{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:AWOLF5N6MEEIJKWXEML4AZC2A5","short_pith_number":"pith:AWOLF5N6","canonical_record":{"source":{"id":"1302.6231","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-02-25T21:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"7f94ddf04293afe9b0687bf2053583566b379be733053e1ff0fc3aae8f66738d","abstract_canon_sha256":"795c0c9899c5436ce69be1d5ba2b761e772e9e98859a95993bed189a84c1734d"},"schema_version":"1.0"},"canonical_sha256":"059cb2f5be610884aad72317c0645a0771c5cc5a4c172cae95e3915e5a8f5c99","source":{"kind":"arxiv","id":"1302.6231","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.6231","created_at":"2026-05-18T01:51:28Z"},{"alias_kind":"arxiv_version","alias_value":"1302.6231v2","created_at":"2026-05-18T01:51:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.6231","created_at":"2026-05-18T01:51:28Z"},{"alias_kind":"pith_short_12","alias_value":"AWOLF5N6MEEI","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"AWOLF5N6MEEIJKWX","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"AWOLF5N6","created_at":"2026-05-18T12:27:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:AWOLF5N6MEEIJKWXEML4AZC2A5","target":"record","payload":{"canonical_record":{"source":{"id":"1302.6231","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-02-25T21:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"7f94ddf04293afe9b0687bf2053583566b379be733053e1ff0fc3aae8f66738d","abstract_canon_sha256":"795c0c9899c5436ce69be1d5ba2b761e772e9e98859a95993bed189a84c1734d"},"schema_version":"1.0"},"canonical_sha256":"059cb2f5be610884aad72317c0645a0771c5cc5a4c172cae95e3915e5a8f5c99","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:51:28.689558Z","signature_b64":"BlnbCU3cIhRxGsyUC0zqAGSCRjRyPXTJv5ElSJaMXlEBhW91frVz841Q39KzpTxiFTPoyjM3mYdQsA7NwGUQAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"059cb2f5be610884aad72317c0645a0771c5cc5a4c172cae95e3915e5a8f5c99","last_reissued_at":"2026-05-18T01:51:28.689120Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:51:28.689120Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1302.6231","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":"2026-05-18T01:51:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qb2eWMdOyr6HoGG7l7gpQA4rti/sPbg9SaZsnN2MjKDyZZidFFCbfh3yQYhVK97QXEgcHOn/XkeAaQcHRHBcDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T17:03:10.090826Z"},"content_sha256":"a31f5a784760760a3f24db82d5d0bff5e470e542c36cb0e6a314c04caf32d2a7","schema_version":"1.0","event_id":"sha256:a31f5a784760760a3f24db82d5d0bff5e470e542c36cb0e6a314c04caf32d2a7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:AWOLF5N6MEEIJKWXEML4AZC2A5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Using High-Resolution Optical Spectra to Measure Intrinsic Properties of Low-Mass Stars: New Properties for KOI-314 and GJ 3470","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"John A. Johnson, J. Sebastian Pineda, Michael Bottom","submitted_at":"2013-02-25T21:00:00Z","abstract_excerpt":"We construct high signal-to-noise \"template\" spectra by co-adding hundreds of spectra of nearby dwarfs spanning K7 to M4, taken with Keck/HIRES as part of the California Planet Search. We identify several spectral regions in the visible (370 - 800 nm) that are sensitive to the stellar luminosity and metallicity. We use these regions to develop a spectral calibration method to measure the mass, metallicity, and distance of low-mass stars, without the requirement of geometric parallaxes. Testing our method on a sample of nearby M dwarfs we show that we can reproduce stellar masses to about 8 - 1"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.6231","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":"2026-05-18T01:51:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"awhOXXHvB/ZlWqTRvHZx99wYytKijz45aQMdsCBFIfmxeuqgbaoo4NDqddI6lqtFH8C6/C2A/JxAs7NnOxMiDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T17:03:10.091529Z"},"content_sha256":"b5037b2f6f5a77d3643037f59faf88e9bb8aae8661f652bdceffacbbb558c3c7","schema_version":"1.0","event_id":"sha256:b5037b2f6f5a77d3643037f59faf88e9bb8aae8661f652bdceffacbbb558c3c7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AWOLF5N6MEEIJKWXEML4AZC2A5/bundle.json","state_url":"https://pith.science/pith/AWOLF5N6MEEIJKWXEML4AZC2A5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AWOLF5N6MEEIJKWXEML4AZC2A5/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":"2026-05-25T17:03:10Z","links":{"resolver":"https://pith.science/pith/AWOLF5N6MEEIJKWXEML4AZC2A5","bundle":"https://pith.science/pith/AWOLF5N6MEEIJKWXEML4AZC2A5/bundle.json","state":"https://pith.science/pith/AWOLF5N6MEEIJKWXEML4AZC2A5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AWOLF5N6MEEIJKWXEML4AZC2A5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:AWOLF5N6MEEIJKWXEML4AZC2A5","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":"795c0c9899c5436ce69be1d5ba2b761e772e9e98859a95993bed189a84c1734d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-02-25T21:00:00Z","title_canon_sha256":"7f94ddf04293afe9b0687bf2053583566b379be733053e1ff0fc3aae8f66738d"},"schema_version":"1.0","source":{"id":"1302.6231","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.6231","created_at":"2026-05-18T01:51:28Z"},{"alias_kind":"arxiv_version","alias_value":"1302.6231v2","created_at":"2026-05-18T01:51:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.6231","created_at":"2026-05-18T01:51:28Z"},{"alias_kind":"pith_short_12","alias_value":"AWOLF5N6MEEI","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"AWOLF5N6MEEIJKWX","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"AWOLF5N6","created_at":"2026-05-18T12:27:38Z"}],"graph_snapshots":[{"event_id":"sha256:b5037b2f6f5a77d3643037f59faf88e9bb8aae8661f652bdceffacbbb558c3c7","target":"graph","created_at":"2026-05-18T01:51:28Z","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 construct high signal-to-noise \"template\" spectra by co-adding hundreds of spectra of nearby dwarfs spanning K7 to M4, taken with Keck/HIRES as part of the California Planet Search. We identify several spectral regions in the visible (370 - 800 nm) that are sensitive to the stellar luminosity and metallicity. We use these regions to develop a spectral calibration method to measure the mass, metallicity, and distance of low-mass stars, without the requirement of geometric parallaxes. Testing our method on a sample of nearby M dwarfs we show that we can reproduce stellar masses to about 8 - 1","authors_text":"John A. Johnson, J. Sebastian Pineda, Michael Bottom","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-02-25T21:00:00Z","title":"Using High-Resolution Optical Spectra to Measure Intrinsic Properties of Low-Mass Stars: New Properties for KOI-314 and GJ 3470"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.6231","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:a31f5a784760760a3f24db82d5d0bff5e470e542c36cb0e6a314c04caf32d2a7","target":"record","created_at":"2026-05-18T01:51:28Z","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":"795c0c9899c5436ce69be1d5ba2b761e772e9e98859a95993bed189a84c1734d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-02-25T21:00:00Z","title_canon_sha256":"7f94ddf04293afe9b0687bf2053583566b379be733053e1ff0fc3aae8f66738d"},"schema_version":"1.0","source":{"id":"1302.6231","kind":"arxiv","version":2}},"canonical_sha256":"059cb2f5be610884aad72317c0645a0771c5cc5a4c172cae95e3915e5a8f5c99","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"059cb2f5be610884aad72317c0645a0771c5cc5a4c172cae95e3915e5a8f5c99","first_computed_at":"2026-05-18T01:51:28.689120Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:28.689120Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BlnbCU3cIhRxGsyUC0zqAGSCRjRyPXTJv5ElSJaMXlEBhW91frVz841Q39KzpTxiFTPoyjM3mYdQsA7NwGUQAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:28.689558Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.6231","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a31f5a784760760a3f24db82d5d0bff5e470e542c36cb0e6a314c04caf32d2a7","sha256:b5037b2f6f5a77d3643037f59faf88e9bb8aae8661f652bdceffacbbb558c3c7"],"state_sha256":"3ebfaba0d60cfdfcf585b97f0e77decc8a455ab8e5b9be740fa0c55f59c9981c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"11eSSRKWJLgzJPZ3oYQjYhExb+GbURtoqMa8aRqHb0fS7Y5/JMCV3eTsfJW/LXforUf+Ua71JHLB0EahLxPOBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T17:03:10.096435Z","bundle_sha256":"48daf6c56982e89b16e0118ab53d82e16c6ecc0f6ab3d91f7b181d045b40c9d5"}}