{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:7TKPSE3FAMYKLYUQYM4OXX3J4S","short_pith_number":"pith:7TKPSE3F","canonical_record":{"source":{"id":"astro-ph/0602533","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-02-24T20:44:47Z","cross_cats_sorted":[],"title_canon_sha256":"8da04f5ed45c076940ceab87c5f24a9bbe425ec09e8bb7100d4decc1c3024372","abstract_canon_sha256":"e3ce7ca5476289bd94e55d6e7b1a1dfc3e79571f9deb2459796b944fa30d6202"},"schema_version":"1.0"},"canonical_sha256":"fcd4f913650330a5e290c338ebdf69e4b710d3e6f28026745b0e00c3524e5cca","source":{"kind":"arxiv","id":"astro-ph/0602533","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0602533","created_at":"2026-07-04T16:58:02Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0602533v1","created_at":"2026-07-04T16:58:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0602533","created_at":"2026-07-04T16:58:02Z"},{"alias_kind":"pith_short_12","alias_value":"7TKPSE3FAMYK","created_at":"2026-07-04T16:58:02Z"},{"alias_kind":"pith_short_16","alias_value":"7TKPSE3FAMYKLYUQ","created_at":"2026-07-04T16:58:02Z"},{"alias_kind":"pith_short_8","alias_value":"7TKPSE3F","created_at":"2026-07-04T16:58:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:7TKPSE3FAMYKLYUQYM4OXX3J4S","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0602533","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-02-24T20:44:47Z","cross_cats_sorted":[],"title_canon_sha256":"8da04f5ed45c076940ceab87c5f24a9bbe425ec09e8bb7100d4decc1c3024372","abstract_canon_sha256":"e3ce7ca5476289bd94e55d6e7b1a1dfc3e79571f9deb2459796b944fa30d6202"},"schema_version":"1.0"},"canonical_sha256":"fcd4f913650330a5e290c338ebdf69e4b710d3e6f28026745b0e00c3524e5cca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:58:02.428546Z","signature_b64":"u6ckAyvjwYAoeyaN4WyJGuOn9QY8f/z0+tRER7K3drGV/jZ3dtT5hubF+M42f5oyIG5vT54bDU7/IFzsLFqpAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fcd4f913650330a5e290c338ebdf69e4b710d3e6f28026745b0e00c3524e5cca","last_reissued_at":"2026-07-04T16:58:02.428206Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:58:02.428206Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0602533","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":"2026-07-04T16:58:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nBbijcOBEEIsa95meeE+OSoDmin17txwmnjVyVkjh9Q/7ssZ5jS9tyy9BEBL5pKo3z7aiAQUv77qat6/m7K7Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T10:16:43.359572Z"},"content_sha256":"78b0ebfb35dec9af53839bf3ab4cb90253dbe13715a710491667292b9b6a776a","schema_version":"1.0","event_id":"sha256:78b0ebfb35dec9af53839bf3ab4cb90253dbe13715a710491667292b9b6a776a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:7TKPSE3FAMYKLYUQYM4OXX3J4S","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"VIRGO sensitivity to binary coalescences and the Population III black hole binaries","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"B. Rudak, K. Belczynski, K. Kulczycki, T. Bulik","submitted_at":"2006-02-24T20:44:47Z","abstract_excerpt":"We analyze the properties of VIRGO detector with the aim of studying its ability to search for coalescing black hole binaries. We focus on the remnants of the Population III stars, which currently should be massive black holes ($\\sim 100-1000 M_\\odot$), some of them bound in binary systems. The coalescence of such binaries due to emission of gravitational waves may be currently observable. We use a binary population synthesis to model the evolution of Population III binaries. We calculate the signal to noise ratios of gravitational waves emitted by the system in each of the coalescence phase: "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0602533","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/astro-ph/0602533/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":"2026-07-04T16:58:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"76CGwgfLoJHtGhnS3S+ft4Rp8XWaeJFbQMGlRzU8hPpjguHChQUaFfr9Q8WShMh8fsuvVSxv3E2wK5cCrACcAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T10:16:43.359946Z"},"content_sha256":"3b77471469e3ea6a3bc0b20db41f74ba0a4628d2ac6e00984036ba89638d911b","schema_version":"1.0","event_id":"sha256:3b77471469e3ea6a3bc0b20db41f74ba0a4628d2ac6e00984036ba89638d911b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7TKPSE3FAMYKLYUQYM4OXX3J4S/bundle.json","state_url":"https://pith.science/pith/7TKPSE3FAMYKLYUQYM4OXX3J4S/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7TKPSE3FAMYKLYUQYM4OXX3J4S/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":"2026-08-18T10:16:43Z","links":{"resolver":"https://pith.science/pith/7TKPSE3FAMYKLYUQYM4OXX3J4S","bundle":"https://pith.science/pith/7TKPSE3FAMYKLYUQYM4OXX3J4S/bundle.json","state":"https://pith.science/pith/7TKPSE3FAMYKLYUQYM4OXX3J4S/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7TKPSE3FAMYKLYUQYM4OXX3J4S/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:7TKPSE3FAMYKLYUQYM4OXX3J4S","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":"e3ce7ca5476289bd94e55d6e7b1a1dfc3e79571f9deb2459796b944fa30d6202","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-02-24T20:44:47Z","title_canon_sha256":"8da04f5ed45c076940ceab87c5f24a9bbe425ec09e8bb7100d4decc1c3024372"},"schema_version":"1.0","source":{"id":"astro-ph/0602533","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0602533","created_at":"2026-07-04T16:58:02Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0602533v1","created_at":"2026-07-04T16:58:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0602533","created_at":"2026-07-04T16:58:02Z"},{"alias_kind":"pith_short_12","alias_value":"7TKPSE3FAMYK","created_at":"2026-07-04T16:58:02Z"},{"alias_kind":"pith_short_16","alias_value":"7TKPSE3FAMYKLYUQ","created_at":"2026-07-04T16:58:02Z"},{"alias_kind":"pith_short_8","alias_value":"7TKPSE3F","created_at":"2026-07-04T16:58:02Z"}],"graph_snapshots":[{"event_id":"sha256:3b77471469e3ea6a3bc0b20db41f74ba0a4628d2ac6e00984036ba89638d911b","target":"graph","created_at":"2026-07-04T16:58:02Z","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/astro-ph/0602533/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We analyze the properties of VIRGO detector with the aim of studying its ability to search for coalescing black hole binaries. We focus on the remnants of the Population III stars, which currently should be massive black holes ($\\sim 100-1000 M_\\odot$), some of them bound in binary systems. The coalescence of such binaries due to emission of gravitational waves may be currently observable. We use a binary population synthesis to model the evolution of Population III binaries. We calculate the signal to noise ratios of gravitational waves emitted by the system in each of the coalescence phase: ","authors_text":"B. Rudak, K. Belczynski, K. Kulczycki, T. Bulik","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-02-24T20:44:47Z","title":"VIRGO sensitivity to binary coalescences and the Population III black hole binaries"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0602533","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":"sha256:78b0ebfb35dec9af53839bf3ab4cb90253dbe13715a710491667292b9b6a776a","target":"record","created_at":"2026-07-04T16:58:02Z","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":"e3ce7ca5476289bd94e55d6e7b1a1dfc3e79571f9deb2459796b944fa30d6202","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-02-24T20:44:47Z","title_canon_sha256":"8da04f5ed45c076940ceab87c5f24a9bbe425ec09e8bb7100d4decc1c3024372"},"schema_version":"1.0","source":{"id":"astro-ph/0602533","kind":"arxiv","version":1}},"canonical_sha256":"fcd4f913650330a5e290c338ebdf69e4b710d3e6f28026745b0e00c3524e5cca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fcd4f913650330a5e290c338ebdf69e4b710d3e6f28026745b0e00c3524e5cca","first_computed_at":"2026-07-04T16:58:02.428206Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:58:02.428206Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u6ckAyvjwYAoeyaN4WyJGuOn9QY8f/z0+tRER7K3drGV/jZ3dtT5hubF+M42f5oyIG5vT54bDU7/IFzsLFqpAA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:58:02.428546Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0602533","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:78b0ebfb35dec9af53839bf3ab4cb90253dbe13715a710491667292b9b6a776a","sha256:3b77471469e3ea6a3bc0b20db41f74ba0a4628d2ac6e00984036ba89638d911b"],"state_sha256":"8a4c4855c25589abc4de1d77e34ef128f49e6f52d2b3e4027b12f025bef05420"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NS8E75GoaZbjbjVpjCcLmF8tny0zacbyS9s9ONHipUcS3dz4qkCTkNiZLGqDmSW0a9ouIjOaV1dACwueYt6pAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T10:16:43.362777Z","bundle_sha256":"6126b7429e205314255df1ffbc63302477f090f26ec71ca73cd28ed7cd9db18f"}}