{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:53HW6SVEO5LKCV2M5KRDCN4SGT","short_pith_number":"pith:53HW6SVE","canonical_record":{"source":{"id":"1803.00941","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-02T16:38:18Z","cross_cats_sorted":[],"title_canon_sha256":"beecde10ba5eafb994effe3cc552d519060729fee22e48253f6c84bd55e75f18","abstract_canon_sha256":"b1d3bb47e0aa83a29f5f3f8f552976898a1cc68d80668b6c6a0ccff153579925"},"schema_version":"1.0"},"canonical_sha256":"eecf6f4aa47756a1574ceaa231379234c6049d7cbfba943fae9817421425ba6b","source":{"kind":"arxiv","id":"1803.00941","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.00941","created_at":"2026-05-18T00:22:07Z"},{"alias_kind":"arxiv_version","alias_value":"1803.00941v1","created_at":"2026-05-18T00:22:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.00941","created_at":"2026-05-18T00:22:07Z"},{"alias_kind":"pith_short_12","alias_value":"53HW6SVEO5LK","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"53HW6SVEO5LKCV2M","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"53HW6SVE","created_at":"2026-05-18T12:32:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:53HW6SVEO5LKCV2M5KRDCN4SGT","target":"record","payload":{"canonical_record":{"source":{"id":"1803.00941","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-02T16:38:18Z","cross_cats_sorted":[],"title_canon_sha256":"beecde10ba5eafb994effe3cc552d519060729fee22e48253f6c84bd55e75f18","abstract_canon_sha256":"b1d3bb47e0aa83a29f5f3f8f552976898a1cc68d80668b6c6a0ccff153579925"},"schema_version":"1.0"},"canonical_sha256":"eecf6f4aa47756a1574ceaa231379234c6049d7cbfba943fae9817421425ba6b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:22:07.397257Z","signature_b64":"DZRs1r6wHy61jZkyViWY1nlmAo2CS3VtpRzJv8vTWtQg25grQ5xlIHkCUX1gNQ//Z4QJoM6zSas6EdTdvK82DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eecf6f4aa47756a1574ceaa231379234c6049d7cbfba943fae9817421425ba6b","last_reissued_at":"2026-05-18T00:22:07.396552Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:22:07.396552Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.00941","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":"2026-05-18T00:22:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R+fIZH2GKfJa5QRdCOT9gYhV8H3TanR1Lw37PvtfJqRXSbwkp9FW3lB9wRrnC2+Iw7MgEEaVKtkH4eJw5wzSCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T07:48:40.414736Z"},"content_sha256":"03f4d917810ec346d8d39ccd7c2962f742d5819c135c72b27a93734e29636159","schema_version":"1.0","event_id":"sha256:03f4d917810ec346d8d39ccd7c2962f742d5819c135c72b27a93734e29636159"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:53HW6SVEO5LKCV2M5KRDCN4SGT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ignition of detonation in accreted helium","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Almog Yalinewich, Ami Glasner, Elad Steinberg, Eli Livne, James W. Truran","submitted_at":"2018-03-02T16:38:18Z","abstract_excerpt":"Sub-Chandrasekhar CO white dwarfs accreting helium have been considered as candidates for Type Ia supernova(SNIa) progenitors since the early 1980s (helium shell mass $> 0.1 M_\\odot $). These models, once detonated did not fit the observed spectra and light curve of typical SNIa observations. New theoretical work examined detonations on much less massive ($< 0.05 M_\\odot $) envelopes. They find stable detonations that lead to light curves, spectra and abundances that compare relatively well with the observational data. The exact mechanism leading to the ignition of helium detonation is a key i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.00941","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":"2026-05-18T00:22:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"igcvp0CsfYF2bSPtXT5ck3IxvKERu6pn6zKnthytd6psCzgW2+UWT5mPAEOQMXcPtOETgWp20eCctkNMW7DnAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T07:48:40.415077Z"},"content_sha256":"85c5424941f270a83dfcb7de1abab5fbc707501aeb67ca837efa6b90bd80c9c4","schema_version":"1.0","event_id":"sha256:85c5424941f270a83dfcb7de1abab5fbc707501aeb67ca837efa6b90bd80c9c4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/53HW6SVEO5LKCV2M5KRDCN4SGT/bundle.json","state_url":"https://pith.science/pith/53HW6SVEO5LKCV2M5KRDCN4SGT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/53HW6SVEO5LKCV2M5KRDCN4SGT/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":"2026-06-01T07:48:40Z","links":{"resolver":"https://pith.science/pith/53HW6SVEO5LKCV2M5KRDCN4SGT","bundle":"https://pith.science/pith/53HW6SVEO5LKCV2M5KRDCN4SGT/bundle.json","state":"https://pith.science/pith/53HW6SVEO5LKCV2M5KRDCN4SGT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/53HW6SVEO5LKCV2M5KRDCN4SGT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:53HW6SVEO5LKCV2M5KRDCN4SGT","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":"b1d3bb47e0aa83a29f5f3f8f552976898a1cc68d80668b6c6a0ccff153579925","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-02T16:38:18Z","title_canon_sha256":"beecde10ba5eafb994effe3cc552d519060729fee22e48253f6c84bd55e75f18"},"schema_version":"1.0","source":{"id":"1803.00941","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.00941","created_at":"2026-05-18T00:22:07Z"},{"alias_kind":"arxiv_version","alias_value":"1803.00941v1","created_at":"2026-05-18T00:22:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.00941","created_at":"2026-05-18T00:22:07Z"},{"alias_kind":"pith_short_12","alias_value":"53HW6SVEO5LK","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"53HW6SVEO5LKCV2M","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"53HW6SVE","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:85c5424941f270a83dfcb7de1abab5fbc707501aeb67ca837efa6b90bd80c9c4","target":"graph","created_at":"2026-05-18T00:22:07Z","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":"Sub-Chandrasekhar CO white dwarfs accreting helium have been considered as candidates for Type Ia supernova(SNIa) progenitors since the early 1980s (helium shell mass $> 0.1 M_\\odot $). These models, once detonated did not fit the observed spectra and light curve of typical SNIa observations. New theoretical work examined detonations on much less massive ($< 0.05 M_\\odot $) envelopes. They find stable detonations that lead to light curves, spectra and abundances that compare relatively well with the observational data. The exact mechanism leading to the ignition of helium detonation is a key i","authors_text":"Almog Yalinewich, Ami Glasner, Elad Steinberg, Eli Livne, James W. Truran","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-02T16:38:18Z","title":"Ignition of detonation in accreted helium"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.00941","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":"sha256:03f4d917810ec346d8d39ccd7c2962f742d5819c135c72b27a93734e29636159","target":"record","created_at":"2026-05-18T00:22:07Z","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":"b1d3bb47e0aa83a29f5f3f8f552976898a1cc68d80668b6c6a0ccff153579925","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-02T16:38:18Z","title_canon_sha256":"beecde10ba5eafb994effe3cc552d519060729fee22e48253f6c84bd55e75f18"},"schema_version":"1.0","source":{"id":"1803.00941","kind":"arxiv","version":1}},"canonical_sha256":"eecf6f4aa47756a1574ceaa231379234c6049d7cbfba943fae9817421425ba6b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eecf6f4aa47756a1574ceaa231379234c6049d7cbfba943fae9817421425ba6b","first_computed_at":"2026-05-18T00:22:07.396552Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:22:07.396552Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DZRs1r6wHy61jZkyViWY1nlmAo2CS3VtpRzJv8vTWtQg25grQ5xlIHkCUX1gNQ//Z4QJoM6zSas6EdTdvK82DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:22:07.397257Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.00941","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:03f4d917810ec346d8d39ccd7c2962f742d5819c135c72b27a93734e29636159","sha256:85c5424941f270a83dfcb7de1abab5fbc707501aeb67ca837efa6b90bd80c9c4"],"state_sha256":"87023be8d244e84595295fe1caefabb78d65f78335635c8b4b439003b6cda5f9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PIr58mn51xgnu3eMUiUP3c06HCmQgbwvhELfe6AX57NRWrYm6xr/XaX5YAUg8HPpsbI3C8bMeUEr14vbGAt2Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T07:48:40.417275Z","bundle_sha256":"a805c8abd9f44794ed3cb854f0a1a7b7c0c148eda1c62ad97260e2f79421e5c8"}}