{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:5LRWFB74IHTLO2OHTHMBDR2NMM","short_pith_number":"pith:5LRWFB74","canonical_record":{"source":{"id":"1002.3414","kind":"arxiv","version":6},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-02-18T18:43:02Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"76e662818c8a3c8baeb09de4643057ab51604d7540f51f8fe0f8f947f714759d","abstract_canon_sha256":"73d27fd0ff33c8d116699df22cc4dee5505a14b1cce06ae600f83c2355bb4411"},"schema_version":"1.0"},"canonical_sha256":"eae36287fc41e6b769c799d811c74d631aa274d78af6e4e12d0db8d38fe27da3","source":{"kind":"arxiv","id":"1002.3414","version":6},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.3414","created_at":"2026-05-18T02:24:38Z"},{"alias_kind":"arxiv_version","alias_value":"1002.3414v6","created_at":"2026-05-18T02:24:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.3414","created_at":"2026-05-18T02:24:38Z"},{"alias_kind":"pith_short_12","alias_value":"5LRWFB74IHTL","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"5LRWFB74IHTLO2OH","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"5LRWFB74","created_at":"2026-05-18T12:26:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:5LRWFB74IHTLO2OHTHMBDR2NMM","target":"record","payload":{"canonical_record":{"source":{"id":"1002.3414","kind":"arxiv","version":6},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-02-18T18:43:02Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"76e662818c8a3c8baeb09de4643057ab51604d7540f51f8fe0f8f947f714759d","abstract_canon_sha256":"73d27fd0ff33c8d116699df22cc4dee5505a14b1cce06ae600f83c2355bb4411"},"schema_version":"1.0"},"canonical_sha256":"eae36287fc41e6b769c799d811c74d631aa274d78af6e4e12d0db8d38fe27da3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:24:38.781414Z","signature_b64":"HC7ab81YhrmBsj8/zi/ROmk5xMgHDxcrcSYNRHA9YcKpu01d/7Bzi85s/PZLLW7sTrggYOb7PMPCfSzfloDZCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eae36287fc41e6b769c799d811c74d631aa274d78af6e4e12d0db8d38fe27da3","last_reissued_at":"2026-05-18T02:24:38.780919Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:24:38.780919Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1002.3414","source_version":6,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:24:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O0xTWuZWpJo8glIPE4N5U6AguAwO1lNDHKuGdv6nk1kREuS9pqgxX4ShL5mQvb+bxwI3cU3Z4IRRQpw2PZ49Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T10:51:23.980461Z"},"content_sha256":"6628c941bd583140e39ebc94bf8601f2104278e3ed3338c08cb580fcb1aa41fc","schema_version":"1.0","event_id":"sha256:6628c941bd583140e39ebc94bf8601f2104278e3ed3338c08cb580fcb1aa41fc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:5LRWFB74IHTLO2OHTHMBDR2NMM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The early UV/Optical emission from core-collapse supernovae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"Eli Waxman (Weizmann Inst.), Itay Rabinak","submitted_at":"2010-02-18T18:43:02Z","abstract_excerpt":"We derive a simple approximate model describing the early, hours to days, UV/optical supernova emission, which is produced by the expansion of the outer <~0.01 solar mass part of the shock-heated envelope, and precedes the optical emission driven by radioactive decay. Our model includes an approximate description of the time dependence of the opacity (due mainly to recombination), and of the deviation of the emitted spectrum from a black body spectrum. We show that the characteristics of the early UV/O emission constrain the radius of the progenitor star, its envelope composition, and the rati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.3414","kind":"arxiv","version":6},"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":"2026-05-18T02:24:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DRpgsKQWkUUcQS0RBETnz2pvPxFw0jLleLQKOF631HiEsdoy3b6AZ5t5p7Is0dY1Zpa2BoHpfls5YbweeaV/CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T10:51:23.980901Z"},"content_sha256":"b007d0041c1f7723037f2add46e48eefa94d95f4e1e84090623017aadda615f5","schema_version":"1.0","event_id":"sha256:b007d0041c1f7723037f2add46e48eefa94d95f4e1e84090623017aadda615f5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5LRWFB74IHTLO2OHTHMBDR2NMM/bundle.json","state_url":"https://pith.science/pith/5LRWFB74IHTLO2OHTHMBDR2NMM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5LRWFB74IHTLO2OHTHMBDR2NMM/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":"2026-05-31T10:51:23Z","links":{"resolver":"https://pith.science/pith/5LRWFB74IHTLO2OHTHMBDR2NMM","bundle":"https://pith.science/pith/5LRWFB74IHTLO2OHTHMBDR2NMM/bundle.json","state":"https://pith.science/pith/5LRWFB74IHTLO2OHTHMBDR2NMM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5LRWFB74IHTLO2OHTHMBDR2NMM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:5LRWFB74IHTLO2OHTHMBDR2NMM","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":"73d27fd0ff33c8d116699df22cc4dee5505a14b1cce06ae600f83c2355bb4411","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-02-18T18:43:02Z","title_canon_sha256":"76e662818c8a3c8baeb09de4643057ab51604d7540f51f8fe0f8f947f714759d"},"schema_version":"1.0","source":{"id":"1002.3414","kind":"arxiv","version":6}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.3414","created_at":"2026-05-18T02:24:38Z"},{"alias_kind":"arxiv_version","alias_value":"1002.3414v6","created_at":"2026-05-18T02:24:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.3414","created_at":"2026-05-18T02:24:38Z"},{"alias_kind":"pith_short_12","alias_value":"5LRWFB74IHTL","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"5LRWFB74IHTLO2OH","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"5LRWFB74","created_at":"2026-05-18T12:26:04Z"}],"graph_snapshots":[{"event_id":"sha256:b007d0041c1f7723037f2add46e48eefa94d95f4e1e84090623017aadda615f5","target":"graph","created_at":"2026-05-18T02:24:38Z","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":"We derive a simple approximate model describing the early, hours to days, UV/optical supernova emission, which is produced by the expansion of the outer <~0.01 solar mass part of the shock-heated envelope, and precedes the optical emission driven by radioactive decay. Our model includes an approximate description of the time dependence of the opacity (due mainly to recombination), and of the deviation of the emitted spectrum from a black body spectrum. We show that the characteristics of the early UV/O emission constrain the radius of the progenitor star, its envelope composition, and the rati","authors_text":"Eli Waxman (Weizmann Inst.), Itay Rabinak","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-02-18T18:43:02Z","title":"The early UV/Optical emission from core-collapse supernovae"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.3414","kind":"arxiv","version":6},"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":"sha256:6628c941bd583140e39ebc94bf8601f2104278e3ed3338c08cb580fcb1aa41fc","target":"record","created_at":"2026-05-18T02:24:38Z","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":"73d27fd0ff33c8d116699df22cc4dee5505a14b1cce06ae600f83c2355bb4411","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2010-02-18T18:43:02Z","title_canon_sha256":"76e662818c8a3c8baeb09de4643057ab51604d7540f51f8fe0f8f947f714759d"},"schema_version":"1.0","source":{"id":"1002.3414","kind":"arxiv","version":6}},"canonical_sha256":"eae36287fc41e6b769c799d811c74d631aa274d78af6e4e12d0db8d38fe27da3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eae36287fc41e6b769c799d811c74d631aa274d78af6e4e12d0db8d38fe27da3","first_computed_at":"2026-05-18T02:24:38.780919Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:24:38.780919Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HC7ab81YhrmBsj8/zi/ROmk5xMgHDxcrcSYNRHA9YcKpu01d/7Bzi85s/PZLLW7sTrggYOb7PMPCfSzfloDZCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:24:38.781414Z","signed_message":"canonical_sha256_bytes"},"source_id":"1002.3414","source_kind":"arxiv","source_version":6}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6628c941bd583140e39ebc94bf8601f2104278e3ed3338c08cb580fcb1aa41fc","sha256:b007d0041c1f7723037f2add46e48eefa94d95f4e1e84090623017aadda615f5"],"state_sha256":"9c9be7b2c88cb8fb294b3fa49bb48534d2f71ef1dc6e2ddfa669ef7c46448620"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y6GvwNQFypASGondohxPsg3F9sliHCmczUMZMcDqqDwXDQ6mrHpkWx8YXR1kWH6KUuWRSS8d+gdH5KWFRnFLBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T10:51:23.983750Z","bundle_sha256":"c0e9cda1124c43c251d4d541b0bf74875fa0eef545b1b54829abd65f9a5a04dd"}}