{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:TWXUM44ONGEJDPWCMAX5C7I5O7","short_pith_number":"pith:TWXUM44O","canonical_record":{"source":{"id":"1705.00963","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-05-02T13:32:15Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"5c355275106ce69fef870267cbe2c85104144129c0e4e63302be5ad166d4b440","abstract_canon_sha256":"7fa4aba14c9e1914128c874f3f145bc06f49b4a476b1ece570830467a610aa50"},"schema_version":"1.0"},"canonical_sha256":"9daf46738e698891bec2602fd17d1d77d81438d43ef79b63784ea621d70e88a0","source":{"kind":"arxiv","id":"1705.00963","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.00963","created_at":"2026-05-18T00:37:33Z"},{"alias_kind":"arxiv_version","alias_value":"1705.00963v2","created_at":"2026-05-18T00:37:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.00963","created_at":"2026-05-18T00:37:33Z"},{"alias_kind":"pith_short_12","alias_value":"TWXUM44ONGEJ","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"TWXUM44ONGEJDPWC","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"TWXUM44O","created_at":"2026-05-18T12:31:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:TWXUM44ONGEJDPWCMAX5C7I5O7","target":"record","payload":{"canonical_record":{"source":{"id":"1705.00963","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-05-02T13:32:15Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"5c355275106ce69fef870267cbe2c85104144129c0e4e63302be5ad166d4b440","abstract_canon_sha256":"7fa4aba14c9e1914128c874f3f145bc06f49b4a476b1ece570830467a610aa50"},"schema_version":"1.0"},"canonical_sha256":"9daf46738e698891bec2602fd17d1d77d81438d43ef79b63784ea621d70e88a0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:37:33.836188Z","signature_b64":"5Df9RcniBks346eFEnutikaBi7Zc0XgsrJQdIp+z5xbdgPky1t8GlnV4v0AeCM8L5KlA4kRsBg55jSId/Ph4Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9daf46738e698891bec2602fd17d1d77d81438d43ef79b63784ea621d70e88a0","last_reissued_at":"2026-05-18T00:37:33.835768Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:37:33.835768Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.00963","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:37:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"naH9duXi5ldbtAi2dHUkCckB2NOZFIrxf8JZlNQaD3wjABOSli4jYQ6uBTxCxfx0adADCms8Z+XpZ7CQPXjhDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T22:32:14.826189Z"},"content_sha256":"cde316c8b62d7e9cefda0a07c4dff68ddf3dd4e99a7e3996baf84ec26a5092f1","schema_version":"1.0","event_id":"sha256:cde316c8b62d7e9cefda0a07c4dff68ddf3dd4e99a7e3996baf84ec26a5092f1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:TWXUM44ONGEJDPWCMAX5C7I5O7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Unified tool to estimate Distances, Ages and Masses (UniDAM) from spectrophotometric data","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Alexey Mints, Saskia Hekker","submitted_at":"2017-05-02T13:32:15Z","abstract_excerpt":"Galactic archaeology - the study of the formation and evolution of the Milky Way by reconstructing its past from its current constituents - requires precise and accurate knowledge of stellar parameters for as many stars as possible. To achieve this a number of large spectroscopic surveys have been undertaken and are still ongoing. So far consortia carrying out the different spectroscopic surveys have used different tools to determine stellar parameters of stars from their derived effective temperatures (Teff), surface gravities (log g) and metallicities ([Fe/H]) possibly combined with photomet"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.00963","kind":"arxiv","version":2},"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":"2026-05-18T00:37:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Oz76gqWznMRC7h7kGAkvgliP3ZYoLGw0BLkZjRjWvT9iYKWkh6sM/czeEdmULf74GJqRwxQuH0ebdU7gd615Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T22:32:14.826871Z"},"content_sha256":"865c5bff0f455417fe203c992b52c353b3db3c16e307d48810d739d0981388a6","schema_version":"1.0","event_id":"sha256:865c5bff0f455417fe203c992b52c353b3db3c16e307d48810d739d0981388a6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TWXUM44ONGEJDPWCMAX5C7I5O7/bundle.json","state_url":"https://pith.science/pith/TWXUM44ONGEJDPWCMAX5C7I5O7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TWXUM44ONGEJDPWCMAX5C7I5O7/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":"2026-05-31T22:32:14Z","links":{"resolver":"https://pith.science/pith/TWXUM44ONGEJDPWCMAX5C7I5O7","bundle":"https://pith.science/pith/TWXUM44ONGEJDPWCMAX5C7I5O7/bundle.json","state":"https://pith.science/pith/TWXUM44ONGEJDPWCMAX5C7I5O7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TWXUM44ONGEJDPWCMAX5C7I5O7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:TWXUM44ONGEJDPWCMAX5C7I5O7","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":"7fa4aba14c9e1914128c874f3f145bc06f49b4a476b1ece570830467a610aa50","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-05-02T13:32:15Z","title_canon_sha256":"5c355275106ce69fef870267cbe2c85104144129c0e4e63302be5ad166d4b440"},"schema_version":"1.0","source":{"id":"1705.00963","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.00963","created_at":"2026-05-18T00:37:33Z"},{"alias_kind":"arxiv_version","alias_value":"1705.00963v2","created_at":"2026-05-18T00:37:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.00963","created_at":"2026-05-18T00:37:33Z"},{"alias_kind":"pith_short_12","alias_value":"TWXUM44ONGEJ","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_16","alias_value":"TWXUM44ONGEJDPWC","created_at":"2026-05-18T12:31:46Z"},{"alias_kind":"pith_short_8","alias_value":"TWXUM44O","created_at":"2026-05-18T12:31:46Z"}],"graph_snapshots":[{"event_id":"sha256:865c5bff0f455417fe203c992b52c353b3db3c16e307d48810d739d0981388a6","target":"graph","created_at":"2026-05-18T00:37:33Z","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":"Galactic archaeology - the study of the formation and evolution of the Milky Way by reconstructing its past from its current constituents - requires precise and accurate knowledge of stellar parameters for as many stars as possible. To achieve this a number of large spectroscopic surveys have been undertaken and are still ongoing. So far consortia carrying out the different spectroscopic surveys have used different tools to determine stellar parameters of stars from their derived effective temperatures (Teff), surface gravities (log g) and metallicities ([Fe/H]) possibly combined with photomet","authors_text":"Alexey Mints, Saskia Hekker","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-05-02T13:32:15Z","title":"A Unified tool to estimate Distances, Ages and Masses (UniDAM) from spectrophotometric data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.00963","kind":"arxiv","version":2},"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:cde316c8b62d7e9cefda0a07c4dff68ddf3dd4e99a7e3996baf84ec26a5092f1","target":"record","created_at":"2026-05-18T00:37:33Z","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":"7fa4aba14c9e1914128c874f3f145bc06f49b4a476b1ece570830467a610aa50","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-05-02T13:32:15Z","title_canon_sha256":"5c355275106ce69fef870267cbe2c85104144129c0e4e63302be5ad166d4b440"},"schema_version":"1.0","source":{"id":"1705.00963","kind":"arxiv","version":2}},"canonical_sha256":"9daf46738e698891bec2602fd17d1d77d81438d43ef79b63784ea621d70e88a0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9daf46738e698891bec2602fd17d1d77d81438d43ef79b63784ea621d70e88a0","first_computed_at":"2026-05-18T00:37:33.835768Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:37:33.835768Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5Df9RcniBks346eFEnutikaBi7Zc0XgsrJQdIp+z5xbdgPky1t8GlnV4v0AeCM8L5KlA4kRsBg55jSId/Ph4Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T00:37:33.836188Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.00963","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cde316c8b62d7e9cefda0a07c4dff68ddf3dd4e99a7e3996baf84ec26a5092f1","sha256:865c5bff0f455417fe203c992b52c353b3db3c16e307d48810d739d0981388a6"],"state_sha256":"0ba24f6fd4d1156a2d6d10ff51fdbc8c4517e81e539b9c3e07a78764ced40b7a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HoDjfiuQfLB0+iZdRopSyTvPV8PwhU6pZgQbUQwT2dp3n8uTsXjo7h7ty6ttwDBTLAZw0FdRYDuYtsiSPZpBCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T22:32:14.830954Z","bundle_sha256":"32b71687d4034e23851f083031dd4d7311e679046c6ce7db9ba6bd3f96bee1f3"}}