{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:JT7FMVSO7GH6E7H7ECF5MXXWAA","short_pith_number":"pith:JT7FMVSO","canonical_record":{"source":{"id":"1705.02430","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-06T02:06:46Z","cross_cats_sorted":[],"title_canon_sha256":"d21bac87e2c69eebd136fa9cabbf2b3ab1c3756035cc176305e4c88ed35f0e79","abstract_canon_sha256":"47d395ce41c611054f0f544b00bb319380aecfd41753e3f802c2841c9147ad1f"},"schema_version":"1.0"},"canonical_sha256":"4cfe56564ef98fe27cff208bd65ef6002379134f94daa1a11c89e153face3e89","source":{"kind":"arxiv","id":"1705.02430","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.02430","created_at":"2026-05-18T00:43:49Z"},{"alias_kind":"arxiv_version","alias_value":"1705.02430v2","created_at":"2026-05-18T00:43:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.02430","created_at":"2026-05-18T00:43:49Z"},{"alias_kind":"pith_short_12","alias_value":"JT7FMVSO7GH6","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"JT7FMVSO7GH6E7H7","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"JT7FMVSO","created_at":"2026-05-18T12:31:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:JT7FMVSO7GH6E7H7ECF5MXXWAA","target":"record","payload":{"canonical_record":{"source":{"id":"1705.02430","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-06T02:06:46Z","cross_cats_sorted":[],"title_canon_sha256":"d21bac87e2c69eebd136fa9cabbf2b3ab1c3756035cc176305e4c88ed35f0e79","abstract_canon_sha256":"47d395ce41c611054f0f544b00bb319380aecfd41753e3f802c2841c9147ad1f"},"schema_version":"1.0"},"canonical_sha256":"4cfe56564ef98fe27cff208bd65ef6002379134f94daa1a11c89e153face3e89","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:43:49.986220Z","signature_b64":"WKnaY1JSqm1GkrTs/vOYHIOGynDOeOvj00igeSx22Yq4GUhYo04NLxtsQxvUZ1hJzNgjXh+kK5XQChmHDtTaAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4cfe56564ef98fe27cff208bd65ef6002379134f94daa1a11c89e153face3e89","last_reissued_at":"2026-05-18T00:43:49.985563Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:43:49.985563Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.02430","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:43:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DyQFWaWfoh+WYruaEwFvb3mDhPvE60JQh2ZzlmRzVKr3IeNYQiAlM/ZzJd4tPV0bpVbOKMYCGmjcELgYmD4+AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T16:46:36.592978Z"},"content_sha256":"387600d83ea25fb24c6b7826ab1c97968b470a408e421b28c9fe29d878ba69d4","schema_version":"1.0","event_id":"sha256:387600d83ea25fb24c6b7826ab1c97968b470a408e421b28c9fe29d878ba69d4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:JT7FMVSO7GH6E7H7ECF5MXXWAA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Radii and Mass-loss Rates of Type IIb Supernova Progenitors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Keiichi Maeda, Ryoma Ouchi","submitted_at":"2017-05-06T02:06:46Z","abstract_excerpt":"Several Type IIb supernovae (SNe IIb) have been extensively studied, both in terms of the progenitor radius and the mass-loss rate in the final centuries before the explosion. While the sample is still limited, evidence has been accumulating that the final mass-loss rate tends to be larger for a more extended progenitor, with the difference exceeding an order of magnitude between the more and less extended progenitors. The high mass-loss rates inferred for the more extended progenitors are not readily explained by a prescription commonly used for a single stellar wind. In this paper, we calcul"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.02430","kind":"arxiv","version":2},"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":"2026-05-18T00:43:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xALkrmu1tyCDRz9dWhhzdxMlnBVvC1NRR50ppO6E2QI5+ejLAQzjxx85DLSJ6TEfu1jFqQS4f/qHMxj+d4DuDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T16:46:36.593509Z"},"content_sha256":"350efaa4af1b5942a4bcf1f2ac2eb5738053fd9ab615657ca8d0985873645223","schema_version":"1.0","event_id":"sha256:350efaa4af1b5942a4bcf1f2ac2eb5738053fd9ab615657ca8d0985873645223"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JT7FMVSO7GH6E7H7ECF5MXXWAA/bundle.json","state_url":"https://pith.science/pith/JT7FMVSO7GH6E7H7ECF5MXXWAA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JT7FMVSO7GH6E7H7ECF5MXXWAA/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":"2026-06-08T16:46:36Z","links":{"resolver":"https://pith.science/pith/JT7FMVSO7GH6E7H7ECF5MXXWAA","bundle":"https://pith.science/pith/JT7FMVSO7GH6E7H7ECF5MXXWAA/bundle.json","state":"https://pith.science/pith/JT7FMVSO7GH6E7H7ECF5MXXWAA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JT7FMVSO7GH6E7H7ECF5MXXWAA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:JT7FMVSO7GH6E7H7ECF5MXXWAA","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":"47d395ce41c611054f0f544b00bb319380aecfd41753e3f802c2841c9147ad1f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-06T02:06:46Z","title_canon_sha256":"d21bac87e2c69eebd136fa9cabbf2b3ab1c3756035cc176305e4c88ed35f0e79"},"schema_version":"1.0","source":{"id":"1705.02430","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.02430","created_at":"2026-05-18T00:43:49Z"},{"alias_kind":"arxiv_version","alias_value":"1705.02430v2","created_at":"2026-05-18T00:43:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.02430","created_at":"2026-05-18T00:43:49Z"},{"alias_kind":"pith_short_12","alias_value":"JT7FMVSO7GH6","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"JT7FMVSO7GH6E7H7","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"JT7FMVSO","created_at":"2026-05-18T12:31:24Z"}],"graph_snapshots":[{"event_id":"sha256:350efaa4af1b5942a4bcf1f2ac2eb5738053fd9ab615657ca8d0985873645223","target":"graph","created_at":"2026-05-18T00:43:49Z","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":"Several Type IIb supernovae (SNe IIb) have been extensively studied, both in terms of the progenitor radius and the mass-loss rate in the final centuries before the explosion. While the sample is still limited, evidence has been accumulating that the final mass-loss rate tends to be larger for a more extended progenitor, with the difference exceeding an order of magnitude between the more and less extended progenitors. The high mass-loss rates inferred for the more extended progenitors are not readily explained by a prescription commonly used for a single stellar wind. In this paper, we calcul","authors_text":"Keiichi Maeda, Ryoma Ouchi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-06T02:06:46Z","title":"Radii and Mass-loss Rates of Type IIb Supernova Progenitors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.02430","kind":"arxiv","version":2},"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":"sha256:387600d83ea25fb24c6b7826ab1c97968b470a408e421b28c9fe29d878ba69d4","target":"record","created_at":"2026-05-18T00:43:49Z","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":"47d395ce41c611054f0f544b00bb319380aecfd41753e3f802c2841c9147ad1f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-05-06T02:06:46Z","title_canon_sha256":"d21bac87e2c69eebd136fa9cabbf2b3ab1c3756035cc176305e4c88ed35f0e79"},"schema_version":"1.0","source":{"id":"1705.02430","kind":"arxiv","version":2}},"canonical_sha256":"4cfe56564ef98fe27cff208bd65ef6002379134f94daa1a11c89e153face3e89","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4cfe56564ef98fe27cff208bd65ef6002379134f94daa1a11c89e153face3e89","first_computed_at":"2026-05-18T00:43:49.985563Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:43:49.985563Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WKnaY1JSqm1GkrTs/vOYHIOGynDOeOvj00igeSx22Yq4GUhYo04NLxtsQxvUZ1hJzNgjXh+kK5XQChmHDtTaAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:43:49.986220Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.02430","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:387600d83ea25fb24c6b7826ab1c97968b470a408e421b28c9fe29d878ba69d4","sha256:350efaa4af1b5942a4bcf1f2ac2eb5738053fd9ab615657ca8d0985873645223"],"state_sha256":"d3f043ef610f0b8c9cb6e992116c6e11db6dd53333c9d311aadb841cfb0e326a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sRBVZg3s90H5CiFBgduQ0Oirf7riHsJvyY9yUBUBgao0lD1xg69pfZ0Y/9FJU8Q47u+kI+2EW4OqES2dqn74DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T16:46:36.596859Z","bundle_sha256":"f9dc3b0acbe3c2848f9e31d92a165114aa21185886ddbb1e4e5481ea432af420"}}