{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:45IJFJGPMSWZMIUY2BL6YGDGBT","short_pith_number":"pith:45IJFJGP","canonical_record":{"source":{"id":"2507.15960","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-07-21T18:04:07Z","cross_cats_sorted":[],"title_canon_sha256":"1b92b9c4f09c5a525a29df88d813a355baf436f02ca8692a674ff06a1418ef6b","abstract_canon_sha256":"99d9a30919e19d6132f75c857112a9b61a26557d1cfc058ccb1723b733456d8f"},"schema_version":"1.0"},"canonical_sha256":"e75092a4cf64ad962298d057ec18660cd4c2ca42ac0c47213bf133571e8daf41","source":{"kind":"arxiv","id":"2507.15960","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.15960","created_at":"2026-07-05T11:40:59Z"},{"alias_kind":"arxiv_version","alias_value":"2507.15960v1","created_at":"2026-07-05T11:40:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.15960","created_at":"2026-07-05T11:40:59Z"},{"alias_kind":"pith_short_12","alias_value":"45IJFJGPMSWZ","created_at":"2026-07-05T11:40:59Z"},{"alias_kind":"pith_short_16","alias_value":"45IJFJGPMSWZMIUY","created_at":"2026-07-05T11:40:59Z"},{"alias_kind":"pith_short_8","alias_value":"45IJFJGP","created_at":"2026-07-05T11:40:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:45IJFJGPMSWZMIUY2BL6YGDGBT","target":"record","payload":{"canonical_record":{"source":{"id":"2507.15960","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-07-21T18:04:07Z","cross_cats_sorted":[],"title_canon_sha256":"1b92b9c4f09c5a525a29df88d813a355baf436f02ca8692a674ff06a1418ef6b","abstract_canon_sha256":"99d9a30919e19d6132f75c857112a9b61a26557d1cfc058ccb1723b733456d8f"},"schema_version":"1.0"},"canonical_sha256":"e75092a4cf64ad962298d057ec18660cd4c2ca42ac0c47213bf133571e8daf41","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:40:59.970892Z","signature_b64":"DQpquI26zkUt8Io34xNNLJmajzpNpAMW4D/YSWF/tbj0L7fjwYmgt2Uamkk5AjbsRY6HQg1Se5ksUJexNhFEDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e75092a4cf64ad962298d057ec18660cd4c2ca42ac0c47213bf133571e8daf41","last_reissued_at":"2026-07-05T11:40:59.970418Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:40:59.970418Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.15960","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":"2026-07-05T11:40:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RMjiwpHI3GgGTyXsPfuKvlsdhjs+CY+xBHpyMqKe5KZq3lyMx/K297rNkdD0sOAyQHJd1vaAAFTC1eMXxvHSDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T00:51:23.317651Z"},"content_sha256":"9b4efa8538f08474f220bce9d01fd4705e356e3eb8dfb643d0d637a438d05e16","schema_version":"1.0","event_id":"sha256:9b4efa8538f08474f220bce9d01fd4705e356e3eb8dfb643d0d637a438d05e16"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:45IJFJGPMSWZMIUY2BL6YGDGBT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stellar evolution through the Red Supergiant phase","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Cyril Georgy, Sylvia Ekstr\\\"om","submitted_at":"2025-07-21T18:04:07Z","abstract_excerpt":"Massive stars less massive than ~30 Msol evolve into a red supergiant after the main sequence. Given a standard IMF, this means about 80% of all single massive stars will experience this phase. RSGs are dominated by convection, with a radius that may extend up to thousands of solar radii. Their low temperature and gravity make them prone to lose large amounts of masses, either through a pulsationally-driven wind or through mass-loss outburst. RSGs are the progenitors of the most common core-collapse supernovae, the type II. In the present review, we give an overview of our theoretical understa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.15960","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/2507.15960/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":"2026-07-05T11:40:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EybP9jtiyI8whH6OcEIE0ImQKTV3Z4308sMWrvXSbXZuvEyLLzED/6NgMnusgMDZ0OdrmMn73I+P9ifkEcf1AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T00:51:23.318186Z"},"content_sha256":"8947dfa9555686cfa2932e347331e9e4cf568bb3c11bea8ede93a904afe963e3","schema_version":"1.0","event_id":"sha256:8947dfa9555686cfa2932e347331e9e4cf568bb3c11bea8ede93a904afe963e3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/45IJFJGPMSWZMIUY2BL6YGDGBT/bundle.json","state_url":"https://pith.science/pith/45IJFJGPMSWZMIUY2BL6YGDGBT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/45IJFJGPMSWZMIUY2BL6YGDGBT/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":"2026-08-07T00:51:23Z","links":{"resolver":"https://pith.science/pith/45IJFJGPMSWZMIUY2BL6YGDGBT","bundle":"https://pith.science/pith/45IJFJGPMSWZMIUY2BL6YGDGBT/bundle.json","state":"https://pith.science/pith/45IJFJGPMSWZMIUY2BL6YGDGBT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/45IJFJGPMSWZMIUY2BL6YGDGBT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:45IJFJGPMSWZMIUY2BL6YGDGBT","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":"99d9a30919e19d6132f75c857112a9b61a26557d1cfc058ccb1723b733456d8f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-07-21T18:04:07Z","title_canon_sha256":"1b92b9c4f09c5a525a29df88d813a355baf436f02ca8692a674ff06a1418ef6b"},"schema_version":"1.0","source":{"id":"2507.15960","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.15960","created_at":"2026-07-05T11:40:59Z"},{"alias_kind":"arxiv_version","alias_value":"2507.15960v1","created_at":"2026-07-05T11:40:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.15960","created_at":"2026-07-05T11:40:59Z"},{"alias_kind":"pith_short_12","alias_value":"45IJFJGPMSWZ","created_at":"2026-07-05T11:40:59Z"},{"alias_kind":"pith_short_16","alias_value":"45IJFJGPMSWZMIUY","created_at":"2026-07-05T11:40:59Z"},{"alias_kind":"pith_short_8","alias_value":"45IJFJGP","created_at":"2026-07-05T11:40:59Z"}],"graph_snapshots":[{"event_id":"sha256:8947dfa9555686cfa2932e347331e9e4cf568bb3c11bea8ede93a904afe963e3","target":"graph","created_at":"2026-07-05T11:40:59Z","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/2507.15960/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Massive stars less massive than ~30 Msol evolve into a red supergiant after the main sequence. Given a standard IMF, this means about 80% of all single massive stars will experience this phase. RSGs are dominated by convection, with a radius that may extend up to thousands of solar radii. Their low temperature and gravity make them prone to lose large amounts of masses, either through a pulsationally-driven wind or through mass-loss outburst. RSGs are the progenitors of the most common core-collapse supernovae, the type II. In the present review, we give an overview of our theoretical understa","authors_text":"Cyril Georgy, Sylvia Ekstr\\\"om","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-07-21T18:04:07Z","title":"Stellar evolution through the Red Supergiant phase"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.15960","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":"sha256:9b4efa8538f08474f220bce9d01fd4705e356e3eb8dfb643d0d637a438d05e16","target":"record","created_at":"2026-07-05T11:40:59Z","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":"99d9a30919e19d6132f75c857112a9b61a26557d1cfc058ccb1723b733456d8f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2025-07-21T18:04:07Z","title_canon_sha256":"1b92b9c4f09c5a525a29df88d813a355baf436f02ca8692a674ff06a1418ef6b"},"schema_version":"1.0","source":{"id":"2507.15960","kind":"arxiv","version":1}},"canonical_sha256":"e75092a4cf64ad962298d057ec18660cd4c2ca42ac0c47213bf133571e8daf41","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e75092a4cf64ad962298d057ec18660cd4c2ca42ac0c47213bf133571e8daf41","first_computed_at":"2026-07-05T11:40:59.970418Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:40:59.970418Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DQpquI26zkUt8Io34xNNLJmajzpNpAMW4D/YSWF/tbj0L7fjwYmgt2Uamkk5AjbsRY6HQg1Se5ksUJexNhFEDw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:40:59.970892Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.15960","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9b4efa8538f08474f220bce9d01fd4705e356e3eb8dfb643d0d637a438d05e16","sha256:8947dfa9555686cfa2932e347331e9e4cf568bb3c11bea8ede93a904afe963e3"],"state_sha256":"78b9f8cf5a0b7788f5dc882b5c9066d3397c2790edb89daea391f69afbca9b76"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ygZ/NQrx2K24HqiDlseOxldQht0OMivpTZ3/MJDwdzXm5ss4TYvzKftVKvu9+rlSY0EyLXiEEvXyiDgfod0pBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T00:51:23.323666Z","bundle_sha256":"6b9eba7d7606fc57b653642f9ff8070e006adad44154df29485358848fa0c508"}}