{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:HUPRSONTPMNGHJW3F3SNLEESUR","short_pith_number":"pith:HUPRSONT","canonical_record":{"source":{"id":"2005.10108","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-05-20T15:07:27Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"9fa8feff128698bd2a9879bef7f87158cdf47d648d05a7a17a30634ee7f8ecab","abstract_canon_sha256":"005b5a42b4c88617375633bd3986433ba8380aa6f57e5602bdac783354138908"},"schema_version":"1.0"},"canonical_sha256":"3d1f1939b37b1a63a6db2ee4d59092a47410ca5a381631409c7eef098a6896f8","source":{"kind":"arxiv","id":"2005.10108","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.10108","created_at":"2026-07-05T01:21:01Z"},{"alias_kind":"arxiv_version","alias_value":"2005.10108v1","created_at":"2026-07-05T01:21:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.10108","created_at":"2026-07-05T01:21:01Z"},{"alias_kind":"pith_short_12","alias_value":"HUPRSONTPMNG","created_at":"2026-07-05T01:21:01Z"},{"alias_kind":"pith_short_16","alias_value":"HUPRSONTPMNGHJW3","created_at":"2026-07-05T01:21:01Z"},{"alias_kind":"pith_short_8","alias_value":"HUPRSONT","created_at":"2026-07-05T01:21:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:HUPRSONTPMNGHJW3F3SNLEESUR","target":"record","payload":{"canonical_record":{"source":{"id":"2005.10108","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-05-20T15:07:27Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"9fa8feff128698bd2a9879bef7f87158cdf47d648d05a7a17a30634ee7f8ecab","abstract_canon_sha256":"005b5a42b4c88617375633bd3986433ba8380aa6f57e5602bdac783354138908"},"schema_version":"1.0"},"canonical_sha256":"3d1f1939b37b1a63a6db2ee4d59092a47410ca5a381631409c7eef098a6896f8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:21:01.554322Z","signature_b64":"JMgqIZ39JXUFvjIe4K29+AY9bzN9kkZqIrmTfuGwlgTCwFd58xrwgc6R1RI8s6jgA8/0GXdiIwJSsFGASbaSBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3d1f1939b37b1a63a6db2ee4d59092a47410ca5a381631409c7eef098a6896f8","last_reissued_at":"2026-07-05T01:21:01.553809Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:21:01.553809Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2005.10108","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":"2026-07-05T01:21:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ekrFOCe/E01GdJWWIs7iC2a0mATXXaMSKw9qKkfLw3CE/T2CuDNC2BC+9EGtrKQCJvrb2v7ZLcdfP3J6/HmEBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-17T06:39:19.759373Z"},"content_sha256":"d828bec4b939fe7e42db4456e77735c60d4ec2ac0a75ec1c1559001cbdc77f50","schema_version":"1.0","event_id":"sha256:d828bec4b939fe7e42db4456e77735c60d4ec2ac0a75ec1c1559001cbdc77f50"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:HUPRSONTPMNGHJW3F3SNLEESUR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evolved Massive Stars at Low-metallicity II. Red Supergiant Stars in the Small Magellanic Cloud","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Alceste Z. Bonanos, Bi-Wei Jiang, Frank Tramper, Grigoris Maravelias, Jian Gao, Meng-Yao Xue, Ming Yang, Panagiotis Gavras, Shu Wang, Xiao-Dian Chen, Yi Ren, Zoi T. Spetsieri","submitted_at":"2020-05-20T15:07:27Z","abstract_excerpt":"We present the most comprehensive RSG sample for the SMC up to now, including 1,239 RSG candidates. The initial sample is derived based on a source catalog for the SMC with conservative ranking. Additional spectroscopic RSGs are retrieved from the literature, as well as RSG candidates selected from the inspection of CMDs. We estimate that there are in total $\\sim$ 1,800 or more RSGs in the SMC. We purify the sample by studying the infrared CMDs and the variability of the objects, though there is still an ambiguity between AGBs and RSGs. There are much less RSGs candidates ($\\sim$4\\%) showing P"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.10108","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2005.10108/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T01:21:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s9mPAG/ANpVSb2BAtvNkoWfZ39HP2NJfZ6tcf90m76rYnBL7K7zhL+/+4pLHw/2lVmh1yi1VbNNLvgP+8CAEDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-17T06:39:19.759760Z"},"content_sha256":"2add8db89e930c8f56cfe9da868fc4d294a6943e04b37577e30a86ebb2f53a3b","schema_version":"1.0","event_id":"sha256:2add8db89e930c8f56cfe9da868fc4d294a6943e04b37577e30a86ebb2f53a3b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HUPRSONTPMNGHJW3F3SNLEESUR/bundle.json","state_url":"https://pith.science/pith/HUPRSONTPMNGHJW3F3SNLEESUR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HUPRSONTPMNGHJW3F3SNLEESUR/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":"2026-07-17T06:39:19Z","links":{"resolver":"https://pith.science/pith/HUPRSONTPMNGHJW3F3SNLEESUR","bundle":"https://pith.science/pith/HUPRSONTPMNGHJW3F3SNLEESUR/bundle.json","state":"https://pith.science/pith/HUPRSONTPMNGHJW3F3SNLEESUR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HUPRSONTPMNGHJW3F3SNLEESUR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:HUPRSONTPMNGHJW3F3SNLEESUR","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":"005b5a42b4c88617375633bd3986433ba8380aa6f57e5602bdac783354138908","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-05-20T15:07:27Z","title_canon_sha256":"9fa8feff128698bd2a9879bef7f87158cdf47d648d05a7a17a30634ee7f8ecab"},"schema_version":"1.0","source":{"id":"2005.10108","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.10108","created_at":"2026-07-05T01:21:01Z"},{"alias_kind":"arxiv_version","alias_value":"2005.10108v1","created_at":"2026-07-05T01:21:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.10108","created_at":"2026-07-05T01:21:01Z"},{"alias_kind":"pith_short_12","alias_value":"HUPRSONTPMNG","created_at":"2026-07-05T01:21:01Z"},{"alias_kind":"pith_short_16","alias_value":"HUPRSONTPMNGHJW3","created_at":"2026-07-05T01:21:01Z"},{"alias_kind":"pith_short_8","alias_value":"HUPRSONT","created_at":"2026-07-05T01:21:01Z"}],"graph_snapshots":[{"event_id":"sha256:2add8db89e930c8f56cfe9da868fc4d294a6943e04b37577e30a86ebb2f53a3b","target":"graph","created_at":"2026-07-05T01:21:01Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2005.10108/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the most comprehensive RSG sample for the SMC up to now, including 1,239 RSG candidates. The initial sample is derived based on a source catalog for the SMC with conservative ranking. Additional spectroscopic RSGs are retrieved from the literature, as well as RSG candidates selected from the inspection of CMDs. We estimate that there are in total $\\sim$ 1,800 or more RSGs in the SMC. We purify the sample by studying the infrared CMDs and the variability of the objects, though there is still an ambiguity between AGBs and RSGs. There are much less RSGs candidates ($\\sim$4\\%) showing P","authors_text":"Alceste Z. Bonanos, Bi-Wei Jiang, Frank Tramper, Grigoris Maravelias, Jian Gao, Meng-Yao Xue, Ming Yang, Panagiotis Gavras, Shu Wang, Xiao-Dian Chen, Yi Ren, Zoi T. Spetsieri","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-05-20T15:07:27Z","title":"Evolved Massive Stars at Low-metallicity II. Red Supergiant Stars in the Small Magellanic Cloud"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.10108","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:d828bec4b939fe7e42db4456e77735c60d4ec2ac0a75ec1c1559001cbdc77f50","target":"record","created_at":"2026-07-05T01:21:01Z","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":"005b5a42b4c88617375633bd3986433ba8380aa6f57e5602bdac783354138908","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-05-20T15:07:27Z","title_canon_sha256":"9fa8feff128698bd2a9879bef7f87158cdf47d648d05a7a17a30634ee7f8ecab"},"schema_version":"1.0","source":{"id":"2005.10108","kind":"arxiv","version":1}},"canonical_sha256":"3d1f1939b37b1a63a6db2ee4d59092a47410ca5a381631409c7eef098a6896f8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3d1f1939b37b1a63a6db2ee4d59092a47410ca5a381631409c7eef098a6896f8","first_computed_at":"2026-07-05T01:21:01.553809Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:21:01.553809Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JMgqIZ39JXUFvjIe4K29+AY9bzN9kkZqIrmTfuGwlgTCwFd58xrwgc6R1RI8s6jgA8/0GXdiIwJSsFGASbaSBg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:21:01.554322Z","signed_message":"canonical_sha256_bytes"},"source_id":"2005.10108","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d828bec4b939fe7e42db4456e77735c60d4ec2ac0a75ec1c1559001cbdc77f50","sha256:2add8db89e930c8f56cfe9da868fc4d294a6943e04b37577e30a86ebb2f53a3b"],"state_sha256":"fee672c8bf4c8248eb8c76b862bde3b6ae22ac0d9725dded642090c2ef02f3d7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P+AY+pRZT4d86U9FsIMQ1guuFcVKz95HF+th8e1G9emOcPEJaX+io6TDrLHqT6Ywh8GcmQmr0DeZe3gG1zeQAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-17T06:39:19.762033Z","bundle_sha256":"623dfe61757a294470f5c80f54049047b549fd131d4edb9e0d8dd450fd470be0"}}