{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:CP4JLXGBFTDNA5524752MGBDAJ","short_pith_number":"pith:CP4JLXGB","canonical_record":{"source":{"id":"1704.04329","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-04-14T02:07:34Z","cross_cats_sorted":[],"title_canon_sha256":"8fe2ac0e30fe616fddc71d0ea3deb8d62d2491266ef623d0fde229986c138fb7","abstract_canon_sha256":"dd951e562c6e536f34f9e3a174f8c044f5e3525577c3889daadada06910561a0"},"schema_version":"1.0"},"canonical_sha256":"13f895dcc12cc6d077bae7fba6182302574af9172a5c36236c52abdc15b73454","source":{"kind":"arxiv","id":"1704.04329","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.04329","created_at":"2026-05-18T00:46:07Z"},{"alias_kind":"arxiv_version","alias_value":"1704.04329v1","created_at":"2026-05-18T00:46:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.04329","created_at":"2026-05-18T00:46:07Z"},{"alias_kind":"pith_short_12","alias_value":"CP4JLXGBFTDN","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CP4JLXGBFTDNA552","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CP4JLXGB","created_at":"2026-05-18T12:31:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:CP4JLXGBFTDNA5524752MGBDAJ","target":"record","payload":{"canonical_record":{"source":{"id":"1704.04329","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-04-14T02:07:34Z","cross_cats_sorted":[],"title_canon_sha256":"8fe2ac0e30fe616fddc71d0ea3deb8d62d2491266ef623d0fde229986c138fb7","abstract_canon_sha256":"dd951e562c6e536f34f9e3a174f8c044f5e3525577c3889daadada06910561a0"},"schema_version":"1.0"},"canonical_sha256":"13f895dcc12cc6d077bae7fba6182302574af9172a5c36236c52abdc15b73454","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:07.388478Z","signature_b64":"4eLku5nLNTlDEu9/cYUOc0jNOvtXx+zb+tSC6DsvUxZKOT5WHOD9DjPfffZQgoxYfPStajcLJIlSlNKkai4kAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"13f895dcc12cc6d077bae7fba6182302574af9172a5c36236c52abdc15b73454","last_reissued_at":"2026-05-18T00:46:07.388014Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:07.388014Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.04329","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":"2026-05-18T00:46:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/sks/1T1+y16FHN2JkojoR6f0zs34flHE479Ww6b0YhLm4AHmH1VegbezgleBOsvm+eUN0zQHHBZXRg5taP8Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T19:11:44.387754Z"},"content_sha256":"c8520edefde2c0b73f649ef964a03bc4045e45c90bddbbade3f6dae830a1ead5","schema_version":"1.0","event_id":"sha256:c8520edefde2c0b73f649ef964a03bc4045e45c90bddbbade3f6dae830a1ead5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:CP4JLXGBFTDNA5524752MGBDAJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Test of the FLRW metric and curvature with strong lens time delays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Guo-Jian Wang, Kai Liao, Xi-Long Fan, Zhengxiang Li","submitted_at":"2017-04-14T02:07:34Z","abstract_excerpt":"We present a new model-independent strategy for testing the Friedmann-Lema\\^{\\i}tre-Robertson-Walker metric and constraining cosmic curvature, based on future time delay measurements of strongly lensed quasar-elliptical galaxy systems from the Large Synoptic Survey Telescope and supernova observations from the Dark Energy Survey. The test only relies on geometric optics. It is independent of the energy contents of the universe and the validity of the Einstein equation on cosmological scales. The study comprises two levels: testing the FLRW metric through the Distance Sum Rule and determining/c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.04329","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":"2026-05-18T00:46:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mEbgVrbGeSUQymetJjHQ2/2edGkWpcCispM6sN/BZ432Q9NilVtLarBL6STETDbhwtS0nXCNfQulm/UbDVVWCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T19:11:44.388455Z"},"content_sha256":"89dc9542833b581fec1345db97dd30f08e8067281e1117f06f1014fd2cbf771c","schema_version":"1.0","event_id":"sha256:89dc9542833b581fec1345db97dd30f08e8067281e1117f06f1014fd2cbf771c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CP4JLXGBFTDNA5524752MGBDAJ/bundle.json","state_url":"https://pith.science/pith/CP4JLXGBFTDNA5524752MGBDAJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CP4JLXGBFTDNA5524752MGBDAJ/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":"2026-05-31T19:11:44Z","links":{"resolver":"https://pith.science/pith/CP4JLXGBFTDNA5524752MGBDAJ","bundle":"https://pith.science/pith/CP4JLXGBFTDNA5524752MGBDAJ/bundle.json","state":"https://pith.science/pith/CP4JLXGBFTDNA5524752MGBDAJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CP4JLXGBFTDNA5524752MGBDAJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:CP4JLXGBFTDNA5524752MGBDAJ","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":"dd951e562c6e536f34f9e3a174f8c044f5e3525577c3889daadada06910561a0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-04-14T02:07:34Z","title_canon_sha256":"8fe2ac0e30fe616fddc71d0ea3deb8d62d2491266ef623d0fde229986c138fb7"},"schema_version":"1.0","source":{"id":"1704.04329","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.04329","created_at":"2026-05-18T00:46:07Z"},{"alias_kind":"arxiv_version","alias_value":"1704.04329v1","created_at":"2026-05-18T00:46:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.04329","created_at":"2026-05-18T00:46:07Z"},{"alias_kind":"pith_short_12","alias_value":"CP4JLXGBFTDN","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CP4JLXGBFTDNA552","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CP4JLXGB","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:89dc9542833b581fec1345db97dd30f08e8067281e1117f06f1014fd2cbf771c","target":"graph","created_at":"2026-05-18T00:46:07Z","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 a new model-independent strategy for testing the Friedmann-Lema\\^{\\i}tre-Robertson-Walker metric and constraining cosmic curvature, based on future time delay measurements of strongly lensed quasar-elliptical galaxy systems from the Large Synoptic Survey Telescope and supernova observations from the Dark Energy Survey. The test only relies on geometric optics. It is independent of the energy contents of the universe and the validity of the Einstein equation on cosmological scales. The study comprises two levels: testing the FLRW metric through the Distance Sum Rule and determining/c","authors_text":"Guo-Jian Wang, Kai Liao, Xi-Long Fan, Zhengxiang Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-04-14T02:07:34Z","title":"Test of the FLRW metric and curvature with strong lens time delays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.04329","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:c8520edefde2c0b73f649ef964a03bc4045e45c90bddbbade3f6dae830a1ead5","target":"record","created_at":"2026-05-18T00:46:07Z","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":"dd951e562c6e536f34f9e3a174f8c044f5e3525577c3889daadada06910561a0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-04-14T02:07:34Z","title_canon_sha256":"8fe2ac0e30fe616fddc71d0ea3deb8d62d2491266ef623d0fde229986c138fb7"},"schema_version":"1.0","source":{"id":"1704.04329","kind":"arxiv","version":1}},"canonical_sha256":"13f895dcc12cc6d077bae7fba6182302574af9172a5c36236c52abdc15b73454","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"13f895dcc12cc6d077bae7fba6182302574af9172a5c36236c52abdc15b73454","first_computed_at":"2026-05-18T00:46:07.388014Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:46:07.388014Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4eLku5nLNTlDEu9/cYUOc0jNOvtXx+zb+tSC6DsvUxZKOT5WHOD9DjPfffZQgoxYfPStajcLJIlSlNKkai4kAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:46:07.388478Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.04329","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c8520edefde2c0b73f649ef964a03bc4045e45c90bddbbade3f6dae830a1ead5","sha256:89dc9542833b581fec1345db97dd30f08e8067281e1117f06f1014fd2cbf771c"],"state_sha256":"ffe73857d354b81d6e249d649dd8299875f3a553cdb1045665c86d0aeeacd3d9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RjikgbbczZ/DVXhlGxQSViYcTJCmbZeuOE500qg2u7/XATRxT0ukT+JuUn1vhJWIGUrikzm7bB1MI8jbOZuZDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T19:11:44.392404Z","bundle_sha256":"9111cc154e3e8bb95f3cfb7e2842749ffb6c02e07bbb99979b4d531f20577c5e"}}