{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:RZLQQNBV4XYH4VCMH2PQZT4I36","short_pith_number":"pith:RZLQQNBV","canonical_record":{"source":{"id":"1210.3854","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-14T23:06:20Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"967a794e428ddfcffd1df131f19e459235def27a3298e1ddf682721f2f9ec37d","abstract_canon_sha256":"8d4b1cababb6a8932541bedb8e82577dbf8d9e263298a0a0b4aae4e5884a8a71"},"schema_version":"1.0"},"canonical_sha256":"8e57083435e5f07e544c3e9f0ccf88df8fe6ca75561e244ec221c32f7f7a8abf","source":{"kind":"arxiv","id":"1210.3854","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.3854","created_at":"2026-05-18T01:53:55Z"},{"alias_kind":"arxiv_version","alias_value":"1210.3854v1","created_at":"2026-05-18T01:53:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.3854","created_at":"2026-05-18T01:53:55Z"},{"alias_kind":"pith_short_12","alias_value":"RZLQQNBV4XYH","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"RZLQQNBV4XYH4VCM","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"RZLQQNBV","created_at":"2026-05-18T12:27:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:RZLQQNBV4XYH4VCMH2PQZT4I36","target":"record","payload":{"canonical_record":{"source":{"id":"1210.3854","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-14T23:06:20Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"967a794e428ddfcffd1df131f19e459235def27a3298e1ddf682721f2f9ec37d","abstract_canon_sha256":"8d4b1cababb6a8932541bedb8e82577dbf8d9e263298a0a0b4aae4e5884a8a71"},"schema_version":"1.0"},"canonical_sha256":"8e57083435e5f07e544c3e9f0ccf88df8fe6ca75561e244ec221c32f7f7a8abf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:53:55.535870Z","signature_b64":"hEWwHQnJtWOwBaZXwtkmsFSs6ElasdXkk2+I0cYOhRlbgw1uvtX4djuUenBlLZQ2oAELU1CZc8enofdhRkpOBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8e57083435e5f07e544c3e9f0ccf88df8fe6ca75561e244ec221c32f7f7a8abf","last_reissued_at":"2026-05-18T01:53:55.535288Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:53:55.535288Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.3854","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":"2026-05-18T01:53:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2gBgFWytT+jxLJ8bR7rBgMjLp+qJ8+EQ8gnC6IOAKlxsSIvSYWso84d+4fFbV+EkXOfFUY1pEVjgagpgf7E2AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T19:45:22.523689Z"},"content_sha256":"02bf7abc14244f373ab79786b6a0913bc4a13db9d8f9ffe0143860ac1b41ccee","schema_version":"1.0","event_id":"sha256:02bf7abc14244f373ab79786b6a0913bc4a13db9d8f9ffe0143860ac1b41ccee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:RZLQQNBV4XYH4VCMH2PQZT4I36","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Does a 'stochastic' background of gravitational waves exist in the pulsar timing band?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"D. R. B. Yardley, G. Hobbs, J. S. B. Wyithe, M. J. Keith, R. M. Shannon, R. N. Manchester, V. Ravi","submitted_at":"2012-10-14T23:06:20Z","abstract_excerpt":"We investigate the effects of gravitational waves (GWs) from a simulated population of binary super-massive black holes (SMBHs) on pulsar timing array datasets. We construct a distribution describing the binary SMBH population from an existing semi-analytic galaxy formation model. Using realizations of the binary SMBH population generated from this distribution, we simulate pulsar timing datasets with GW-induced variations. We find that the statistics of these variations do not correspond to an isotropic, stochastic GW background. The \"Hellings & Downs\" correlations between simulated datasets "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.3854","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":"2026-05-18T01:53:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eXmwf1YBejYsXrhVuEq5edpfa+YuVq7L0hW+l9bTZfyWxrw+8erkU1VQOyUwRUywk1tHUxr0LKV4jD4qrWttAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T19:45:22.524408Z"},"content_sha256":"99afbe77d30d90d44c7ccec7343e2ca30485672f8deb5d36be1f520cdaa3e267","schema_version":"1.0","event_id":"sha256:99afbe77d30d90d44c7ccec7343e2ca30485672f8deb5d36be1f520cdaa3e267"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RZLQQNBV4XYH4VCMH2PQZT4I36/bundle.json","state_url":"https://pith.science/pith/RZLQQNBV4XYH4VCMH2PQZT4I36/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RZLQQNBV4XYH4VCMH2PQZT4I36/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":"2026-05-18T19:45:22Z","links":{"resolver":"https://pith.science/pith/RZLQQNBV4XYH4VCMH2PQZT4I36","bundle":"https://pith.science/pith/RZLQQNBV4XYH4VCMH2PQZT4I36/bundle.json","state":"https://pith.science/pith/RZLQQNBV4XYH4VCMH2PQZT4I36/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RZLQQNBV4XYH4VCMH2PQZT4I36/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:RZLQQNBV4XYH4VCMH2PQZT4I36","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":"8d4b1cababb6a8932541bedb8e82577dbf8d9e263298a0a0b4aae4e5884a8a71","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-14T23:06:20Z","title_canon_sha256":"967a794e428ddfcffd1df131f19e459235def27a3298e1ddf682721f2f9ec37d"},"schema_version":"1.0","source":{"id":"1210.3854","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.3854","created_at":"2026-05-18T01:53:55Z"},{"alias_kind":"arxiv_version","alias_value":"1210.3854v1","created_at":"2026-05-18T01:53:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.3854","created_at":"2026-05-18T01:53:55Z"},{"alias_kind":"pith_short_12","alias_value":"RZLQQNBV4XYH","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"RZLQQNBV4XYH4VCM","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"RZLQQNBV","created_at":"2026-05-18T12:27:20Z"}],"graph_snapshots":[{"event_id":"sha256:99afbe77d30d90d44c7ccec7343e2ca30485672f8deb5d36be1f520cdaa3e267","target":"graph","created_at":"2026-05-18T01:53:55Z","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 investigate the effects of gravitational waves (GWs) from a simulated population of binary super-massive black holes (SMBHs) on pulsar timing array datasets. We construct a distribution describing the binary SMBH population from an existing semi-analytic galaxy formation model. Using realizations of the binary SMBH population generated from this distribution, we simulate pulsar timing datasets with GW-induced variations. We find that the statistics of these variations do not correspond to an isotropic, stochastic GW background. The \"Hellings & Downs\" correlations between simulated datasets ","authors_text":"D. R. B. Yardley, G. Hobbs, J. S. B. Wyithe, M. J. Keith, R. M. Shannon, R. N. Manchester, V. Ravi","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-14T23:06:20Z","title":"Does a 'stochastic' background of gravitational waves exist in the pulsar timing band?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.3854","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":"sha256:02bf7abc14244f373ab79786b6a0913bc4a13db9d8f9ffe0143860ac1b41ccee","target":"record","created_at":"2026-05-18T01:53:55Z","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":"8d4b1cababb6a8932541bedb8e82577dbf8d9e263298a0a0b4aae4e5884a8a71","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-14T23:06:20Z","title_canon_sha256":"967a794e428ddfcffd1df131f19e459235def27a3298e1ddf682721f2f9ec37d"},"schema_version":"1.0","source":{"id":"1210.3854","kind":"arxiv","version":1}},"canonical_sha256":"8e57083435e5f07e544c3e9f0ccf88df8fe6ca75561e244ec221c32f7f7a8abf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8e57083435e5f07e544c3e9f0ccf88df8fe6ca75561e244ec221c32f7f7a8abf","first_computed_at":"2026-05-18T01:53:55.535288Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:53:55.535288Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hEWwHQnJtWOwBaZXwtkmsFSs6ElasdXkk2+I0cYOhRlbgw1uvtX4djuUenBlLZQ2oAELU1CZc8enofdhRkpOBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:53:55.535870Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.3854","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:02bf7abc14244f373ab79786b6a0913bc4a13db9d8f9ffe0143860ac1b41ccee","sha256:99afbe77d30d90d44c7ccec7343e2ca30485672f8deb5d36be1f520cdaa3e267"],"state_sha256":"74baab6cbee0d28e68034cf994ae50db5464191abcd76b877c72c3390b875d1a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VgYkXo6MiFCxCuPQejrwmU6/Agu4HHzD+hqwtYfZolFcrn12N/+bekB5ri5kuLrW8wdWrCCUwh8/aSO+goFHCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-18T19:45:22.527055Z","bundle_sha256":"6bb983b6edaad92d5e2f1007aa95d5ae39f9d7532721f8ab47e4485a25b83e27"}}