{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:JLXRJPVDHT5UCUCIHZSVAJZQ53","short_pith_number":"pith:JLXRJPVD","canonical_record":{"source":{"id":"astro-ph/0610228","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-10-08T11:54:19Z","cross_cats_sorted":[],"title_canon_sha256":"9993a27246921de18a1c7a612251c4c742cc4d795f226be09d18b77a2bacb979","abstract_canon_sha256":"1334cae5edb995499c8ce9344b4b2a607a5837b916f21a028056bea464a9a9a1"},"schema_version":"1.0"},"canonical_sha256":"4aef14bea33cfb4150483e65502730eefbb998aa14fcea46a93333d71763c835","source":{"kind":"arxiv","id":"astro-ph/0610228","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0610228","created_at":"2026-05-18T04:28:57Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0610228v2","created_at":"2026-05-18T04:28:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0610228","created_at":"2026-05-18T04:28:57Z"},{"alias_kind":"pith_short_12","alias_value":"JLXRJPVDHT5U","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"JLXRJPVDHT5UCUCI","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"JLXRJPVD","created_at":"2026-05-18T12:25:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:JLXRJPVDHT5UCUCIHZSVAJZQ53","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0610228","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-10-08T11:54:19Z","cross_cats_sorted":[],"title_canon_sha256":"9993a27246921de18a1c7a612251c4c742cc4d795f226be09d18b77a2bacb979","abstract_canon_sha256":"1334cae5edb995499c8ce9344b4b2a607a5837b916f21a028056bea464a9a9a1"},"schema_version":"1.0"},"canonical_sha256":"4aef14bea33cfb4150483e65502730eefbb998aa14fcea46a93333d71763c835","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:28:57.491201Z","signature_b64":"TTPdgQwbhRs4VyXKC/VQr7SkQ+3/nfQmkQZUcWhhf9zw06sZsC91bNnirckse2nuiZZqTpIn878dGqMGa+HIAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4aef14bea33cfb4150483e65502730eefbb998aa14fcea46a93333d71763c835","last_reissued_at":"2026-05-18T04:28:57.490821Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:28:57.490821Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0610228","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":"2026-05-18T04:28:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zX5wYETUxvgOKYmLgIQ1oZq9cDo0IufBB3d3GyUL9NL9HAn1HAdPs4BcNyBnBkneJJklBerH1JqO0O1f320ZAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T13:17:00.952117Z"},"content_sha256":"d0ac3acc829ff4e54f245a9c8aafa250c6766933ab2b7e30beaa8aff2f33d2ac","schema_version":"1.0","event_id":"sha256:d0ac3acc829ff4e54f245a9c8aafa250c6766933ab2b7e30beaa8aff2f33d2ac"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:JLXRJPVDHT5UCUCIHZSVAJZQ53","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Supernovae in Low-Redshift Galaxy Clusters: the Type-Ia Supernova Rate","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) Caltech, (3) UC Berkeley, (4) UCO/Lick Observatory), Alexei V. Filippenko (3), Avishay Gal-Yam (2), Dan Maoz (1), Keren Sharon (1), Puragra GuhaThakurta (4). ((1) Tel Aviv University","submitted_at":"2006-10-08T11:54:19Z","abstract_excerpt":"Supernova (SN) rates are a potentially powerful diagnostic of star formation history (SFH), metal enrichment, and SN physics, particularly in galaxy clusters with their deep, metal-retaining potentials, and simple SFH. However, a low-redshift cluster SN rate has never been published. We derive the SN rate in galaxy clusters at 0.06<z<0.19, based on type Ia supernovae (SNe Ia) that were discovered by the Wise Observatory Optical Transient Survey. As described in a separate paper, a sample of 140 rich Abell clusters was monitored, in which six cluster SNe Ia were found and confirmed spectroscopi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0610228","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":"2026-05-18T04:28:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PgqE8DSJf9WAUdkTB7kOxUaBlgr4jJJQc7doK1YuiJGMe+3c68NZ9mvchOqr8oUYWCEvMozZXjs4v45g21KrBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T13:17:00.952768Z"},"content_sha256":"e88bd8af528af92e29315eb9e37eab886330a56dc514d0fc82ce3c7fc2a38b0b","schema_version":"1.0","event_id":"sha256:e88bd8af528af92e29315eb9e37eab886330a56dc514d0fc82ce3c7fc2a38b0b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JLXRJPVDHT5UCUCIHZSVAJZQ53/bundle.json","state_url":"https://pith.science/pith/JLXRJPVDHT5UCUCIHZSVAJZQ53/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JLXRJPVDHT5UCUCIHZSVAJZQ53/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":"2026-05-27T13:17:00Z","links":{"resolver":"https://pith.science/pith/JLXRJPVDHT5UCUCIHZSVAJZQ53","bundle":"https://pith.science/pith/JLXRJPVDHT5UCUCIHZSVAJZQ53/bundle.json","state":"https://pith.science/pith/JLXRJPVDHT5UCUCIHZSVAJZQ53/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JLXRJPVDHT5UCUCIHZSVAJZQ53/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:JLXRJPVDHT5UCUCIHZSVAJZQ53","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":"1334cae5edb995499c8ce9344b4b2a607a5837b916f21a028056bea464a9a9a1","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-10-08T11:54:19Z","title_canon_sha256":"9993a27246921de18a1c7a612251c4c742cc4d795f226be09d18b77a2bacb979"},"schema_version":"1.0","source":{"id":"astro-ph/0610228","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0610228","created_at":"2026-05-18T04:28:57Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0610228v2","created_at":"2026-05-18T04:28:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0610228","created_at":"2026-05-18T04:28:57Z"},{"alias_kind":"pith_short_12","alias_value":"JLXRJPVDHT5U","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"JLXRJPVDHT5UCUCI","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"JLXRJPVD","created_at":"2026-05-18T12:25:54Z"}],"graph_snapshots":[{"event_id":"sha256:e88bd8af528af92e29315eb9e37eab886330a56dc514d0fc82ce3c7fc2a38b0b","target":"graph","created_at":"2026-05-18T04:28:57Z","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":"Supernova (SN) rates are a potentially powerful diagnostic of star formation history (SFH), metal enrichment, and SN physics, particularly in galaxy clusters with their deep, metal-retaining potentials, and simple SFH. However, a low-redshift cluster SN rate has never been published. We derive the SN rate in galaxy clusters at 0.06<z<0.19, based on type Ia supernovae (SNe Ia) that were discovered by the Wise Observatory Optical Transient Survey. As described in a separate paper, a sample of 140 rich Abell clusters was monitored, in which six cluster SNe Ia were found and confirmed spectroscopi","authors_text":"(2) Caltech, (3) UC Berkeley, (4) UCO/Lick Observatory), Alexei V. Filippenko (3), Avishay Gal-Yam (2), Dan Maoz (1), Keren Sharon (1), Puragra GuhaThakurta (4). ((1) Tel Aviv University","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-10-08T11:54:19Z","title":"Supernovae in Low-Redshift Galaxy Clusters: the Type-Ia Supernova Rate"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0610228","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:d0ac3acc829ff4e54f245a9c8aafa250c6766933ab2b7e30beaa8aff2f33d2ac","target":"record","created_at":"2026-05-18T04:28:57Z","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":"1334cae5edb995499c8ce9344b4b2a607a5837b916f21a028056bea464a9a9a1","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-10-08T11:54:19Z","title_canon_sha256":"9993a27246921de18a1c7a612251c4c742cc4d795f226be09d18b77a2bacb979"},"schema_version":"1.0","source":{"id":"astro-ph/0610228","kind":"arxiv","version":2}},"canonical_sha256":"4aef14bea33cfb4150483e65502730eefbb998aa14fcea46a93333d71763c835","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4aef14bea33cfb4150483e65502730eefbb998aa14fcea46a93333d71763c835","first_computed_at":"2026-05-18T04:28:57.490821Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:28:57.490821Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TTPdgQwbhRs4VyXKC/VQr7SkQ+3/nfQmkQZUcWhhf9zw06sZsC91bNnirckse2nuiZZqTpIn878dGqMGa+HIAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:28:57.491201Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0610228","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d0ac3acc829ff4e54f245a9c8aafa250c6766933ab2b7e30beaa8aff2f33d2ac","sha256:e88bd8af528af92e29315eb9e37eab886330a56dc514d0fc82ce3c7fc2a38b0b"],"state_sha256":"c854f647245fbcb68c6ad97daef940697894ab8aaa6f3739e9c7d585bc9416bf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lmm1Tysup4qtdsw25WixZzszJCqINsv9tA+GTz5gmTXwBMdmuqPD8oDcLNY9XwFA+l0/7qljGU91E6ybKxlnBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T13:17:00.955297Z","bundle_sha256":"0125cac74ac83439cfaf99bc0c7d4a16a3d6a10f991bf833f3a7dd232d789a2b"}}