{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:565ICNPPAJMC5A6R3UOHW3CJHN","short_pith_number":"pith:565ICNPP","canonical_record":{"source":{"id":"1402.4251","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-02-18T08:45:54Z","cross_cats_sorted":["astro-ph.CO","astro-ph.SR"],"title_canon_sha256":"a8e50bb5c1465ad12a411de5f1cf4b44e1fe179f870e1fc2a3d54966aafa4f0c","abstract_canon_sha256":"56afe5f012f8439f5a7af46e2c282cd22cbc62ca4fb99eb35a509f523152ec4b"},"schema_version":"1.0"},"canonical_sha256":"efba8135ef02582e83d1dd1c7b6c493b58c3c5925c356b5d12bdddc10df1a0e9","source":{"kind":"arxiv","id":"1402.4251","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.4251","created_at":"2026-05-18T01:44:36Z"},{"alias_kind":"arxiv_version","alias_value":"1402.4251v1","created_at":"2026-05-18T01:44:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.4251","created_at":"2026-05-18T01:44:36Z"},{"alias_kind":"pith_short_12","alias_value":"565ICNPPAJMC","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"565ICNPPAJMC5A6R","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"565ICNPP","created_at":"2026-05-18T12:28:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:565ICNPPAJMC5A6R3UOHW3CJHN","target":"record","payload":{"canonical_record":{"source":{"id":"1402.4251","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-02-18T08:45:54Z","cross_cats_sorted":["astro-ph.CO","astro-ph.SR"],"title_canon_sha256":"a8e50bb5c1465ad12a411de5f1cf4b44e1fe179f870e1fc2a3d54966aafa4f0c","abstract_canon_sha256":"56afe5f012f8439f5a7af46e2c282cd22cbc62ca4fb99eb35a509f523152ec4b"},"schema_version":"1.0"},"canonical_sha256":"efba8135ef02582e83d1dd1c7b6c493b58c3c5925c356b5d12bdddc10df1a0e9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:44:36.978690Z","signature_b64":"K1ooM3pWhfO2gZVv6ytCu4pMzdE2kLOUa901FiO+6hhryAU5uB9rSnjNxv8sbU2GzYAPFQFte8CjVyOiUyrgCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"efba8135ef02582e83d1dd1c7b6c493b58c3c5925c356b5d12bdddc10df1a0e9","last_reissued_at":"2026-05-18T01:44:36.978261Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:44:36.978261Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1402.4251","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":"2026-05-18T01:44:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ewDrIB1mErCpA+weTj2QJaj3Hy2v/0fSmShOUhY755fIKPZkS2Kysff1HObbg66RMPp8j4zophWcml6KHrB0DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T11:41:48.769710Z"},"content_sha256":"e09ee7e1c69ed66d99fc31cbfa3d49994950a24cf1381d399a9cb3d4aef5c84c","schema_version":"1.0","event_id":"sha256:e09ee7e1c69ed66d99fc31cbfa3d49994950a24cf1381d399a9cb3d4aef5c84c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:565ICNPPAJMC5A6R3UOHW3CJHN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Possible Evidence for Metal Accretion onto the Surfaces of Metal-Poor Main-Sequence Stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Daniela Carollo, Kohei Hattori, Timothy C. Beers, Young Sun Lee, Yuzuru Yoshii","submitted_at":"2014-02-18T08:45:54Z","abstract_excerpt":"The entire evolution of the Milky Way, including its mass-assembly and star-formation history, is imprinted onto the chemo-dynamical distribution function of its member stars, f(x, v, [X/H]), in the multi-dimensional phase space spanned by position, velocity, and elemental abundance ratios. In particular, the chemo-dynamical distribution functions for low-mass stars (e.g., G- or K-type dwarfs) are precious tracers of the earliest stages of the Milky Way's formation, since their main-sequence lifetimes approach or exceed the age of the universe. A basic tenet of essentially all previous analyse"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.4251","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":"2026-05-18T01:44:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IyOJd5/roiJvfL1x52CIN61A3NZKcEUhovilj8BDVsr2IE6IxQ0qeS55AN8CAd9yfg3b+/2cc3kWeETmrwNsCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T11:41:48.770096Z"},"content_sha256":"2f3c9550103ba4f8f08c0cfedada3519e410e1aa30f97467dfc3fdb4da84c5f8","schema_version":"1.0","event_id":"sha256:2f3c9550103ba4f8f08c0cfedada3519e410e1aa30f97467dfc3fdb4da84c5f8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/565ICNPPAJMC5A6R3UOHW3CJHN/bundle.json","state_url":"https://pith.science/pith/565ICNPPAJMC5A6R3UOHW3CJHN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/565ICNPPAJMC5A6R3UOHW3CJHN/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":"2026-05-30T11:41:48Z","links":{"resolver":"https://pith.science/pith/565ICNPPAJMC5A6R3UOHW3CJHN","bundle":"https://pith.science/pith/565ICNPPAJMC5A6R3UOHW3CJHN/bundle.json","state":"https://pith.science/pith/565ICNPPAJMC5A6R3UOHW3CJHN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/565ICNPPAJMC5A6R3UOHW3CJHN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:565ICNPPAJMC5A6R3UOHW3CJHN","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":"56afe5f012f8439f5a7af46e2c282cd22cbc62ca4fb99eb35a509f523152ec4b","cross_cats_sorted":["astro-ph.CO","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-02-18T08:45:54Z","title_canon_sha256":"a8e50bb5c1465ad12a411de5f1cf4b44e1fe179f870e1fc2a3d54966aafa4f0c"},"schema_version":"1.0","source":{"id":"1402.4251","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.4251","created_at":"2026-05-18T01:44:36Z"},{"alias_kind":"arxiv_version","alias_value":"1402.4251v1","created_at":"2026-05-18T01:44:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.4251","created_at":"2026-05-18T01:44:36Z"},{"alias_kind":"pith_short_12","alias_value":"565ICNPPAJMC","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"565ICNPPAJMC5A6R","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"565ICNPP","created_at":"2026-05-18T12:28:14Z"}],"graph_snapshots":[{"event_id":"sha256:2f3c9550103ba4f8f08c0cfedada3519e410e1aa30f97467dfc3fdb4da84c5f8","target":"graph","created_at":"2026-05-18T01:44:36Z","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 entire evolution of the Milky Way, including its mass-assembly and star-formation history, is imprinted onto the chemo-dynamical distribution function of its member stars, f(x, v, [X/H]), in the multi-dimensional phase space spanned by position, velocity, and elemental abundance ratios. In particular, the chemo-dynamical distribution functions for low-mass stars (e.g., G- or K-type dwarfs) are precious tracers of the earliest stages of the Milky Way's formation, since their main-sequence lifetimes approach or exceed the age of the universe. A basic tenet of essentially all previous analyse","authors_text":"Daniela Carollo, Kohei Hattori, Timothy C. Beers, Young Sun Lee, Yuzuru Yoshii","cross_cats":["astro-ph.CO","astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-02-18T08:45:54Z","title":"Possible Evidence for Metal Accretion onto the Surfaces of Metal-Poor Main-Sequence Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.4251","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:e09ee7e1c69ed66d99fc31cbfa3d49994950a24cf1381d399a9cb3d4aef5c84c","target":"record","created_at":"2026-05-18T01:44:36Z","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":"56afe5f012f8439f5a7af46e2c282cd22cbc62ca4fb99eb35a509f523152ec4b","cross_cats_sorted":["astro-ph.CO","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-02-18T08:45:54Z","title_canon_sha256":"a8e50bb5c1465ad12a411de5f1cf4b44e1fe179f870e1fc2a3d54966aafa4f0c"},"schema_version":"1.0","source":{"id":"1402.4251","kind":"arxiv","version":1}},"canonical_sha256":"efba8135ef02582e83d1dd1c7b6c493b58c3c5925c356b5d12bdddc10df1a0e9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"efba8135ef02582e83d1dd1c7b6c493b58c3c5925c356b5d12bdddc10df1a0e9","first_computed_at":"2026-05-18T01:44:36.978261Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:44:36.978261Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"K1ooM3pWhfO2gZVv6ytCu4pMzdE2kLOUa901FiO+6hhryAU5uB9rSnjNxv8sbU2GzYAPFQFte8CjVyOiUyrgCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:44:36.978690Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.4251","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e09ee7e1c69ed66d99fc31cbfa3d49994950a24cf1381d399a9cb3d4aef5c84c","sha256:2f3c9550103ba4f8f08c0cfedada3519e410e1aa30f97467dfc3fdb4da84c5f8"],"state_sha256":"eb64e9f46bc4bd5f61cc9412a19839016801beeb8110a0747b545f83ec61951f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dZNUazg2tCQfZBKbavffkwLn63ag3Y/o8VXbIkZXV/QhhhBacV5iTkdD+2jGAuFvAkl41s03yJkB5FpnK+obAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T11:41:48.772434Z","bundle_sha256":"844a9a7d9c10b6806c2e46da2266fefadf7fcd704a794685e60d8af9127337f4"}}