{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:J74IQCGLM25FN6BZXP4JU6KB5E","short_pith_number":"pith:J74IQCGL","canonical_record":{"source":{"id":"1906.03269","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-06-07T18:00:01Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"e9c98a377e978d45614aabf3d4280708b93cf72a793a5a8d641d9d9da5314dd7","abstract_canon_sha256":"df87cb639f3dbee8abeeb38e2be3a6f90ad8d40e8cc2dd630141a2e22ac90616"},"schema_version":"1.0"},"canonical_sha256":"4ff88808cb66ba56f839bbf89a7941e925ab9e5d83fedc33b792e393fb260805","source":{"kind":"arxiv","id":"1906.03269","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.03269","created_at":"2026-07-05T00:06:45Z"},{"alias_kind":"arxiv_version","alias_value":"1906.03269v2","created_at":"2026-07-05T00:06:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.03269","created_at":"2026-07-05T00:06:45Z"},{"alias_kind":"pith_short_12","alias_value":"J74IQCGLM25F","created_at":"2026-07-05T00:06:45Z"},{"alias_kind":"pith_short_16","alias_value":"J74IQCGLM25FN6BZ","created_at":"2026-07-05T00:06:45Z"},{"alias_kind":"pith_short_8","alias_value":"J74IQCGL","created_at":"2026-07-05T00:06:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:J74IQCGLM25FN6BZXP4JU6KB5E","target":"record","payload":{"canonical_record":{"source":{"id":"1906.03269","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-06-07T18:00:01Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"e9c98a377e978d45614aabf3d4280708b93cf72a793a5a8d641d9d9da5314dd7","abstract_canon_sha256":"df87cb639f3dbee8abeeb38e2be3a6f90ad8d40e8cc2dd630141a2e22ac90616"},"schema_version":"1.0"},"canonical_sha256":"4ff88808cb66ba56f839bbf89a7941e925ab9e5d83fedc33b792e393fb260805","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:06:45.904264Z","signature_b64":"bGQ1IBbjYiABbmgn2U8jHtWDbZaU+sfjAdKmFw7cEhdI8kwrDYvMte4JvSQxABX4J07jVkQZ8BiPIHe2PmVBAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4ff88808cb66ba56f839bbf89a7941e925ab9e5d83fedc33b792e393fb260805","last_reissued_at":"2026-07-05T00:06:45.903823Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:06:45.903823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1906.03269","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":"2026-07-05T00:06:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tr15LpFG9cmNTEoQo2ER9GQSqlcUT3RiO8CEAMC0T0zSdVFtRYpx93LnLKIKzfH8VC+9MMg1F+tVWstICysmDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T16:18:22.308976Z"},"content_sha256":"1e66c89570fe2ee3dffa13a36d347e050df924bbacc73cfc4329e06bf08d3bc7","schema_version":"1.0","event_id":"sha256:1e66c89570fe2ee3dffa13a36d347e050df924bbacc73cfc4329e06bf08d3bc7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:J74IQCGLM25FN6BZXP4JU6KB5E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Degree of Alignment Between Circumbinary Disks and Their Binary Hosts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Bruce Macintosh, David J. Wilner, Eric L. N. Jensen, Eugene Chiang, Guillermo Torres, Ian Czekala, Keivan G. Stassun, Sean M. Andrews","submitted_at":"2019-06-07T18:00:01Z","abstract_excerpt":"All four circumbinary (CB) protoplanetary disks orbiting short-period ($P < 20$ day) double-lined spectroscopic binaries (SB2s)---a group that includes UZ Tau E, for which we present new ALMA data---exhibit sky-plane inclinations $i_{\\rm disk}$ which match, to within a few degrees, the sky-plane inclinations $i_\\star$ of their stellar hosts. Although for these systems the true mutual inclinations $\\theta$ between disk and binary cannot be directly measured because relative nodal angles are unknown, the near-coincidence of $i_{\\rm disk}$ and $i_\\star$ suggests that $\\theta$ is small for these m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.03269","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/1906.03269/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":"2026-07-05T00:06:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gUDflI4aJiozF+jaUzlLBU4H4sEVaQA/Glk85OG2PbyEBLI4fLuS6rsFJDIiTdKm+TEjlnWfcooW3mjHqQloCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T16:18:22.309914Z"},"content_sha256":"8b7b164bc5000b00dd204bbaf7165fddb47bab68917d36a4f7c1f91d4008de54","schema_version":"1.0","event_id":"sha256:8b7b164bc5000b00dd204bbaf7165fddb47bab68917d36a4f7c1f91d4008de54"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J74IQCGLM25FN6BZXP4JU6KB5E/bundle.json","state_url":"https://pith.science/pith/J74IQCGLM25FN6BZXP4JU6KB5E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J74IQCGLM25FN6BZXP4JU6KB5E/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":"2026-08-10T16:18:22Z","links":{"resolver":"https://pith.science/pith/J74IQCGLM25FN6BZXP4JU6KB5E","bundle":"https://pith.science/pith/J74IQCGLM25FN6BZXP4JU6KB5E/bundle.json","state":"https://pith.science/pith/J74IQCGLM25FN6BZXP4JU6KB5E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J74IQCGLM25FN6BZXP4JU6KB5E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:J74IQCGLM25FN6BZXP4JU6KB5E","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":"df87cb639f3dbee8abeeb38e2be3a6f90ad8d40e8cc2dd630141a2e22ac90616","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-06-07T18:00:01Z","title_canon_sha256":"e9c98a377e978d45614aabf3d4280708b93cf72a793a5a8d641d9d9da5314dd7"},"schema_version":"1.0","source":{"id":"1906.03269","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.03269","created_at":"2026-07-05T00:06:45Z"},{"alias_kind":"arxiv_version","alias_value":"1906.03269v2","created_at":"2026-07-05T00:06:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.03269","created_at":"2026-07-05T00:06:45Z"},{"alias_kind":"pith_short_12","alias_value":"J74IQCGLM25F","created_at":"2026-07-05T00:06:45Z"},{"alias_kind":"pith_short_16","alias_value":"J74IQCGLM25FN6BZ","created_at":"2026-07-05T00:06:45Z"},{"alias_kind":"pith_short_8","alias_value":"J74IQCGL","created_at":"2026-07-05T00:06:45Z"}],"graph_snapshots":[{"event_id":"sha256:8b7b164bc5000b00dd204bbaf7165fddb47bab68917d36a4f7c1f91d4008de54","target":"graph","created_at":"2026-07-05T00:06:45Z","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/1906.03269/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"All four circumbinary (CB) protoplanetary disks orbiting short-period ($P < 20$ day) double-lined spectroscopic binaries (SB2s)---a group that includes UZ Tau E, for which we present new ALMA data---exhibit sky-plane inclinations $i_{\\rm disk}$ which match, to within a few degrees, the sky-plane inclinations $i_\\star$ of their stellar hosts. Although for these systems the true mutual inclinations $\\theta$ between disk and binary cannot be directly measured because relative nodal angles are unknown, the near-coincidence of $i_{\\rm disk}$ and $i_\\star$ suggests that $\\theta$ is small for these m","authors_text":"Bruce Macintosh, David J. Wilner, Eric L. N. Jensen, Eugene Chiang, Guillermo Torres, Ian Czekala, Keivan G. Stassun, Sean M. Andrews","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-06-07T18:00:01Z","title":"The Degree of Alignment Between Circumbinary Disks and Their Binary Hosts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.03269","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":"sha256:1e66c89570fe2ee3dffa13a36d347e050df924bbacc73cfc4329e06bf08d3bc7","target":"record","created_at":"2026-07-05T00:06:45Z","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":"df87cb639f3dbee8abeeb38e2be3a6f90ad8d40e8cc2dd630141a2e22ac90616","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-06-07T18:00:01Z","title_canon_sha256":"e9c98a377e978d45614aabf3d4280708b93cf72a793a5a8d641d9d9da5314dd7"},"schema_version":"1.0","source":{"id":"1906.03269","kind":"arxiv","version":2}},"canonical_sha256":"4ff88808cb66ba56f839bbf89a7941e925ab9e5d83fedc33b792e393fb260805","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4ff88808cb66ba56f839bbf89a7941e925ab9e5d83fedc33b792e393fb260805","first_computed_at":"2026-07-05T00:06:45.903823Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:06:45.903823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bGQ1IBbjYiABbmgn2U8jHtWDbZaU+sfjAdKmFw7cEhdI8kwrDYvMte4JvSQxABX4J07jVkQZ8BiPIHe2PmVBAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:06:45.904264Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.03269","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1e66c89570fe2ee3dffa13a36d347e050df924bbacc73cfc4329e06bf08d3bc7","sha256:8b7b164bc5000b00dd204bbaf7165fddb47bab68917d36a4f7c1f91d4008de54"],"state_sha256":"cd38aa4bbeed08706e8e852683d6d711947468428fed0b6731633572290f1236"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AE+L/YJxVcZAKz/Wqet3VemPjCNBGWygYEOnFPdtlbDqSRAlnVUFWLjPDj8tl6TLN6Lv6OYub4bFYujYJKLODg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T16:18:22.316971Z","bundle_sha256":"8824b8654d5bbc6becec822a6d70904d3ef029e560e717c002bf90f12737ee64"}}