{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:4ODWRBS42DP3TZHUFABHG2E364","short_pith_number":"pith:4ODWRBS4","canonical_record":{"source":{"id":"1702.02600","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-02-08T20:06:22Z","cross_cats_sorted":[],"title_canon_sha256":"c84768984a3c63502eb6427c782e67cc537cbc6f3e5f1634bb21a7727a48ae1f","abstract_canon_sha256":"aaf5e21344f329fe75640dc1391cfd3037234588ae5600be7d419c4880bf614f"},"schema_version":"1.0"},"canonical_sha256":"e38768865cd0dfb9e4f4280273689bf70b692d1afaeace528020059809b55676","source":{"kind":"arxiv","id":"1702.02600","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.02600","created_at":"2026-05-18T00:51:03Z"},{"alias_kind":"arxiv_version","alias_value":"1702.02600v1","created_at":"2026-05-18T00:51:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.02600","created_at":"2026-05-18T00:51:03Z"},{"alias_kind":"pith_short_12","alias_value":"4ODWRBS42DP3","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_16","alias_value":"4ODWRBS42DP3TZHU","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_8","alias_value":"4ODWRBS4","created_at":"2026-05-18T12:31:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:4ODWRBS42DP3TZHUFABHG2E364","target":"record","payload":{"canonical_record":{"source":{"id":"1702.02600","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-02-08T20:06:22Z","cross_cats_sorted":[],"title_canon_sha256":"c84768984a3c63502eb6427c782e67cc537cbc6f3e5f1634bb21a7727a48ae1f","abstract_canon_sha256":"aaf5e21344f329fe75640dc1391cfd3037234588ae5600be7d419c4880bf614f"},"schema_version":"1.0"},"canonical_sha256":"e38768865cd0dfb9e4f4280273689bf70b692d1afaeace528020059809b55676","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:51:03.903952Z","signature_b64":"kEitPni9FCA3Pd7ltvm+6VjfFERYNJJvW3KMzclta6bW/iHCsU6BujVoBu/+xQ3/gQMCKJJqSYvpLFl1rLTvAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e38768865cd0dfb9e4f4280273689bf70b692d1afaeace528020059809b55676","last_reissued_at":"2026-05-18T00:51:03.903532Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:51:03.903532Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1702.02600","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":"2026-05-18T00:51:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hKqSSaKV9aakhd4jMgqLnXckVW+8JvbxG3ctaNyN6iVXTZxuVn+sqVsH9puUwYTLTEWQBQQzCoiCqxdT9H8qDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T11:48:52.039427Z"},"content_sha256":"5c8a78a600bf0915ad28cb8dc318ff078e6221dcd8efc2a2d1684e3090837b2a","schema_version":"1.0","event_id":"sha256:5c8a78a600bf0915ad28cb8dc318ff078e6221dcd8efc2a2d1684e3090837b2a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:4ODWRBS42DP3TZHUFABHG2E364","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Metacalibration: Direct Self-Calibration of Biases in Shear Measurement","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Eric Huff, Rachel Mandelbaum","submitted_at":"2017-02-08T20:06:22Z","abstract_excerpt":"One of the primary limiting sources of systematic uncertainty in forthcoming weak lensing measurements is systematic uncertainty in the quantitative relationship between the distortions due to gravitational lensing and the measurable properties of galaxy images. We present a statistically principled, general solution to this problem. Our technique infers multiplicative shear calibration parameters by modifying the actual survey data to simulate the effects of a known shear. It can be applied to any shear estimation method based on weighted averages of galaxy shape measurements, which includes "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.02600","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":"2026-05-18T00:51:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xMYe/XPOMzHQ/f7+UcOH9wVAigUQhXIXTAT0sFJ6TQGH5cNHvYSwsvj1DGFfP20ALhmz0VBbr6sWfUTDOm97Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T11:48:52.039849Z"},"content_sha256":"6ceeb9f64ebe8f07c9d32d84b7baee3b81f0f9125fde5ecdd0359d50eca80afe","schema_version":"1.0","event_id":"sha256:6ceeb9f64ebe8f07c9d32d84b7baee3b81f0f9125fde5ecdd0359d50eca80afe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4ODWRBS42DP3TZHUFABHG2E364/bundle.json","state_url":"https://pith.science/pith/4ODWRBS42DP3TZHUFABHG2E364/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4ODWRBS42DP3TZHUFABHG2E364/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":"2026-06-07T11:48:52Z","links":{"resolver":"https://pith.science/pith/4ODWRBS42DP3TZHUFABHG2E364","bundle":"https://pith.science/pith/4ODWRBS42DP3TZHUFABHG2E364/bundle.json","state":"https://pith.science/pith/4ODWRBS42DP3TZHUFABHG2E364/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4ODWRBS42DP3TZHUFABHG2E364/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:4ODWRBS42DP3TZHUFABHG2E364","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":"aaf5e21344f329fe75640dc1391cfd3037234588ae5600be7d419c4880bf614f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-02-08T20:06:22Z","title_canon_sha256":"c84768984a3c63502eb6427c782e67cc537cbc6f3e5f1634bb21a7727a48ae1f"},"schema_version":"1.0","source":{"id":"1702.02600","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.02600","created_at":"2026-05-18T00:51:03Z"},{"alias_kind":"arxiv_version","alias_value":"1702.02600v1","created_at":"2026-05-18T00:51:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.02600","created_at":"2026-05-18T00:51:03Z"},{"alias_kind":"pith_short_12","alias_value":"4ODWRBS42DP3","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_16","alias_value":"4ODWRBS42DP3TZHU","created_at":"2026-05-18T12:31:00Z"},{"alias_kind":"pith_short_8","alias_value":"4ODWRBS4","created_at":"2026-05-18T12:31:00Z"}],"graph_snapshots":[{"event_id":"sha256:6ceeb9f64ebe8f07c9d32d84b7baee3b81f0f9125fde5ecdd0359d50eca80afe","target":"graph","created_at":"2026-05-18T00:51:03Z","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":"One of the primary limiting sources of systematic uncertainty in forthcoming weak lensing measurements is systematic uncertainty in the quantitative relationship between the distortions due to gravitational lensing and the measurable properties of galaxy images. We present a statistically principled, general solution to this problem. Our technique infers multiplicative shear calibration parameters by modifying the actual survey data to simulate the effects of a known shear. It can be applied to any shear estimation method based on weighted averages of galaxy shape measurements, which includes ","authors_text":"Eric Huff, Rachel Mandelbaum","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-02-08T20:06:22Z","title":"Metacalibration: Direct Self-Calibration of Biases in Shear Measurement"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.02600","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":"sha256:5c8a78a600bf0915ad28cb8dc318ff078e6221dcd8efc2a2d1684e3090837b2a","target":"record","created_at":"2026-05-18T00:51:03Z","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":"aaf5e21344f329fe75640dc1391cfd3037234588ae5600be7d419c4880bf614f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2017-02-08T20:06:22Z","title_canon_sha256":"c84768984a3c63502eb6427c782e67cc537cbc6f3e5f1634bb21a7727a48ae1f"},"schema_version":"1.0","source":{"id":"1702.02600","kind":"arxiv","version":1}},"canonical_sha256":"e38768865cd0dfb9e4f4280273689bf70b692d1afaeace528020059809b55676","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e38768865cd0dfb9e4f4280273689bf70b692d1afaeace528020059809b55676","first_computed_at":"2026-05-18T00:51:03.903532Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:03.903532Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kEitPni9FCA3Pd7ltvm+6VjfFERYNJJvW3KMzclta6bW/iHCsU6BujVoBu/+xQ3/gQMCKJJqSYvpLFl1rLTvAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:03.903952Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.02600","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5c8a78a600bf0915ad28cb8dc318ff078e6221dcd8efc2a2d1684e3090837b2a","sha256:6ceeb9f64ebe8f07c9d32d84b7baee3b81f0f9125fde5ecdd0359d50eca80afe"],"state_sha256":"48b4c6b32729c7dd52f007c0cd20ba208a66a30870d503ca0bb689c6958c2347"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kOJAp9hLNHvT4vg6VoYENAcvJbLXrK8CYFChgj0kKNZuCkLbjzjHWr2oZNgrE6XVOlV9LHOgXI7nk48DFbppDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T11:48:52.042230Z","bundle_sha256":"c4a4424bbf7773818facacfe12f7e82ab73b22cb1d3f7dce56d0725e66554fb5"}}