{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:72NKME77V25TIV7AJMJVDLPL57","short_pith_number":"pith:72NKME77","canonical_record":{"source":{"id":"1012.3766","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-16T22:05:26Z","cross_cats_sorted":[],"title_canon_sha256":"49d0ca63d400759ea45b263b61652b0b28f201720a42530958b0e7a2a8b7a6d8","abstract_canon_sha256":"7a94eedbe32850cfdef953f2f2285466fff6518b3b1fa5d7735480c73784b187"},"schema_version":"1.0"},"canonical_sha256":"fe9aa613ffaebb3457e04b1351adebefe6031501482861a03e333c014e3b0524","source":{"kind":"arxiv","id":"1012.3766","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.3766","created_at":"2026-05-18T04:33:03Z"},{"alias_kind":"arxiv_version","alias_value":"1012.3766v1","created_at":"2026-05-18T04:33:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.3766","created_at":"2026-05-18T04:33:03Z"},{"alias_kind":"pith_short_12","alias_value":"72NKME77V25T","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"72NKME77V25TIV7A","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"72NKME77","created_at":"2026-05-18T12:26:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:72NKME77V25TIV7AJMJVDLPL57","target":"record","payload":{"canonical_record":{"source":{"id":"1012.3766","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-16T22:05:26Z","cross_cats_sorted":[],"title_canon_sha256":"49d0ca63d400759ea45b263b61652b0b28f201720a42530958b0e7a2a8b7a6d8","abstract_canon_sha256":"7a94eedbe32850cfdef953f2f2285466fff6518b3b1fa5d7735480c73784b187"},"schema_version":"1.0"},"canonical_sha256":"fe9aa613ffaebb3457e04b1351adebefe6031501482861a03e333c014e3b0524","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:33:03.898848Z","signature_b64":"4yhm22NotAbvItjXlQd0SkrUAVpAMN51v7gYEoPJJvrnZdQgE1o2FNWOF9gkrN64K18rYeqzMkmVNJZxbrlVAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fe9aa613ffaebb3457e04b1351adebefe6031501482861a03e333c014e3b0524","last_reissued_at":"2026-05-18T04:33:03.898227Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:33:03.898227Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1012.3766","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":"2026-05-18T04:33:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D820rL+9shCmUDJcS2GaUtrItFS0Ce3PmChX9GxD8aRRKYo0IGDHeVARO/y1+jC1a58wUdqRQWa+mfyyp96pCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T15:49:59.978119Z"},"content_sha256":"bf733fe3c86b55c13c088a362333e4db9c093b94aeb80b683dd3251b7d1fa2d5","schema_version":"1.0","event_id":"sha256:bf733fe3c86b55c13c088a362333e4db9c093b94aeb80b683dd3251b7d1fa2d5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:72NKME77V25TIV7AJMJVDLPL57","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Sloan Digital Sky Survey Data Release 7 M Dwarf Spectroscopic Catalog","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Adam F. Kowalski, Andrew A. West, Barbara Rojas-Ayala, David Bernat, David O. Jones, Dylan P. Morgan, Eric J. Hilton, Everett Schlawin, James R. A. Davenport, Jan Marie Andersen, John J. Bochanski, J. Sebastian Pineda, Keaton J. Bell, Kevin R. Covey, Kyle Schluns, Mary Gooding, Philip Muirhead, Sarah J. Schmidt, Saurav Dhital, Suzanne L. Hawley","submitted_at":"2010-12-16T22:05:26Z","abstract_excerpt":"We present a spectroscopic catalog of 70,841 visually inspected M dwarfs from the seventh data release (DR7) of the Sloan Digital Sky Survey (SDSS). For each spectrum, we provide measurements of the spectral type, a number of molecular bandheads, and the H-alpha, H-beta, H-gamma, H-delta and Ca II K emission lines. In addition, we calculate the metallicity-sensitive parameter zeta and 3D space motions for most of the stars in the sample. Our catalog is cross-matched to Two Micron All Sky Survey (2MASS) infrared data, and contains photometric distances for each star. Future studies will use the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.3766","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":"2026-05-18T04:33:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oHIFpwv7WtjN3uHLWhXhEzaXbf+BvoVaru9b0dAcTOY5usmO99LVz+61FlZKcD5EHTe5ShU84tnwBE1yt9SlDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T15:49:59.978795Z"},"content_sha256":"660f194dee956c4d949103b8d27decc32d9e2eb92e79200a2629b000f744176a","schema_version":"1.0","event_id":"sha256:660f194dee956c4d949103b8d27decc32d9e2eb92e79200a2629b000f744176a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/72NKME77V25TIV7AJMJVDLPL57/bundle.json","state_url":"https://pith.science/pith/72NKME77V25TIV7AJMJVDLPL57/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/72NKME77V25TIV7AJMJVDLPL57/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":"2026-05-27T15:49:59Z","links":{"resolver":"https://pith.science/pith/72NKME77V25TIV7AJMJVDLPL57","bundle":"https://pith.science/pith/72NKME77V25TIV7AJMJVDLPL57/bundle.json","state":"https://pith.science/pith/72NKME77V25TIV7AJMJVDLPL57/state.json","well_known_bundle":"https://pith.science/.well-known/pith/72NKME77V25TIV7AJMJVDLPL57/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:72NKME77V25TIV7AJMJVDLPL57","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":"7a94eedbe32850cfdef953f2f2285466fff6518b3b1fa5d7735480c73784b187","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-16T22:05:26Z","title_canon_sha256":"49d0ca63d400759ea45b263b61652b0b28f201720a42530958b0e7a2a8b7a6d8"},"schema_version":"1.0","source":{"id":"1012.3766","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.3766","created_at":"2026-05-18T04:33:03Z"},{"alias_kind":"arxiv_version","alias_value":"1012.3766v1","created_at":"2026-05-18T04:33:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.3766","created_at":"2026-05-18T04:33:03Z"},{"alias_kind":"pith_short_12","alias_value":"72NKME77V25T","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"72NKME77V25TIV7A","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"72NKME77","created_at":"2026-05-18T12:26:04Z"}],"graph_snapshots":[{"event_id":"sha256:660f194dee956c4d949103b8d27decc32d9e2eb92e79200a2629b000f744176a","target":"graph","created_at":"2026-05-18T04:33:03Z","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":"We present a spectroscopic catalog of 70,841 visually inspected M dwarfs from the seventh data release (DR7) of the Sloan Digital Sky Survey (SDSS). For each spectrum, we provide measurements of the spectral type, a number of molecular bandheads, and the H-alpha, H-beta, H-gamma, H-delta and Ca II K emission lines. In addition, we calculate the metallicity-sensitive parameter zeta and 3D space motions for most of the stars in the sample. Our catalog is cross-matched to Two Micron All Sky Survey (2MASS) infrared data, and contains photometric distances for each star. Future studies will use the","authors_text":"Adam F. Kowalski, Andrew A. West, Barbara Rojas-Ayala, David Bernat, David O. Jones, Dylan P. Morgan, Eric J. Hilton, Everett Schlawin, James R. A. Davenport, Jan Marie Andersen, John J. Bochanski, J. Sebastian Pineda, Keaton J. Bell, Kevin R. Covey, Kyle Schluns, Mary Gooding, Philip Muirhead, Sarah J. Schmidt, Saurav Dhital, Suzanne L. Hawley","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-16T22:05:26Z","title":"The Sloan Digital Sky Survey Data Release 7 M Dwarf Spectroscopic Catalog"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.3766","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:bf733fe3c86b55c13c088a362333e4db9c093b94aeb80b683dd3251b7d1fa2d5","target":"record","created_at":"2026-05-18T04:33:03Z","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":"7a94eedbe32850cfdef953f2f2285466fff6518b3b1fa5d7735480c73784b187","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-12-16T22:05:26Z","title_canon_sha256":"49d0ca63d400759ea45b263b61652b0b28f201720a42530958b0e7a2a8b7a6d8"},"schema_version":"1.0","source":{"id":"1012.3766","kind":"arxiv","version":1}},"canonical_sha256":"fe9aa613ffaebb3457e04b1351adebefe6031501482861a03e333c014e3b0524","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fe9aa613ffaebb3457e04b1351adebefe6031501482861a03e333c014e3b0524","first_computed_at":"2026-05-18T04:33:03.898227Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:33:03.898227Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4yhm22NotAbvItjXlQd0SkrUAVpAMN51v7gYEoPJJvrnZdQgE1o2FNWOF9gkrN64K18rYeqzMkmVNJZxbrlVAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:33:03.898848Z","signed_message":"canonical_sha256_bytes"},"source_id":"1012.3766","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bf733fe3c86b55c13c088a362333e4db9c093b94aeb80b683dd3251b7d1fa2d5","sha256:660f194dee956c4d949103b8d27decc32d9e2eb92e79200a2629b000f744176a"],"state_sha256":"b824906bd2d55c563032c9cd8669169e5caaed6b4676fc25485e1cce45f5bca4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H+HJdMsm58WgQAsCTdD0ZdXCpxyWgCxop5vJ3NW8rLunW4DXNTx+DJsABKQ/F8w7gbEvDqhAXg2Yyo8Fs4EaBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T15:49:59.982377Z","bundle_sha256":"8592142a8e2771dfb629547c0cce8c83182830bfef2f8562a2e62dcbc9f447ad"}}