{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:SP75XOQJDAPXK4C2E5ZGCY754I","short_pith_number":"pith:SP75XOQJ","canonical_record":{"source":{"id":"2205.12892","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"econ.GN","submitted_at":"2022-05-25T16:22:38Z","cross_cats_sorted":["q-fin.EC"],"title_canon_sha256":"e3259e29f27f5b905a001d993e6b5e17c784733061bcc90a6a4c17b723631945","abstract_canon_sha256":"bd21adc0fc8359618c745b9bfbcfa07ead3be831093c5b3fbfa367a6b29f60e3"},"schema_version":"1.0"},"canonical_sha256":"93ffdbba09181f75705a27726163fde23081a4028ba436ed50497e3bf11837c9","source":{"kind":"arxiv","id":"2205.12892","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.12892","created_at":"2026-07-05T04:26:30Z"},{"alias_kind":"arxiv_version","alias_value":"2205.12892v1","created_at":"2026-07-05T04:26:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.12892","created_at":"2026-07-05T04:26:30Z"},{"alias_kind":"pith_short_12","alias_value":"SP75XOQJDAPX","created_at":"2026-07-05T04:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"SP75XOQJDAPXK4C2","created_at":"2026-07-05T04:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"SP75XOQJ","created_at":"2026-07-05T04:26:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:SP75XOQJDAPXK4C2E5ZGCY754I","target":"record","payload":{"canonical_record":{"source":{"id":"2205.12892","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"econ.GN","submitted_at":"2022-05-25T16:22:38Z","cross_cats_sorted":["q-fin.EC"],"title_canon_sha256":"e3259e29f27f5b905a001d993e6b5e17c784733061bcc90a6a4c17b723631945","abstract_canon_sha256":"bd21adc0fc8359618c745b9bfbcfa07ead3be831093c5b3fbfa367a6b29f60e3"},"schema_version":"1.0"},"canonical_sha256":"93ffdbba09181f75705a27726163fde23081a4028ba436ed50497e3bf11837c9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:26:30.555934Z","signature_b64":"hgxlZFN9koPJfqEuwMi2sDreT5VFe3OsPK585c8ERNZZWG/Bd1nUxnWb+ppm/rD6dZlRhtP9MReCCQUkZ4oGAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"93ffdbba09181f75705a27726163fde23081a4028ba436ed50497e3bf11837c9","last_reissued_at":"2026-07-05T04:26:30.555578Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:26:30.555578Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2205.12892","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":"2026-07-05T04:26:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uXPZ0VmXKdYuxf0ZHMkLxnjkk4ycAh2eCHt7yxmfdzJnnvATv8qdec74HB0SLO6kwgSYq/C4n1I52pDf+T0ZCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:17:17.722602Z"},"content_sha256":"3f5c6de5739fb9ddb06f0128f745640d9dae08a8a83085b9a37930b35073b7c7","schema_version":"1.0","event_id":"sha256:3f5c6de5739fb9ddb06f0128f745640d9dae08a8a83085b9a37930b35073b7c7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:SP75XOQJDAPXK4C2E5ZGCY754I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"American postdoctoral salaries do not account for growing disparities in cost of living","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["q-fin.EC"],"primary_cat":"econ.GN","authors_text":"Tim Sainburg","submitted_at":"2022-05-25T16:22:38Z","abstract_excerpt":"The National Institute of Health (NIH) sets postdoctoral (postdoc) trainee stipend levels that many American institutions and investigators use as a basis for postdoc salaries. Although salary standards are held constant across universities, the cost of living in those universities' cities and towns vary widely. Across non-postdoc jobs, more expensive cities pay workers higher wages that scale with an increased cost of living. This work investigates the extent to which postdoc wages account for cost-of-living differences. More than 27,000 postdoc salaries across all US universities are analyze"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.12892","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2205.12892/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T04:26:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zTxusISA86FTUw8FJreRJ0fLT0jQ+HPdwGsbNhtuEUfMRxGWWxkCFcOlT22p270RWxby0lrbCEGhIY4zAK1nBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T12:17:17.722981Z"},"content_sha256":"28646192cf2e2dc45777adb40b226d1d47e56c09c522d7a581e5432923d7534f","schema_version":"1.0","event_id":"sha256:28646192cf2e2dc45777adb40b226d1d47e56c09c522d7a581e5432923d7534f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SP75XOQJDAPXK4C2E5ZGCY754I/bundle.json","state_url":"https://pith.science/pith/SP75XOQJDAPXK4C2E5ZGCY754I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SP75XOQJDAPXK4C2E5ZGCY754I/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":"2026-07-07T12:17:17Z","links":{"resolver":"https://pith.science/pith/SP75XOQJDAPXK4C2E5ZGCY754I","bundle":"https://pith.science/pith/SP75XOQJDAPXK4C2E5ZGCY754I/bundle.json","state":"https://pith.science/pith/SP75XOQJDAPXK4C2E5ZGCY754I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SP75XOQJDAPXK4C2E5ZGCY754I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:SP75XOQJDAPXK4C2E5ZGCY754I","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":"bd21adc0fc8359618c745b9bfbcfa07ead3be831093c5b3fbfa367a6b29f60e3","cross_cats_sorted":["q-fin.EC"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"econ.GN","submitted_at":"2022-05-25T16:22:38Z","title_canon_sha256":"e3259e29f27f5b905a001d993e6b5e17c784733061bcc90a6a4c17b723631945"},"schema_version":"1.0","source":{"id":"2205.12892","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.12892","created_at":"2026-07-05T04:26:30Z"},{"alias_kind":"arxiv_version","alias_value":"2205.12892v1","created_at":"2026-07-05T04:26:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.12892","created_at":"2026-07-05T04:26:30Z"},{"alias_kind":"pith_short_12","alias_value":"SP75XOQJDAPX","created_at":"2026-07-05T04:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"SP75XOQJDAPXK4C2","created_at":"2026-07-05T04:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"SP75XOQJ","created_at":"2026-07-05T04:26:30Z"}],"graph_snapshots":[{"event_id":"sha256:28646192cf2e2dc45777adb40b226d1d47e56c09c522d7a581e5432923d7534f","target":"graph","created_at":"2026-07-05T04:26:30Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2205.12892/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The National Institute of Health (NIH) sets postdoctoral (postdoc) trainee stipend levels that many American institutions and investigators use as a basis for postdoc salaries. Although salary standards are held constant across universities, the cost of living in those universities' cities and towns vary widely. Across non-postdoc jobs, more expensive cities pay workers higher wages that scale with an increased cost of living. This work investigates the extent to which postdoc wages account for cost-of-living differences. More than 27,000 postdoc salaries across all US universities are analyze","authors_text":"Tim Sainburg","cross_cats":["q-fin.EC"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"econ.GN","submitted_at":"2022-05-25T16:22:38Z","title":"American postdoctoral salaries do not account for growing disparities in cost of living"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.12892","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":"sha256:3f5c6de5739fb9ddb06f0128f745640d9dae08a8a83085b9a37930b35073b7c7","target":"record","created_at":"2026-07-05T04:26:30Z","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":"bd21adc0fc8359618c745b9bfbcfa07ead3be831093c5b3fbfa367a6b29f60e3","cross_cats_sorted":["q-fin.EC"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"econ.GN","submitted_at":"2022-05-25T16:22:38Z","title_canon_sha256":"e3259e29f27f5b905a001d993e6b5e17c784733061bcc90a6a4c17b723631945"},"schema_version":"1.0","source":{"id":"2205.12892","kind":"arxiv","version":1}},"canonical_sha256":"93ffdbba09181f75705a27726163fde23081a4028ba436ed50497e3bf11837c9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"93ffdbba09181f75705a27726163fde23081a4028ba436ed50497e3bf11837c9","first_computed_at":"2026-07-05T04:26:30.555578Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:26:30.555578Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hgxlZFN9koPJfqEuwMi2sDreT5VFe3OsPK585c8ERNZZWG/Bd1nUxnWb+ppm/rD6dZlRhtP9MReCCQUkZ4oGAw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:26:30.555934Z","signed_message":"canonical_sha256_bytes"},"source_id":"2205.12892","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3f5c6de5739fb9ddb06f0128f745640d9dae08a8a83085b9a37930b35073b7c7","sha256:28646192cf2e2dc45777adb40b226d1d47e56c09c522d7a581e5432923d7534f"],"state_sha256":"6e815692671043b07b81df35c77e6355e3165b61d900a92bef805818e5db4b88"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/CLY01r60i37duuwuKhNyDNpE5J4WnSMrnewlGEfCkXDq864dXnLX00jUMaXJdzGxoYQ3b58KQvaVpnswso/Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T12:17:17.725049Z","bundle_sha256":"5e85fd0f6318ed8d7c58d06220c19c36c3d3aae79e4f3148ec8df22700fddb5b"}}