{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:I7YHZXZ2OLYGADMIGTJN22SB2N","short_pith_number":"pith:I7YHZXZ2","canonical_record":{"source":{"id":"astro-ph/0610829","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-10-27T19:30:17Z","cross_cats_sorted":[],"title_canon_sha256":"726cf36ebc9a572ebdd5a3db3fb9ecb0a9ac10e5eb5116a33dfcc28170c89f5c","abstract_canon_sha256":"6aea4888270afac608ce786810699f308bb542fd6709870b5e7eccfc0934c76b"},"schema_version":"1.0"},"canonical_sha256":"47f07cdf3a72f0600d8834d2dd6a41d34718af125843372d2b661059d1e750ab","source":{"kind":"arxiv","id":"astro-ph/0610829","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0610829","created_at":"2026-07-04T15:16:58Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0610829v2","created_at":"2026-07-04T15:16:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0610829","created_at":"2026-07-04T15:16:58Z"},{"alias_kind":"pith_short_12","alias_value":"I7YHZXZ2OLYG","created_at":"2026-07-04T15:16:58Z"},{"alias_kind":"pith_short_16","alias_value":"I7YHZXZ2OLYGADMI","created_at":"2026-07-04T15:16:58Z"},{"alias_kind":"pith_short_8","alias_value":"I7YHZXZ2","created_at":"2026-07-04T15:16:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:I7YHZXZ2OLYGADMIGTJN22SB2N","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0610829","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-10-27T19:30:17Z","cross_cats_sorted":[],"title_canon_sha256":"726cf36ebc9a572ebdd5a3db3fb9ecb0a9ac10e5eb5116a33dfcc28170c89f5c","abstract_canon_sha256":"6aea4888270afac608ce786810699f308bb542fd6709870b5e7eccfc0934c76b"},"schema_version":"1.0"},"canonical_sha256":"47f07cdf3a72f0600d8834d2dd6a41d34718af125843372d2b661059d1e750ab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:16:58.184652Z","signature_b64":"V+uF1RkovEEUwwAIBuHcS8y5ylp0YE/W8GtmaFkbinqsmfhnkToFyXzX+LQt6Phy8mQogGCOwVZ07KmQTar9CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"47f07cdf3a72f0600d8834d2dd6a41d34718af125843372d2b661059d1e750ab","last_reissued_at":"2026-07-04T15:16:58.184275Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:16:58.184275Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0610829","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":"2026-07-04T15:16:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Bmd4/azdNcHc1bdm1dS04JpdR7jQOAk2isbu+OIooZSgenJszfvO2DXfbcLYYTaSaRfZY3ol6+6Em4g9l2opBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T08:31:54.020737Z"},"content_sha256":"1f2198867392903398551d4f890925febcf3b2cf87248c06c67910a3b695ce43","schema_version":"1.0","event_id":"sha256:1f2198867392903398551d4f890925febcf3b2cf87248c06c67910a3b695ce43"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:I7YHZXZ2OLYGADMIGTJN22SB2N","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Search for Gravitational Waves in the CMB After WMAP3: Foreground Confusion and The Optimal Frequency Coverage for Foreground Minimization","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Alexandre Amblard, Asantha Cooray, Manoj Kaplinghat","submitted_at":"2006-10-27T19:30:17Z","abstract_excerpt":"B-modes of Cosmic Microwave Background (CMB) polarization can be created by a primordial gravitational wave background. If this background was created by Inflation, then the amplitude of the polarization signal is proportional the energy density of the universe during inflation. The primordial signal will be contaminated by polarized foregrounds including dust and synchrotron emission within the galaxy. In light of the WMAP polarization maps, we consider the ability of several hypothetical CMB polarization experiments to separate primordial CMB B-mode signal from galactic foregrounds. We also "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0610829","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0610829/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":"2026-07-04T15:16:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+yoZqscoImsP7Dm22vWSZG3eLWzFdvNv3Yu8HW7utFnBcD+G54hbZFyKp7bZO6gYCf36e3lU9lmKEnhhSYL6CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T08:31:54.021636Z"},"content_sha256":"7aec8f863a53217d829d201098a7b5c1053eb6c2215a0b6d2d1fffef243a72e1","schema_version":"1.0","event_id":"sha256:7aec8f863a53217d829d201098a7b5c1053eb6c2215a0b6d2d1fffef243a72e1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I7YHZXZ2OLYGADMIGTJN22SB2N/bundle.json","state_url":"https://pith.science/pith/I7YHZXZ2OLYGADMIGTJN22SB2N/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I7YHZXZ2OLYGADMIGTJN22SB2N/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":"2026-08-06T08:31:54Z","links":{"resolver":"https://pith.science/pith/I7YHZXZ2OLYGADMIGTJN22SB2N","bundle":"https://pith.science/pith/I7YHZXZ2OLYGADMIGTJN22SB2N/bundle.json","state":"https://pith.science/pith/I7YHZXZ2OLYGADMIGTJN22SB2N/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I7YHZXZ2OLYGADMIGTJN22SB2N/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:I7YHZXZ2OLYGADMIGTJN22SB2N","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":"6aea4888270afac608ce786810699f308bb542fd6709870b5e7eccfc0934c76b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-10-27T19:30:17Z","title_canon_sha256":"726cf36ebc9a572ebdd5a3db3fb9ecb0a9ac10e5eb5116a33dfcc28170c89f5c"},"schema_version":"1.0","source":{"id":"astro-ph/0610829","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0610829","created_at":"2026-07-04T15:16:58Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0610829v2","created_at":"2026-07-04T15:16:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0610829","created_at":"2026-07-04T15:16:58Z"},{"alias_kind":"pith_short_12","alias_value":"I7YHZXZ2OLYG","created_at":"2026-07-04T15:16:58Z"},{"alias_kind":"pith_short_16","alias_value":"I7YHZXZ2OLYGADMI","created_at":"2026-07-04T15:16:58Z"},{"alias_kind":"pith_short_8","alias_value":"I7YHZXZ2","created_at":"2026-07-04T15:16:58Z"}],"graph_snapshots":[{"event_id":"sha256:7aec8f863a53217d829d201098a7b5c1053eb6c2215a0b6d2d1fffef243a72e1","target":"graph","created_at":"2026-07-04T15:16:58Z","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/0610829/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"B-modes of Cosmic Microwave Background (CMB) polarization can be created by a primordial gravitational wave background. If this background was created by Inflation, then the amplitude of the polarization signal is proportional the energy density of the universe during inflation. The primordial signal will be contaminated by polarized foregrounds including dust and synchrotron emission within the galaxy. In light of the WMAP polarization maps, we consider the ability of several hypothetical CMB polarization experiments to separate primordial CMB B-mode signal from galactic foregrounds. We also ","authors_text":"Alexandre Amblard, Asantha Cooray, Manoj Kaplinghat","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-10-27T19:30:17Z","title":"Search for Gravitational Waves in the CMB After WMAP3: Foreground Confusion and The Optimal Frequency Coverage for Foreground Minimization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0610829","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":"sha256:1f2198867392903398551d4f890925febcf3b2cf87248c06c67910a3b695ce43","target":"record","created_at":"2026-07-04T15:16:58Z","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":"6aea4888270afac608ce786810699f308bb542fd6709870b5e7eccfc0934c76b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-10-27T19:30:17Z","title_canon_sha256":"726cf36ebc9a572ebdd5a3db3fb9ecb0a9ac10e5eb5116a33dfcc28170c89f5c"},"schema_version":"1.0","source":{"id":"astro-ph/0610829","kind":"arxiv","version":2}},"canonical_sha256":"47f07cdf3a72f0600d8834d2dd6a41d34718af125843372d2b661059d1e750ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"47f07cdf3a72f0600d8834d2dd6a41d34718af125843372d2b661059d1e750ab","first_computed_at":"2026-07-04T15:16:58.184275Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:16:58.184275Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V+uF1RkovEEUwwAIBuHcS8y5ylp0YE/W8GtmaFkbinqsmfhnkToFyXzX+LQt6Phy8mQogGCOwVZ07KmQTar9CA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:16:58.184652Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0610829","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1f2198867392903398551d4f890925febcf3b2cf87248c06c67910a3b695ce43","sha256:7aec8f863a53217d829d201098a7b5c1053eb6c2215a0b6d2d1fffef243a72e1"],"state_sha256":"35d18f19be8ccf952e521ae5cb542986b3bb04902471f890972c56c35b7f339c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Wv413429LVeVS9OrkB/lXKh+BRCkrwpGssgDKUtj579zQr8YfkkKCXds26dOS02eZTEvm1yGnvo6z8EnpgnVDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T08:31:54.029163Z","bundle_sha256":"f86c252989b1020dc7bc391ca06fdbd59405ba547bb2bd1ad0cb1c677c93c943"}}