{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:XYHFU7TZNLVIXNEV377SV6DWVP","short_pith_number":"pith:XYHFU7TZ","canonical_record":{"source":{"id":"1107.2844","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-07-14T15:04:42Z","cross_cats_sorted":[],"title_canon_sha256":"6e8a992b9e5b74716bf55e5aa92ad5fbb94a0310f170f11ffa3219f90fbf37f2","abstract_canon_sha256":"7de01775684d030e80be54f67a8824c2d1edd2ff3e92b5fa2ffc084593bf2626"},"schema_version":"1.0"},"canonical_sha256":"be0e5a7e796aea8bb495dfff2af876abf648c7be154205cd5344b0ef56a80e6e","source":{"kind":"arxiv","id":"1107.2844","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.2844","created_at":"2026-05-18T02:01:16Z"},{"alias_kind":"arxiv_version","alias_value":"1107.2844v1","created_at":"2026-05-18T02:01:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.2844","created_at":"2026-05-18T02:01:16Z"},{"alias_kind":"pith_short_12","alias_value":"XYHFU7TZNLVI","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"XYHFU7TZNLVIXNEV","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"XYHFU7TZ","created_at":"2026-05-18T12:26:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:XYHFU7TZNLVIXNEV377SV6DWVP","target":"record","payload":{"canonical_record":{"source":{"id":"1107.2844","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-07-14T15:04:42Z","cross_cats_sorted":[],"title_canon_sha256":"6e8a992b9e5b74716bf55e5aa92ad5fbb94a0310f170f11ffa3219f90fbf37f2","abstract_canon_sha256":"7de01775684d030e80be54f67a8824c2d1edd2ff3e92b5fa2ffc084593bf2626"},"schema_version":"1.0"},"canonical_sha256":"be0e5a7e796aea8bb495dfff2af876abf648c7be154205cd5344b0ef56a80e6e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:16.948885Z","signature_b64":"2XQ9lTEZTDgK80K9rfO+LtlcGjgqaNXrl1IT6lhmpKUiIDOh1OLA5t8tqea+eIBJkXt4otESHD7lq8WVDtwGDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"be0e5a7e796aea8bb495dfff2af876abf648c7be154205cd5344b0ef56a80e6e","last_reissued_at":"2026-05-18T02:01:16.948228Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:16.948228Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1107.2844","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":"2026-05-18T02:01:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rrHaWhU2JalIx2ep5FfPr5hSUTF0RXPwBPv9vLxxcXx+Dv49Kjd6MRY1AkShDOCNvzZi7+aJk8VUH99wEUkZBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T18:19:38.928102Z"},"content_sha256":"53f4b649e28c50ba149c9a5a015a37c694f799e4a68136097a6eb095835573d4","schema_version":"1.0","event_id":"sha256:53f4b649e28c50ba149c9a5a015a37c694f799e4a68136097a6eb095835573d4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:XYHFU7TZNLVIXNEV377SV6DWVP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Deep Mixing in Evolved Stars. II. Interpreting Li Abundances in RGB and AGB Stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"C. Abia, E. Maiorca, L. Gialanella, M. Busso, S. Cristallo, S. Palmerini, S. Uttenthaler","submitted_at":"2011-07-14T15:04:42Z","abstract_excerpt":"We reanalyze the problem of Li abundances in red giants of nearly solar metallicity. After an outline of the problems affecting our knowledge of the Li content in low-mass stars (M<3Mo), we discuss deep-mixing models for the RGB stages suitable to account for the observed trends and for the correlated variations of the carbon isotope ratio; we find that Li destruction in these phases is limited to masses below about 2.3 Mo. Subsequently, we concentrate on the final stages of evolution for both O-rich and C-rich AGB stars. Here, the constraints on extra-mixing phenomena previously derived from "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.2844","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":"2026-05-18T02:01:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KMCgaOxvMrjTZ8fNBltoORIPcL+PrJ7Jjqx1Ziqaj1hDO9PrFv1IKIcE/AEU2LC7yMGWqYOrrqm3y4LC0OLLAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T18:19:38.928625Z"},"content_sha256":"4f7bc7e41cc9c1e5b45a5edb30fef090b5d09fb771e6019ebadf3cc8ae94e862","schema_version":"1.0","event_id":"sha256:4f7bc7e41cc9c1e5b45a5edb30fef090b5d09fb771e6019ebadf3cc8ae94e862"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XYHFU7TZNLVIXNEV377SV6DWVP/bundle.json","state_url":"https://pith.science/pith/XYHFU7TZNLVIXNEV377SV6DWVP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XYHFU7TZNLVIXNEV377SV6DWVP/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":"2026-05-30T18:19:38Z","links":{"resolver":"https://pith.science/pith/XYHFU7TZNLVIXNEV377SV6DWVP","bundle":"https://pith.science/pith/XYHFU7TZNLVIXNEV377SV6DWVP/bundle.json","state":"https://pith.science/pith/XYHFU7TZNLVIXNEV377SV6DWVP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XYHFU7TZNLVIXNEV377SV6DWVP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:XYHFU7TZNLVIXNEV377SV6DWVP","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":"7de01775684d030e80be54f67a8824c2d1edd2ff3e92b5fa2ffc084593bf2626","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-07-14T15:04:42Z","title_canon_sha256":"6e8a992b9e5b74716bf55e5aa92ad5fbb94a0310f170f11ffa3219f90fbf37f2"},"schema_version":"1.0","source":{"id":"1107.2844","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1107.2844","created_at":"2026-05-18T02:01:16Z"},{"alias_kind":"arxiv_version","alias_value":"1107.2844v1","created_at":"2026-05-18T02:01:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1107.2844","created_at":"2026-05-18T02:01:16Z"},{"alias_kind":"pith_short_12","alias_value":"XYHFU7TZNLVI","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"XYHFU7TZNLVIXNEV","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"XYHFU7TZ","created_at":"2026-05-18T12:26:47Z"}],"graph_snapshots":[{"event_id":"sha256:4f7bc7e41cc9c1e5b45a5edb30fef090b5d09fb771e6019ebadf3cc8ae94e862","target":"graph","created_at":"2026-05-18T02:01:16Z","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 reanalyze the problem of Li abundances in red giants of nearly solar metallicity. After an outline of the problems affecting our knowledge of the Li content in low-mass stars (M<3Mo), we discuss deep-mixing models for the RGB stages suitable to account for the observed trends and for the correlated variations of the carbon isotope ratio; we find that Li destruction in these phases is limited to masses below about 2.3 Mo. Subsequently, we concentrate on the final stages of evolution for both O-rich and C-rich AGB stars. Here, the constraints on extra-mixing phenomena previously derived from ","authors_text":"C. Abia, E. Maiorca, L. Gialanella, M. Busso, S. Cristallo, S. Palmerini, S. Uttenthaler","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-07-14T15:04:42Z","title":"Deep Mixing in Evolved Stars. II. Interpreting Li Abundances in RGB and AGB Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1107.2844","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":"sha256:53f4b649e28c50ba149c9a5a015a37c694f799e4a68136097a6eb095835573d4","target":"record","created_at":"2026-05-18T02:01:16Z","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":"7de01775684d030e80be54f67a8824c2d1edd2ff3e92b5fa2ffc084593bf2626","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-07-14T15:04:42Z","title_canon_sha256":"6e8a992b9e5b74716bf55e5aa92ad5fbb94a0310f170f11ffa3219f90fbf37f2"},"schema_version":"1.0","source":{"id":"1107.2844","kind":"arxiv","version":1}},"canonical_sha256":"be0e5a7e796aea8bb495dfff2af876abf648c7be154205cd5344b0ef56a80e6e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be0e5a7e796aea8bb495dfff2af876abf648c7be154205cd5344b0ef56a80e6e","first_computed_at":"2026-05-18T02:01:16.948228Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:16.948228Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2XQ9lTEZTDgK80K9rfO+LtlcGjgqaNXrl1IT6lhmpKUiIDOh1OLA5t8tqea+eIBJkXt4otESHD7lq8WVDtwGDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:16.948885Z","signed_message":"canonical_sha256_bytes"},"source_id":"1107.2844","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:53f4b649e28c50ba149c9a5a015a37c694f799e4a68136097a6eb095835573d4","sha256:4f7bc7e41cc9c1e5b45a5edb30fef090b5d09fb771e6019ebadf3cc8ae94e862"],"state_sha256":"8843b85a0d9b105919d8f3102bee77b3fc8ad151b4228ad440c9401cb2b51bd2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GQqgYpjFprqQHSSEBQ5II0HygczJzVAPMx0e0KntpjC1fpnFfHRh/yoOHgneM9HZgLphsfdwIdvRNOUulA+BDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T18:19:38.931753Z","bundle_sha256":"066421cd55c0fa40aa0b489a6e455a75d929f8ffa4599374311156f2cce4ea5b"}}