{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:GGC6RLQYEAQRGIYFHL3STZ3TSN","short_pith_number":"pith:GGC6RLQY","canonical_record":{"source":{"id":"0910.3693","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-19T21:30:40Z","cross_cats_sorted":[],"title_canon_sha256":"9b2fe5c62dc76292cc9c1058a00dc1f2142682a885dc12acf31e1e750e2fa6cb","abstract_canon_sha256":"33cd612a6d1592261bc1a1a8dda78cee4fccb908c10bb226dc8c2f30e57a9216"},"schema_version":"1.0"},"canonical_sha256":"3185e8ae1820211323053af729e773937d4231c8758b7308fbb58b0df1ebcea2","source":{"kind":"arxiv","id":"0910.3693","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.3693","created_at":"2026-05-18T04:17:03Z"},{"alias_kind":"arxiv_version","alias_value":"0910.3693v1","created_at":"2026-05-18T04:17:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.3693","created_at":"2026-05-18T04:17:03Z"},{"alias_kind":"pith_short_12","alias_value":"GGC6RLQYEAQR","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"GGC6RLQYEAQRGIYF","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"GGC6RLQY","created_at":"2026-05-18T12:25:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:GGC6RLQYEAQRGIYFHL3STZ3TSN","target":"record","payload":{"canonical_record":{"source":{"id":"0910.3693","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-19T21:30:40Z","cross_cats_sorted":[],"title_canon_sha256":"9b2fe5c62dc76292cc9c1058a00dc1f2142682a885dc12acf31e1e750e2fa6cb","abstract_canon_sha256":"33cd612a6d1592261bc1a1a8dda78cee4fccb908c10bb226dc8c2f30e57a9216"},"schema_version":"1.0"},"canonical_sha256":"3185e8ae1820211323053af729e773937d4231c8758b7308fbb58b0df1ebcea2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:17:03.463301Z","signature_b64":"3uYUTk4wIWJKAZPxFDNTr1u3Yb0A+ckbY6OJmhfKhB1SR8zKTqwbnfMER5SvmjBLoShMx2pa262+EXOmFE1yCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3185e8ae1820211323053af729e773937d4231c8758b7308fbb58b0df1ebcea2","last_reissued_at":"2026-05-18T04:17:03.462553Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:17:03.462553Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0910.3693","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":"2026-05-18T04:17:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pvALt8QEue1gZfBB87vJ6t7mLQ/ZsOAmDcQHPJ4hfyhiW/0+He6Z+o6FY6W5m/QXheJqJ3B2ORLq+KKNdHmPAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T01:19:52.863503Z"},"content_sha256":"90e7a0c60b5265c5aff0a017b0475af47ba8b2557761dfbd2179bd4982ad3351","schema_version":"1.0","event_id":"sha256:90e7a0c60b5265c5aff0a017b0475af47ba8b2557761dfbd2179bd4982ad3351"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:GGC6RLQYEAQRGIYFHL3STZ3TSN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"New Optimised Estimators for the Primordial Trispectrum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alan Heavens, Asantha Cooray, Dipak Munshi, Joseph Smidt, Paolo Serra, Peter Coles","submitted_at":"2009-10-19T21:30:40Z","abstract_excerpt":"Cosmic microwave background studies of non-Gaussianity involving higher-order multispectra can distinguish between early universe theories that predict nearly identical power spectra. However, the recovery of higher-order multispectra is difficult from realistic data due to their complex response to inhomogeneous noise and partial sky coverage, which are often difficult to model analytically. A traditional alternative is to use one-point cumulants of various orders, which collapse the information present in a multispectrum to one number. The disadvantage of such a radical compression of the da"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.3693","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":"2026-05-18T04:17:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jazjHC314MPHRh53w4++6aSZBiqFe6DQgM+6CF0+QyJWOZ8UwkE8c8wEKz8SJFiLMExcjQ4qYa2N24gxnwrkCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T01:19:52.863868Z"},"content_sha256":"a2e0c4f6cba9723d1d793eb3ed2760ef2970c4ceefe513a2064e47a5576963e5","schema_version":"1.0","event_id":"sha256:a2e0c4f6cba9723d1d793eb3ed2760ef2970c4ceefe513a2064e47a5576963e5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GGC6RLQYEAQRGIYFHL3STZ3TSN/bundle.json","state_url":"https://pith.science/pith/GGC6RLQYEAQRGIYFHL3STZ3TSN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GGC6RLQYEAQRGIYFHL3STZ3TSN/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":"2026-06-02T01:19:52Z","links":{"resolver":"https://pith.science/pith/GGC6RLQYEAQRGIYFHL3STZ3TSN","bundle":"https://pith.science/pith/GGC6RLQYEAQRGIYFHL3STZ3TSN/bundle.json","state":"https://pith.science/pith/GGC6RLQYEAQRGIYFHL3STZ3TSN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GGC6RLQYEAQRGIYFHL3STZ3TSN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:GGC6RLQYEAQRGIYFHL3STZ3TSN","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":"33cd612a6d1592261bc1a1a8dda78cee4fccb908c10bb226dc8c2f30e57a9216","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-19T21:30:40Z","title_canon_sha256":"9b2fe5c62dc76292cc9c1058a00dc1f2142682a885dc12acf31e1e750e2fa6cb"},"schema_version":"1.0","source":{"id":"0910.3693","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.3693","created_at":"2026-05-18T04:17:03Z"},{"alias_kind":"arxiv_version","alias_value":"0910.3693v1","created_at":"2026-05-18T04:17:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.3693","created_at":"2026-05-18T04:17:03Z"},{"alias_kind":"pith_short_12","alias_value":"GGC6RLQYEAQR","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"GGC6RLQYEAQRGIYF","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"GGC6RLQY","created_at":"2026-05-18T12:25:59Z"}],"graph_snapshots":[{"event_id":"sha256:a2e0c4f6cba9723d1d793eb3ed2760ef2970c4ceefe513a2064e47a5576963e5","target":"graph","created_at":"2026-05-18T04:17:03Z","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":"Cosmic microwave background studies of non-Gaussianity involving higher-order multispectra can distinguish between early universe theories that predict nearly identical power spectra. However, the recovery of higher-order multispectra is difficult from realistic data due to their complex response to inhomogeneous noise and partial sky coverage, which are often difficult to model analytically. A traditional alternative is to use one-point cumulants of various orders, which collapse the information present in a multispectrum to one number. The disadvantage of such a radical compression of the da","authors_text":"Alan Heavens, Asantha Cooray, Dipak Munshi, Joseph Smidt, Paolo Serra, Peter Coles","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-19T21:30:40Z","title":"New Optimised Estimators for the Primordial Trispectrum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.3693","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":"sha256:90e7a0c60b5265c5aff0a017b0475af47ba8b2557761dfbd2179bd4982ad3351","target":"record","created_at":"2026-05-18T04:17:03Z","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":"33cd612a6d1592261bc1a1a8dda78cee4fccb908c10bb226dc8c2f30e57a9216","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-19T21:30:40Z","title_canon_sha256":"9b2fe5c62dc76292cc9c1058a00dc1f2142682a885dc12acf31e1e750e2fa6cb"},"schema_version":"1.0","source":{"id":"0910.3693","kind":"arxiv","version":1}},"canonical_sha256":"3185e8ae1820211323053af729e773937d4231c8758b7308fbb58b0df1ebcea2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3185e8ae1820211323053af729e773937d4231c8758b7308fbb58b0df1ebcea2","first_computed_at":"2026-05-18T04:17:03.462553Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:17:03.462553Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3uYUTk4wIWJKAZPxFDNTr1u3Yb0A+ckbY6OJmhfKhB1SR8zKTqwbnfMER5SvmjBLoShMx2pa262+EXOmFE1yCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:17:03.463301Z","signed_message":"canonical_sha256_bytes"},"source_id":"0910.3693","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:90e7a0c60b5265c5aff0a017b0475af47ba8b2557761dfbd2179bd4982ad3351","sha256:a2e0c4f6cba9723d1d793eb3ed2760ef2970c4ceefe513a2064e47a5576963e5"],"state_sha256":"59032c45e9586671ed7789e6a8b2f89111cc45362785d92acb199a6c8868e74d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kQh/piEeNV1IcrG9PEY55aXWdIr0RlUt+Z5/YBP6QWbcjNT1pe8rQszHJgI7TXzc6Q88PPe+bwQjl0+wJwehCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T01:19:52.865790Z","bundle_sha256":"e88f0628dbab934ec314ca1b0cacc9a0bca11c287b98039a465601010fb2e4d1"}}