{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:TCIIBY2REFSJSEJG6DV2MESWDJ","short_pith_number":"pith:TCIIBY2R","canonical_record":{"source":{"id":"1308.0351","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-01T20:45:59Z","cross_cats_sorted":[],"title_canon_sha256":"35bbc261215d55653d5b7aa63fd477db3c1b28ab7c1ece7f4d9f63f063cd9561","abstract_canon_sha256":"457f92addc338cd5b4bc8f2fc728c6103bff6e6e764a71220802109717317901"},"schema_version":"1.0"},"canonical_sha256":"989080e3512164991126f0eba612561a44c2a0196be9cc4f217aee7041961dda","source":{"kind":"arxiv","id":"1308.0351","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.0351","created_at":"2026-05-18T01:48:25Z"},{"alias_kind":"arxiv_version","alias_value":"1308.0351v1","created_at":"2026-05-18T01:48:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.0351","created_at":"2026-05-18T01:48:25Z"},{"alias_kind":"pith_short_12","alias_value":"TCIIBY2REFSJ","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"TCIIBY2REFSJSEJG","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"TCIIBY2R","created_at":"2026-05-18T12:27:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:TCIIBY2REFSJSEJG6DV2MESWDJ","target":"record","payload":{"canonical_record":{"source":{"id":"1308.0351","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-01T20:45:59Z","cross_cats_sorted":[],"title_canon_sha256":"35bbc261215d55653d5b7aa63fd477db3c1b28ab7c1ece7f4d9f63f063cd9561","abstract_canon_sha256":"457f92addc338cd5b4bc8f2fc728c6103bff6e6e764a71220802109717317901"},"schema_version":"1.0"},"canonical_sha256":"989080e3512164991126f0eba612561a44c2a0196be9cc4f217aee7041961dda","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:48:25.218546Z","signature_b64":"lp3mQrfP0R8hBXOPS++h/wAIwmu73NDcaIy8WDwkq9PcuzWvOdB3vHoAX7NRuDFgy9XQDYZqN6wkcoERPWb2BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"989080e3512164991126f0eba612561a44c2a0196be9cc4f217aee7041961dda","last_reissued_at":"2026-05-18T01:48:25.217760Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:48:25.217760Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.0351","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":"2026-05-18T01:48:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S9bYTmjmenupNnIWmIJ5ooDkptRIz8MMV2dmzv/y9huUkgfCxVH1YlHEJJ46UFvlS2p0btFZwd+ipMRTW4MgDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T13:54:12.543019Z"},"content_sha256":"c9046b0c997c45e72504fdf51e762ea1a77f966b88d863cd5e3c47a38519ebf7","schema_version":"1.0","event_id":"sha256:c9046b0c997c45e72504fdf51e762ea1a77f966b88d863cd5e3c47a38519ebf7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:TCIIBY2REFSJSEJG6DV2MESWDJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Target Selection for the Apache Point Observatory Galactic Evolution Experiment (APOGEE)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. Burton, A. E. Garcia Perez, A. Garcia Hernandez, A. Herrero, B. Andrews, B. X. Santiago, C. Allende Prieto, C. Epstein, C. H. Blake, C. O'Donnell, D. Bizyaev, D. Fabbian, D. L. Nidever, F. Hearty, G. Zasowski, H. J. Rocha Pinto, J. C. Wilson, Jennifer A. Johnson, J. Holtzman, J. Munn, J. Van Saders, K. Covey, K. Cunha, K. Jackson, K. M. Cudworth, K. Sellgren, L. Girardi, L. N. da Costa, M. A. G. Maia, M. F. Skrutskie, M. Pinsonneault, M. Schultheis, M. Shetrone, P. M. Frinchaboy, R. Deshpande, R. L. Beaton, R. P. Schiavon, R. Terrien, R. W. O'Connell, S. D. Chojnowski, S. Hasselquist, S. Mahadevan, S. R. Majewski, S. W. Fleming, Sz. Meszaros, V. Smith","submitted_at":"2013-08-01T20:45:59Z","abstract_excerpt":"The Apache Point Observatory Galactic Evolution Experiment (APOGEE) is a high-resolution infrared spectroscopic survey spanning all Galactic environments (i.e., bulge, disk, and halo), with the principal goal of constraining dynamical and chemical evolution models of the Milky Way. APOGEE takes advantage of the reduced effects of extinction at infrared wavelengths to observe the inner Galaxy and bulge at an unprecedented level of detail. The survey's broad spatial and wavelength coverage enables users of APOGEE data to address numerous Galactic structure and stellar populations issues. In this"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.0351","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":"2026-05-18T01:48:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cgw5rL5tHTBbi/YpbPte9vLGaA5IEBc9g1OFdi3tDOqS8tvx5rLe4uWlmuX0OURwoDg9D18FMGDiTUdWQyVICg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T13:54:12.543397Z"},"content_sha256":"00d3185fbb243788c7f761462590d931ce5559f966d3e42f182a239b287eaffb","schema_version":"1.0","event_id":"sha256:00d3185fbb243788c7f761462590d931ce5559f966d3e42f182a239b287eaffb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TCIIBY2REFSJSEJG6DV2MESWDJ/bundle.json","state_url":"https://pith.science/pith/TCIIBY2REFSJSEJG6DV2MESWDJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TCIIBY2REFSJSEJG6DV2MESWDJ/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":"2026-06-03T13:54:12Z","links":{"resolver":"https://pith.science/pith/TCIIBY2REFSJSEJG6DV2MESWDJ","bundle":"https://pith.science/pith/TCIIBY2REFSJSEJG6DV2MESWDJ/bundle.json","state":"https://pith.science/pith/TCIIBY2REFSJSEJG6DV2MESWDJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TCIIBY2REFSJSEJG6DV2MESWDJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:TCIIBY2REFSJSEJG6DV2MESWDJ","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":"457f92addc338cd5b4bc8f2fc728c6103bff6e6e764a71220802109717317901","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-01T20:45:59Z","title_canon_sha256":"35bbc261215d55653d5b7aa63fd477db3c1b28ab7c1ece7f4d9f63f063cd9561"},"schema_version":"1.0","source":{"id":"1308.0351","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.0351","created_at":"2026-05-18T01:48:25Z"},{"alias_kind":"arxiv_version","alias_value":"1308.0351v1","created_at":"2026-05-18T01:48:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.0351","created_at":"2026-05-18T01:48:25Z"},{"alias_kind":"pith_short_12","alias_value":"TCIIBY2REFSJ","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"TCIIBY2REFSJSEJG","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"TCIIBY2R","created_at":"2026-05-18T12:27:59Z"}],"graph_snapshots":[{"event_id":"sha256:00d3185fbb243788c7f761462590d931ce5559f966d3e42f182a239b287eaffb","target":"graph","created_at":"2026-05-18T01:48:25Z","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":"The Apache Point Observatory Galactic Evolution Experiment (APOGEE) is a high-resolution infrared spectroscopic survey spanning all Galactic environments (i.e., bulge, disk, and halo), with the principal goal of constraining dynamical and chemical evolution models of the Milky Way. APOGEE takes advantage of the reduced effects of extinction at infrared wavelengths to observe the inner Galaxy and bulge at an unprecedented level of detail. The survey's broad spatial and wavelength coverage enables users of APOGEE data to address numerous Galactic structure and stellar populations issues. In this","authors_text":"A. Burton, A. E. Garcia Perez, A. Garcia Hernandez, A. Herrero, B. Andrews, B. X. Santiago, C. Allende Prieto, C. Epstein, C. H. Blake, C. O'Donnell, D. Bizyaev, D. Fabbian, D. L. Nidever, F. Hearty, G. Zasowski, H. J. Rocha Pinto, J. C. Wilson, Jennifer A. Johnson, J. Holtzman, J. Munn, J. Van Saders, K. Covey, K. Cunha, K. Jackson, K. M. Cudworth, K. Sellgren, L. Girardi, L. N. da Costa, M. A. G. Maia, M. F. Skrutskie, M. Pinsonneault, M. Schultheis, M. Shetrone, P. M. Frinchaboy, R. Deshpande, R. L. Beaton, R. P. Schiavon, R. Terrien, R. W. O'Connell, S. D. Chojnowski, S. Hasselquist, S. Mahadevan, S. R. Majewski, S. W. Fleming, Sz. Meszaros, V. Smith","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-01T20:45:59Z","title":"Target Selection for the Apache Point Observatory Galactic Evolution Experiment (APOGEE)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.0351","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:c9046b0c997c45e72504fdf51e762ea1a77f966b88d863cd5e3c47a38519ebf7","target":"record","created_at":"2026-05-18T01:48:25Z","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":"457f92addc338cd5b4bc8f2fc728c6103bff6e6e764a71220802109717317901","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-08-01T20:45:59Z","title_canon_sha256":"35bbc261215d55653d5b7aa63fd477db3c1b28ab7c1ece7f4d9f63f063cd9561"},"schema_version":"1.0","source":{"id":"1308.0351","kind":"arxiv","version":1}},"canonical_sha256":"989080e3512164991126f0eba612561a44c2a0196be9cc4f217aee7041961dda","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"989080e3512164991126f0eba612561a44c2a0196be9cc4f217aee7041961dda","first_computed_at":"2026-05-18T01:48:25.217760Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:48:25.217760Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lp3mQrfP0R8hBXOPS++h/wAIwmu73NDcaIy8WDwkq9PcuzWvOdB3vHoAX7NRuDFgy9XQDYZqN6wkcoERPWb2BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:48:25.218546Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.0351","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c9046b0c997c45e72504fdf51e762ea1a77f966b88d863cd5e3c47a38519ebf7","sha256:00d3185fbb243788c7f761462590d931ce5559f966d3e42f182a239b287eaffb"],"state_sha256":"b8817e76a347acfdc3107f9ebf40f6cba8dc4c536f1bd5726176c364e017c3e3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T6AnAHlUToWcrVmIryYfOmnb0Z8gZKAxNt4v5b3DCPfjP2rLKXMlTV3Wla8Nrm+Sy3vpMKfnSsTjZqvTyZ3yDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T13:54:12.545403Z","bundle_sha256":"72421950ef1197171e8a979f7324bf7ef5d52c1042a5faca4986e0eae1adab78"}}