{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:IFEBFFRHG52OACWN362PAADEHD","short_pith_number":"pith:IFEBFFRH","canonical_record":{"source":{"id":"1905.09204","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-22T15:52:19Z","cross_cats_sorted":["astro-ph.EP","astro-ph.GA"],"title_canon_sha256":"93638c546becddab0f84878592645f6fe52a3f261fec44b247c83ababfefd62d","abstract_canon_sha256":"65c490473b5ef521212e217add0851b67b85d424b7548bef9311ac138a043965"},"schema_version":"1.0"},"canonical_sha256":"41481296273774e00acddfb4f0006438dddcbba786fa234d75f5b2e1d7eddd91","source":{"kind":"arxiv","id":"1905.09204","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.09204","created_at":"2026-05-17T23:43:34Z"},{"alias_kind":"arxiv_version","alias_value":"1905.09204v1","created_at":"2026-05-17T23:43:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.09204","created_at":"2026-05-17T23:43:34Z"},{"alias_kind":"pith_short_12","alias_value":"IFEBFFRHG52O","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"IFEBFFRHG52OACWN","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"IFEBFFRH","created_at":"2026-05-18T12:33:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:IFEBFFRHG52OACWN362PAADEHD","target":"record","payload":{"canonical_record":{"source":{"id":"1905.09204","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-22T15:52:19Z","cross_cats_sorted":["astro-ph.EP","astro-ph.GA"],"title_canon_sha256":"93638c546becddab0f84878592645f6fe52a3f261fec44b247c83ababfefd62d","abstract_canon_sha256":"65c490473b5ef521212e217add0851b67b85d424b7548bef9311ac138a043965"},"schema_version":"1.0"},"canonical_sha256":"41481296273774e00acddfb4f0006438dddcbba786fa234d75f5b2e1d7eddd91","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:34.178756Z","signature_b64":"vORtruWEEa1cpzy+Ntas0jvEQhMwca56EURcQWJS0GE9xWNU1Khge9csONEzfrgfPmhoIUHby7KDOZjS9ooSCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"41481296273774e00acddfb4f0006438dddcbba786fa234d75f5b2e1d7eddd91","last_reissued_at":"2026-05-17T23:43:34.178269Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:34.178269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.09204","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":"2026-05-17T23:43:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CqR37Mh96lxwcppA0DZXdNQGA+BOHTw++YSckIlWQnRXU5M+cKPfNZ1cYQ2qIqhwZvbtWAkVcVtp8Rp+K/vRBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T20:05:38.021329Z"},"content_sha256":"9706ca5fdd2b131efdcc72adb3f8e5993699af17d74d4cb437f1981ed9ced214","schema_version":"1.0","event_id":"sha256:9706ca5fdd2b131efdcc72adb3f8e5993699af17d74d4cb437f1981ed9ced214"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:IFEBFFRHG52OACWN362PAADEHD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High gas/dust size ratio indicating efficient radial drift in the mm-faint CX Tau disk","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP","astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"C. F. Manara, C. J. Clarke, E. F. van Dishoeck, G. Rosotti, L. Maud, M. Tazzari, N. Van der Marel, P. Cazzoletti, P. Pinilla, S. Facchini","submitted_at":"2019-05-22T15:52:19Z","abstract_excerpt":"The large majority of protoplanetary disks have very compact ($\\lesssim15\\,$AU) continuum emission at mm wavelengths. However, high angular resolution observations that resolve these small disks are still lacking, due to their intrinsically fainter emission compared with large bright disks. In this letter, we present $1.3\\,$mm ALMA data of the faint ($\\sim10\\,$mJy) disk orbiting the TTauri star CX Tau at a resolution of $\\sim40\\,$mas, $\\sim5\\,$AU in diameter. The mm-dust disk is compact, with a 68$\\%$ enclosing flux radius of 14$\\,$AU, and the intensity profile exhibits a sharp drop between 10"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.09204","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":"2026-05-17T23:43:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WcSo9oT3QPL6a0YseuJQ0uPb66DiTBc8dBgCwV8X/MDs/gbJ6ujMzhWqr1OcFnEacwNVCLk19vjzxe/8jQJ1CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T20:05:38.021690Z"},"content_sha256":"923a08d0f192cf0fb2eee8ef73763d484149ed5e78d69abc1333933ddb50370b","schema_version":"1.0","event_id":"sha256:923a08d0f192cf0fb2eee8ef73763d484149ed5e78d69abc1333933ddb50370b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IFEBFFRHG52OACWN362PAADEHD/bundle.json","state_url":"https://pith.science/pith/IFEBFFRHG52OACWN362PAADEHD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IFEBFFRHG52OACWN362PAADEHD/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":"2026-05-28T20:05:38Z","links":{"resolver":"https://pith.science/pith/IFEBFFRHG52OACWN362PAADEHD","bundle":"https://pith.science/pith/IFEBFFRHG52OACWN362PAADEHD/bundle.json","state":"https://pith.science/pith/IFEBFFRHG52OACWN362PAADEHD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IFEBFFRHG52OACWN362PAADEHD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:IFEBFFRHG52OACWN362PAADEHD","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":"65c490473b5ef521212e217add0851b67b85d424b7548bef9311ac138a043965","cross_cats_sorted":["astro-ph.EP","astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-22T15:52:19Z","title_canon_sha256":"93638c546becddab0f84878592645f6fe52a3f261fec44b247c83ababfefd62d"},"schema_version":"1.0","source":{"id":"1905.09204","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.09204","created_at":"2026-05-17T23:43:34Z"},{"alias_kind":"arxiv_version","alias_value":"1905.09204v1","created_at":"2026-05-17T23:43:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.09204","created_at":"2026-05-17T23:43:34Z"},{"alias_kind":"pith_short_12","alias_value":"IFEBFFRHG52O","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"IFEBFFRHG52OACWN","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"IFEBFFRH","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:923a08d0f192cf0fb2eee8ef73763d484149ed5e78d69abc1333933ddb50370b","target":"graph","created_at":"2026-05-17T23:43:34Z","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":"The large majority of protoplanetary disks have very compact ($\\lesssim15\\,$AU) continuum emission at mm wavelengths. However, high angular resolution observations that resolve these small disks are still lacking, due to their intrinsically fainter emission compared with large bright disks. In this letter, we present $1.3\\,$mm ALMA data of the faint ($\\sim10\\,$mJy) disk orbiting the TTauri star CX Tau at a resolution of $\\sim40\\,$mas, $\\sim5\\,$AU in diameter. The mm-dust disk is compact, with a 68$\\%$ enclosing flux radius of 14$\\,$AU, and the intensity profile exhibits a sharp drop between 10","authors_text":"C. F. Manara, C. J. Clarke, E. F. van Dishoeck, G. Rosotti, L. Maud, M. Tazzari, N. Van der Marel, P. Cazzoletti, P. Pinilla, S. Facchini","cross_cats":["astro-ph.EP","astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-22T15:52:19Z","title":"High gas/dust size ratio indicating efficient radial drift in the mm-faint CX Tau disk"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.09204","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":"sha256:9706ca5fdd2b131efdcc72adb3f8e5993699af17d74d4cb437f1981ed9ced214","target":"record","created_at":"2026-05-17T23:43:34Z","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":"65c490473b5ef521212e217add0851b67b85d424b7548bef9311ac138a043965","cross_cats_sorted":["astro-ph.EP","astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-05-22T15:52:19Z","title_canon_sha256":"93638c546becddab0f84878592645f6fe52a3f261fec44b247c83ababfefd62d"},"schema_version":"1.0","source":{"id":"1905.09204","kind":"arxiv","version":1}},"canonical_sha256":"41481296273774e00acddfb4f0006438dddcbba786fa234d75f5b2e1d7eddd91","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"41481296273774e00acddfb4f0006438dddcbba786fa234d75f5b2e1d7eddd91","first_computed_at":"2026-05-17T23:43:34.178269Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:43:34.178269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vORtruWEEa1cpzy+Ntas0jvEQhMwca56EURcQWJS0GE9xWNU1Khge9csONEzfrgfPmhoIUHby7KDOZjS9ooSCQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:43:34.178756Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.09204","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9706ca5fdd2b131efdcc72adb3f8e5993699af17d74d4cb437f1981ed9ced214","sha256:923a08d0f192cf0fb2eee8ef73763d484149ed5e78d69abc1333933ddb50370b"],"state_sha256":"85fd3d5007db4804d9af9320b7ff29b1c197dc21bca507e6e869b45c3f7a0282"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v/Lq7mpF4DLm3h3rIwNtARneXFcVjs/dcr9gwE1lRwTwt6KDDJKgwW96VXFGAjX2077Zrw6pa2fX9jMvtIGhDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T20:05:38.023959Z","bundle_sha256":"8884b7a2e791d6f33659cd36b1ec77130422aa6b82b0b72134c0209e33a877d4"}}