{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:CKSOELWTTPGUL7N6P75VDCHFGO","short_pith_number":"pith:CKSOELWT","canonical_record":{"source":{"id":"astro-ph/0703564","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-03-21T18:04:25Z","cross_cats_sorted":[],"title_canon_sha256":"6d49810544018c2ffcbd86b92c542a85d51410780b31161b7774216f5bf011d0","abstract_canon_sha256":"30b17245be3eb411dceed29c41f77e9eb7a248c67285985aae204bc501b2b6d8"},"schema_version":"1.0"},"canonical_sha256":"12a4e22ed39bcd45fdbe7ffb5188e53383c03f71e71fc7398684d6f8dd2c7211","source":{"kind":"arxiv","id":"astro-ph/0703564","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0703564","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0703564v1","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0703564","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"pith_short_12","alias_value":"CKSOELWTTPGU","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"CKSOELWTTPGUL7N6","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"CKSOELWT","created_at":"2026-05-18T12:25:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:CKSOELWTTPGUL7N6P75VDCHFGO","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0703564","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-03-21T18:04:25Z","cross_cats_sorted":[],"title_canon_sha256":"6d49810544018c2ffcbd86b92c542a85d51410780b31161b7774216f5bf011d0","abstract_canon_sha256":"30b17245be3eb411dceed29c41f77e9eb7a248c67285985aae204bc501b2b6d8"},"schema_version":"1.0"},"canonical_sha256":"12a4e22ed39bcd45fdbe7ffb5188e53383c03f71e71fc7398684d6f8dd2c7211","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:05.488268Z","signature_b64":"9RsMnGu+VqKZZ5gVGvmLYEVkgNzDZQWmWZSQbPTKHhaxpIliE7HppmXaYRoRFQQNB4JxYfFn50HhjAOSbpjACg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"12a4e22ed39bcd45fdbe7ffb5188e53383c03f71e71fc7398684d6f8dd2c7211","last_reissued_at":"2026-05-18T04:29:05.487654Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:05.487654Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0703564","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":"2026-05-18T04:29:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xyaxUgjOD5ztJyx+tfzvlFcQYtHJok+SVgwrF3AGi0+dMoBRn5SDlXqxuUzqG5xeTpDau7xmIQutXvWQwhXzBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T09:59:46.636346Z"},"content_sha256":"afe93b4d6efedb10c1c6b66f86d30f58369d2ad419aa1c0b6438eda1fa47b684","schema_version":"1.0","event_id":"sha256:afe93b4d6efedb10c1c6b66f86d30f58369d2ad419aa1c0b6438eda1fa47b684"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:CKSOELWTTPGUL7N6P75VDCHFGO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"New Photometry and Spectra of AB Doradus C: An Accurate Mass Determination of a Young Low-Mass Object with Theoretical Evolutionary Tracks","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Eric L. Nielsen, Fraser Clarke, Laird M. Close, & Matthias Tecza, Niranjan Thatte, Roberto Abuter","submitted_at":"2007-03-21T18:04:25Z","abstract_excerpt":"We present new photometric and spectroscopic measurements for the unique, young, low-mass evolutionary track calibrator AB Dor C. While the new Ks photometry is similar to that previously published in Close et al. (2005) the spectral type is found to be earlier. Based on new H & K IFS spectra of AB Dor C (Thatte et al. 2007; paper 1) we adopt a spectral type of M5.5+/-1.0 for AB Dor C. This is considerably earlier than the M8+/-1 estimated in Close et al. (2005) and Nielsen et al. (2005) yet is consistent with the M6+/-1 independently derived by Luhman & Potter (2005). However, the spectrum pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0703564","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":"2026-05-18T04:29:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mxCLCkVOsC2ugwarbDuvbwaRo+ygmU627utDH/H7E9rXKhzwKvFU5V/rtu6pKp9SIKB9XAkzXZviTB0oXeyjDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T09:59:46.636783Z"},"content_sha256":"83843714446d19cf36a73090e3d6fcc67dcc7b368de99bdf8a9909da2118ec2d","schema_version":"1.0","event_id":"sha256:83843714446d19cf36a73090e3d6fcc67dcc7b368de99bdf8a9909da2118ec2d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CKSOELWTTPGUL7N6P75VDCHFGO/bundle.json","state_url":"https://pith.science/pith/CKSOELWTTPGUL7N6P75VDCHFGO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CKSOELWTTPGUL7N6P75VDCHFGO/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":"2026-05-27T09:59:46Z","links":{"resolver":"https://pith.science/pith/CKSOELWTTPGUL7N6P75VDCHFGO","bundle":"https://pith.science/pith/CKSOELWTTPGUL7N6P75VDCHFGO/bundle.json","state":"https://pith.science/pith/CKSOELWTTPGUL7N6P75VDCHFGO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CKSOELWTTPGUL7N6P75VDCHFGO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:CKSOELWTTPGUL7N6P75VDCHFGO","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":"30b17245be3eb411dceed29c41f77e9eb7a248c67285985aae204bc501b2b6d8","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-03-21T18:04:25Z","title_canon_sha256":"6d49810544018c2ffcbd86b92c542a85d51410780b31161b7774216f5bf011d0"},"schema_version":"1.0","source":{"id":"astro-ph/0703564","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0703564","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0703564v1","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0703564","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"pith_short_12","alias_value":"CKSOELWTTPGU","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"CKSOELWTTPGUL7N6","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"CKSOELWT","created_at":"2026-05-18T12:25:55Z"}],"graph_snapshots":[{"event_id":"sha256:83843714446d19cf36a73090e3d6fcc67dcc7b368de99bdf8a9909da2118ec2d","target":"graph","created_at":"2026-05-18T04:29:05Z","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 new photometric and spectroscopic measurements for the unique, young, low-mass evolutionary track calibrator AB Dor C. While the new Ks photometry is similar to that previously published in Close et al. (2005) the spectral type is found to be earlier. Based on new H & K IFS spectra of AB Dor C (Thatte et al. 2007; paper 1) we adopt a spectral type of M5.5+/-1.0 for AB Dor C. This is considerably earlier than the M8+/-1 estimated in Close et al. (2005) and Nielsen et al. (2005) yet is consistent with the M6+/-1 independently derived by Luhman & Potter (2005). However, the spectrum pr","authors_text":"Eric L. Nielsen, Fraser Clarke, Laird M. Close, & Matthias Tecza, Niranjan Thatte, Roberto Abuter","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-03-21T18:04:25Z","title":"New Photometry and Spectra of AB Doradus C: An Accurate Mass Determination of a Young Low-Mass Object with Theoretical Evolutionary Tracks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0703564","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:afe93b4d6efedb10c1c6b66f86d30f58369d2ad419aa1c0b6438eda1fa47b684","target":"record","created_at":"2026-05-18T04:29:05Z","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":"30b17245be3eb411dceed29c41f77e9eb7a248c67285985aae204bc501b2b6d8","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-03-21T18:04:25Z","title_canon_sha256":"6d49810544018c2ffcbd86b92c542a85d51410780b31161b7774216f5bf011d0"},"schema_version":"1.0","source":{"id":"astro-ph/0703564","kind":"arxiv","version":1}},"canonical_sha256":"12a4e22ed39bcd45fdbe7ffb5188e53383c03f71e71fc7398684d6f8dd2c7211","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"12a4e22ed39bcd45fdbe7ffb5188e53383c03f71e71fc7398684d6f8dd2c7211","first_computed_at":"2026-05-18T04:29:05.487654Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:29:05.487654Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9RsMnGu+VqKZZ5gVGvmLYEVkgNzDZQWmWZSQbPTKHhaxpIliE7HppmXaYRoRFQQNB4JxYfFn50HhjAOSbpjACg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:29:05.488268Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0703564","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:afe93b4d6efedb10c1c6b66f86d30f58369d2ad419aa1c0b6438eda1fa47b684","sha256:83843714446d19cf36a73090e3d6fcc67dcc7b368de99bdf8a9909da2118ec2d"],"state_sha256":"7d2e44a3f87c4caf6e50b33125018303ea918c6a1a725bbc96e43282e785192f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EPLEkKESOTVIwewKrdD7Xue6LNzTpu4JHCB0cAHvLUgV2K5N06ydBZ0F5Gz/sk5NcnuDcbLGmSNK0LYV7XYtCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T09:59:46.639727Z","bundle_sha256":"ddf1adb2bc10aa8a1b2ad26b685eb44b2f4d9f586bdcabefd92bbea85059ac9f"}}