{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:WTESIZ5TOXXBJG4OVG6QVYNO4S","short_pith_number":"pith:WTESIZ5T","canonical_record":{"source":{"id":"astro-ph/0210498","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-10-22T20:17:15Z","cross_cats_sorted":[],"title_canon_sha256":"a6b90cb7cbdc5a74b383a70c658f0e7cd9dcff6df57d9235bdc7cbde7edbb20f","abstract_canon_sha256":"b11466bf2c7f7787c6f62be727370b5919a3d7a7eb4320838ee04a71d4e5fde3"},"schema_version":"1.0"},"canonical_sha256":"b4c92467b375ee149b8ea9bd0ae1aee49e3b906514ba002bc87bcbc589ae716e","source":{"kind":"arxiv","id":"astro-ph/0210498","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0210498","created_at":"2026-05-18T01:09:03Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0210498v1","created_at":"2026-05-18T01:09:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0210498","created_at":"2026-05-18T01:09:03Z"},{"alias_kind":"pith_short_12","alias_value":"WTESIZ5TOXXB","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"WTESIZ5TOXXBJG4O","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"WTESIZ5T","created_at":"2026-05-18T12:25:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:WTESIZ5TOXXBJG4OVG6QVYNO4S","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0210498","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2002-10-22T20:17:15Z","cross_cats_sorted":[],"title_canon_sha256":"a6b90cb7cbdc5a74b383a70c658f0e7cd9dcff6df57d9235bdc7cbde7edbb20f","abstract_canon_sha256":"b11466bf2c7f7787c6f62be727370b5919a3d7a7eb4320838ee04a71d4e5fde3"},"schema_version":"1.0"},"canonical_sha256":"b4c92467b375ee149b8ea9bd0ae1aee49e3b906514ba002bc87bcbc589ae716e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:03.565938Z","signature_b64":"DPCbi64VY+9JKa0soZ0ovbTHAIwgbRUQxuRz6DxYSDWR9rfNI5qBrVLDQvvVbE954ByYzbB+UWrtGMdir7D2DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b4c92467b375ee149b8ea9bd0ae1aee49e3b906514ba002bc87bcbc589ae716e","last_reissued_at":"2026-05-18T01:09:03.565496Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:03.565496Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0210498","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":"2026-05-18T01:09:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9oSuXe5/0WsjP1BOZaEFKUWRmt5kttpxDCasb8h1AdxGO48lCYtcYU9u3RQsyS3GsA9kaCnMviuNVt1/C9cBAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T05:46:25.610430Z"},"content_sha256":"0287377b4c3f41ac0b60cc762f60284a4c33fd6cff4cc262a5ad5c28975d006e","schema_version":"1.0","event_id":"sha256:0287377b4c3f41ac0b60cc762f60284a4c33fd6cff4cc262a5ad5c28975d006e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:WTESIZ5TOXXBJG4OVG6QVYNO4S","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pulsation at the tip of the first giant branch?","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"5) ((1) Institute of Astronomy, Chie Nagashima (2), Daisuke Kato (2), Hidehiko Nakaya (4), Mikio Kurita (2), Motohide Tamura (3), Nagoya University; (3) National Astronomical Observatory of Japan; (4) Subaru Telescope, National Astronomical Observatory of Japan; (5) Kiso Observatory, Noriyuki Matsunaga (1), School of Science, Shuji Sato (2), Takahiro Nagayama (2), Tetsuya Nagata (2), The University of Tokyo), University of Tokyo; (2) Department of Astrophysics, Yasushi Nakajima (2), Yoshifusa Ita (1) Toshihiko Tanab\\'e (1), Yoshikazu Nakada (1","submitted_at":"2002-10-22T20:17:15Z","abstract_excerpt":"The first results of our ongoing near-infrared (NIR) survey of the variable red giants in the Large Magellanic Cloud, using the Infrared Survey Facility (IRSF) and the SIRIUS infrared camera, are presented. Many very red stars were detected and found that most of them are variables. In the observed colour-magnitude diagram ($J-K, K$) and the stellar $K$ magnitude distribution, the tip of the first giant branch (TRGB), where helium burning in the core starts, is clearly seen. Apart from the genuine AGB variables, we found many variable stars at luminosities around the TRGB. From this result, we"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0210498","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":"2026-05-18T01:09:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X01/PLivv0WWRfxozZF3QiGTr6K96ruow1oRdQ+eebBUy90EM/QIRGny5sgnLYc//voejsZYypR8SoPt8JJTBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T05:46:25.610777Z"},"content_sha256":"28704150b1af35a636b622dc9b953ec7ed391c571bbb8058d03a5d38256f2321","schema_version":"1.0","event_id":"sha256:28704150b1af35a636b622dc9b953ec7ed391c571bbb8058d03a5d38256f2321"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WTESIZ5TOXXBJG4OVG6QVYNO4S/bundle.json","state_url":"https://pith.science/pith/WTESIZ5TOXXBJG4OVG6QVYNO4S/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WTESIZ5TOXXBJG4OVG6QVYNO4S/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":"2026-06-03T05:46:25Z","links":{"resolver":"https://pith.science/pith/WTESIZ5TOXXBJG4OVG6QVYNO4S","bundle":"https://pith.science/pith/WTESIZ5TOXXBJG4OVG6QVYNO4S/bundle.json","state":"https://pith.science/pith/WTESIZ5TOXXBJG4OVG6QVYNO4S/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WTESIZ5TOXXBJG4OVG6QVYNO4S/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:WTESIZ5TOXXBJG4OVG6QVYNO4S","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":"b11466bf2c7f7787c6f62be727370b5919a3d7a7eb4320838ee04a71d4e5fde3","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-10-22T20:17:15Z","title_canon_sha256":"a6b90cb7cbdc5a74b383a70c658f0e7cd9dcff6df57d9235bdc7cbde7edbb20f"},"schema_version":"1.0","source":{"id":"astro-ph/0210498","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0210498","created_at":"2026-05-18T01:09:03Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0210498v1","created_at":"2026-05-18T01:09:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0210498","created_at":"2026-05-18T01:09:03Z"},{"alias_kind":"pith_short_12","alias_value":"WTESIZ5TOXXB","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"WTESIZ5TOXXBJG4O","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"WTESIZ5T","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:28704150b1af35a636b622dc9b953ec7ed391c571bbb8058d03a5d38256f2321","target":"graph","created_at":"2026-05-18T01:09:03Z","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":"The first results of our ongoing near-infrared (NIR) survey of the variable red giants in the Large Magellanic Cloud, using the Infrared Survey Facility (IRSF) and the SIRIUS infrared camera, are presented. Many very red stars were detected and found that most of them are variables. In the observed colour-magnitude diagram ($J-K, K$) and the stellar $K$ magnitude distribution, the tip of the first giant branch (TRGB), where helium burning in the core starts, is clearly seen. Apart from the genuine AGB variables, we found many variable stars at luminosities around the TRGB. From this result, we","authors_text":"5) ((1) Institute of Astronomy, Chie Nagashima (2), Daisuke Kato (2), Hidehiko Nakaya (4), Mikio Kurita (2), Motohide Tamura (3), Nagoya University; (3) National Astronomical Observatory of Japan; (4) Subaru Telescope, National Astronomical Observatory of Japan; (5) Kiso Observatory, Noriyuki Matsunaga (1), School of Science, Shuji Sato (2), Takahiro Nagayama (2), Tetsuya Nagata (2), The University of Tokyo), University of Tokyo; (2) Department of Astrophysics, Yasushi Nakajima (2), Yoshifusa Ita (1) Toshihiko Tanab\\'e (1), Yoshikazu Nakada (1","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2002-10-22T20:17:15Z","title":"Pulsation at the tip of the first giant branch?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0210498","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":"sha256:0287377b4c3f41ac0b60cc762f60284a4c33fd6cff4cc262a5ad5c28975d006e","target":"record","created_at":"2026-05-18T01:09:03Z","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":"b11466bf2c7f7787c6f62be727370b5919a3d7a7eb4320838ee04a71d4e5fde3","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2002-10-22T20:17:15Z","title_canon_sha256":"a6b90cb7cbdc5a74b383a70c658f0e7cd9dcff6df57d9235bdc7cbde7edbb20f"},"schema_version":"1.0","source":{"id":"astro-ph/0210498","kind":"arxiv","version":1}},"canonical_sha256":"b4c92467b375ee149b8ea9bd0ae1aee49e3b906514ba002bc87bcbc589ae716e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b4c92467b375ee149b8ea9bd0ae1aee49e3b906514ba002bc87bcbc589ae716e","first_computed_at":"2026-05-18T01:09:03.565496Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:03.565496Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DPCbi64VY+9JKa0soZ0ovbTHAIwgbRUQxuRz6DxYSDWR9rfNI5qBrVLDQvvVbE954ByYzbB+UWrtGMdir7D2DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:03.565938Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0210498","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0287377b4c3f41ac0b60cc762f60284a4c33fd6cff4cc262a5ad5c28975d006e","sha256:28704150b1af35a636b622dc9b953ec7ed391c571bbb8058d03a5d38256f2321"],"state_sha256":"9e1ab4087670c098951a43b1d94ffd1b1e3f88485fe5ec6430d046d86777674c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W3ISskXoLwJUXJDURIQYkhu4aciDaBObjpWNewEaHTvsJCom0LnwMeFdGi3J51TMlkR9sogdKV/ckWEcElJ4Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T05:46:25.612678Z","bundle_sha256":"ccc2d914924f218c74e20d0065b21db22b92c9d48ebfdcb6918510de3720a2f0"}}