at":"2019-03-19T18:00:24Z","abstract_excerpt":"Two groundbreaking new facilities will commence operations early in the 2020s and thereafter define much of the broad landscape of US optical-infrared astronomy in the remaining decade. The Large Synoptic Survey Telescope (LSST), perched atop Cerro Pachon in the Chilean Andes, will revolutionize the young field of Time Domain Astronomy through its wide-field, multi-band optical imaging survey. At the same time, the James Webb Space Telescope (JWST), orbiting at the Sun-Earth L2 Lagrange point, will provide stunningly high-resolution views of selected targets from the red end of the optical spe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.08184","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":"2026-05-17T23:50:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/zDY1o6+qWR/drw7pczKalGByN1Pdv/5/tfTjuGAfKYO+o4WtwLsThfn1ngKsqhTzb7vtidwfinWGASrmh3LAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T23:40:17.420469Z"},"content_sha256":"19b79d4ff71eee146ba4a33ea3d5b23957ae5ae24b2c67f521a3002f0f4e18aa","schema_version":"1.0","event_id":"sha256:19b79d4ff71eee146ba4a33ea3d5b23957ae5ae24b2c67f521a3002f0f4e18aa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F74L7QRNY7ZBPK2ZPW4YOHUD55/bundle.json","state_url":"https://pith.science/pith/F74L7QRNY7ZBPK2ZPW4YOHUD55/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F74L7QRNY7ZBPK2ZPW4YOHUD55/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":"2026-05-25T23:40:17Z","links":{"resolver":"https://pith.science/pith/F74L7QRNY7ZBPK2ZPW4YOHUD55","bundle":"https://pith.science/pith/F74L7QRNY7ZBPK2ZPW4YOHUD55/bundle.json","state":"https://pith.science/pith/F74L7QRNY7ZBPK2ZPW4YOHUD55/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F74L7QRNY7ZBPK2ZPW4YOHUD55/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:F74L7QRNY7ZBPK2ZPW4YOHUD55","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":"f70eb2a5f7d4cd0fb28d88e0c11f29d93ec83ff5eddf54abc8318d335a08170d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-19T18:00:24Z","title_canon_sha256":"eee443ec3cedbbfbed5c1b5333cf194794fefca9d38dd4b10b52d2333d4e67e7"},"schema_version":"1.0","source":{"id":"1903.08184","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.08184","created_at":"2026-05-17T23:50:50Z"},{"alias_kind":"arxiv_version","alias_value":"1903.08184v1","created_at":"2026-05-17T23:50:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.08184","created_at":"2026-05-17T23:50:50Z"},{"alias_kind":"pith_short_12","alias_value":"F74L7QRNY7ZB","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"F74L7QRNY7ZBPK2Z","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"F74L7QRN","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:19b79d4ff71eee146ba4a33ea3d5b23957ae5ae24b2c67f521a3002f0f4e18aa","target":"graph","created_at":"2026-05-17T23:50:50Z","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":"Two groundbreaking new facilities will commence operations early in the 2020s and thereafter define much of the broad landscape of US optical-infrared astronomy in the remaining decade. The Large Synoptic Survey Telescope (LSST), perched atop Cerro Pachon in the Chilean Andes, will revolutionize the young field of Time Domain Astronomy through its wide-field, multi-band optical imaging survey. At the same time, the James Webb Space Telescope (JWST), orbiting at the Sun-Earth L2 Lagrange point, will provide stunningly high-resolution views of selected targets from the red end of the optical spe","authors_text":"A. A. Kaurov, B. W. Miller, G. Sivo, H. Roe, J. B. Jensen, J. M. Lotz, J. O'Meara, J. P. Blakeslee, J. Scharw\\\"achter, L. Ferrarese, M. Andersen, M. E. Schwamb, M. Lemoine-Busserolle, P. Hirst, P. L. Kelly, R. Carrasco, R. J. Foley, S. A. Rodney, S. Goodsell, S. Sivanandam","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-19T18:00:24Z","title":"Probing the Time Domain with High Spatial Resolution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.08184","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":"sha256:056da47350e01739bc74d9dc510f3cbec68c0401b87ec0f7e1ab897ddbd78c26","target":"record","created_at":"2026-05-17T23:50:50Z","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":"f70eb2a5f7d4cd0fb28d88e0c11f29d93ec83ff5eddf54abc8318d335a08170d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-19T18:00:24Z","title_canon_sha256":"eee443ec3cedbbfbed5c1b5333cf194794fefca9d38dd4b10b52d2333d4e67e7"},"schema_version":"1.0","source":{"id":"1903.08184","kind":"arxiv","version":1}},"canonical_sha256":"2ff8bfc22dc7f217ab597db9871e83ef7ef46e04d82aa381eb9beb02d205fa0e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ff8bfc22dc7f217ab597db9871e83ef7ef46e04d82aa381eb9beb02d205fa0e","first_computed_at":"2026-05-17T23:50:50.158100Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:50:50.158100Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8coJIh+PViDCJObW0aj7egNeYpaM9H0fPe3WX8UYUJbDS1Rdo7lc5ntZC79I3rPduSQ0upgnODT+jdghuHZdCw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:50:50.158661Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.08184","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:056da47350e01739bc74d9dc510f3cbec68c0401b87ec0f7e1ab897ddbd78c26","sha256:19b79d4ff71eee146ba4a33ea3d5b23957ae5ae24b2c67f521a3002f0f4e18aa"],"state_sha256":"d249b437c9aefb90bcb525551fcb69c51db31e613dc5030d590266eeb795e24d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DEhD6haeMES37t+325HNpg3V/7kdo5TUqTcqvm98DiUnQaGWl5GG8T1nS72GGCJkAOUShd9HJBNsjWqcbRI6DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T23:40:17.425106Z","bundle_sha256":"557cd3d34f55fdad8b7a253731fcd821eba4ad0eb63d5d6f5534bede0f5235ed"}}