{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:3T5HQRTFKX7T7DTKCKLXATNSGZ","short_pith_number":"pith:3T5HQRTF","canonical_record":{"source":{"id":"1703.08546","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-03-24T18:00:00Z","cross_cats_sorted":["astro-ph.GA","astro-ph.SR"],"title_canon_sha256":"e65eef9f07c5823fc2999322af5238668176bb68cc57ba92e6685e1845cf369a","abstract_canon_sha256":"4994a8802277e60c41d048667f9f34030adb62c0e04d74f73c1347ba887a82f2"},"schema_version":"1.0"},"canonical_sha256":"dcfa78466555ff3f8e6a1297704db2364874872121956fd62c20352abb1d2d59","source":{"kind":"arxiv","id":"1703.08546","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.08546","created_at":"2026-05-18T00:43:51Z"},{"alias_kind":"arxiv_version","alias_value":"1703.08546v4","created_at":"2026-05-18T00:43:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.08546","created_at":"2026-05-18T00:43:51Z"},{"alias_kind":"pith_short_12","alias_value":"3T5HQRTFKX7T","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3T5HQRTFKX7T7DTK","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3T5HQRTF","created_at":"2026-05-18T12:30:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:3T5HQRTFKX7T7DTKCKLXATNSGZ","target":"record","payload":{"canonical_record":{"source":{"id":"1703.08546","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-03-24T18:00:00Z","cross_cats_sorted":["astro-ph.GA","astro-ph.SR"],"title_canon_sha256":"e65eef9f07c5823fc2999322af5238668176bb68cc57ba92e6685e1845cf369a","abstract_canon_sha256":"4994a8802277e60c41d048667f9f34030adb62c0e04d74f73c1347ba887a82f2"},"schema_version":"1.0"},"canonical_sha256":"dcfa78466555ff3f8e6a1297704db2364874872121956fd62c20352abb1d2d59","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:43:51.234466Z","signature_b64":"sF0jQOI6O+GNT32Xu2Z2uyZjMqyY+l/qh0tMY/mP4rKUwEe8ud3H2QT/pPb+e+52recQEQ+kWHIVZmsdeaE5DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dcfa78466555ff3f8e6a1297704db2364874872121956fd62c20352abb1d2d59","last_reissued_at":"2026-05-18T00:43:51.233989Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:43:51.233989Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1703.08546","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:43:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yEneuTh7tHgXYi6FpxSkgvQ/Hs9FdnCusvTNpUlpcpdSW3K8QvE9Ob8la1AuQU5v0Hvhx9rU+QZnp0mKXL6yAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T04:10:20.683309Z"},"content_sha256":"1f7f336843a604ec6cf86cfeebe8c93e3dafaf5923bcfecd68efa20d19b1bee7","schema_version":"1.0","event_id":"sha256:1f7f336843a604ec6cf86cfeebe8c93e3dafaf5923bcfecd68efa20d19b1bee7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:3T5HQRTFKX7T7DTKCKLXATNSGZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An ALMA Survey of Protoplanetary Disks in the $\\sigma$ Orionis Cluster","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Anna Miotello, Carlo F. Manara, Ewine F. van Dishoeck, Jonathan P. Williams, Leonardo Testi, Megan Ansdell, Nienke van der Marel, Stefano Facchini","submitted_at":"2017-03-24T18:00:00Z","abstract_excerpt":"The $\\sigma$ Orionis cluster is important for studying protoplanetary disk evolution, as its intermediate age ($\\sim$3-5 Myr) is comparable to the median disk lifetime. We use ALMA to conduct a high-sensitivity survey of dust and gas in 92 protoplanetary disks around $\\sigma$ Orionis members with $M_{\\ast}\\gtrsim0.1 M_{\\odot}$. Our observations cover the 1.33 mm continuum and several CO $J=2-1$ lines: out of 92 sources, we detect 37 in the mm continuum and six in $^{12}$CO, three in $^{13}$CO, and none in C$^{18}$O. Using the continuum emission to estimate dust mass, we find only 11 disks with"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.08546","kind":"arxiv","version":4},"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":"2026-05-18T00:43:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MjwxLp3Xb022fzl6jfYJVzPch6EfysEFxlBfN5+8CGQU1srrns2eJgp1u85O2vOl6hyyg3q28qc4J+WaBqOoDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T04:10:20.683733Z"},"content_sha256":"c01dae3faca0b7ae24542da2e187f0984e74d1ba58380956f2616db4b06fad0b","schema_version":"1.0","event_id":"sha256:c01dae3faca0b7ae24542da2e187f0984e74d1ba58380956f2616db4b06fad0b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3T5HQRTFKX7T7DTKCKLXATNSGZ/bundle.json","state_url":"https://pith.science/pith/3T5HQRTFKX7T7DTKCKLXATNSGZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3T5HQRTFKX7T7DTKCKLXATNSGZ/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":"2026-05-30T04:10:20Z","links":{"resolver":"https://pith.science/pith/3T5HQRTFKX7T7DTKCKLXATNSGZ","bundle":"https://pith.science/pith/3T5HQRTFKX7T7DTKCKLXATNSGZ/bundle.json","state":"https://pith.science/pith/3T5HQRTFKX7T7DTKCKLXATNSGZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3T5HQRTFKX7T7DTKCKLXATNSGZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:3T5HQRTFKX7T7DTKCKLXATNSGZ","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":"4994a8802277e60c41d048667f9f34030adb62c0e04d74f73c1347ba887a82f2","cross_cats_sorted":["astro-ph.GA","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-03-24T18:00:00Z","title_canon_sha256":"e65eef9f07c5823fc2999322af5238668176bb68cc57ba92e6685e1845cf369a"},"schema_version":"1.0","source":{"id":"1703.08546","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.08546","created_at":"2026-05-18T00:43:51Z"},{"alias_kind":"arxiv_version","alias_value":"1703.08546v4","created_at":"2026-05-18T00:43:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.08546","created_at":"2026-05-18T00:43:51Z"},{"alias_kind":"pith_short_12","alias_value":"3T5HQRTFKX7T","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3T5HQRTFKX7T7DTK","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3T5HQRTF","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:c01dae3faca0b7ae24542da2e187f0984e74d1ba58380956f2616db4b06fad0b","target":"graph","created_at":"2026-05-18T00:43:51Z","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 $\\sigma$ Orionis cluster is important for studying protoplanetary disk evolution, as its intermediate age ($\\sim$3-5 Myr) is comparable to the median disk lifetime. We use ALMA to conduct a high-sensitivity survey of dust and gas in 92 protoplanetary disks around $\\sigma$ Orionis members with $M_{\\ast}\\gtrsim0.1 M_{\\odot}$. Our observations cover the 1.33 mm continuum and several CO $J=2-1$ lines: out of 92 sources, we detect 37 in the mm continuum and six in $^{12}$CO, three in $^{13}$CO, and none in C$^{18}$O. Using the continuum emission to estimate dust mass, we find only 11 disks with","authors_text":"Anna Miotello, Carlo F. Manara, Ewine F. van Dishoeck, Jonathan P. Williams, Leonardo Testi, Megan Ansdell, Nienke van der Marel, Stefano Facchini","cross_cats":["astro-ph.GA","astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-03-24T18:00:00Z","title":"An ALMA Survey of Protoplanetary Disks in the $\\sigma$ Orionis Cluster"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.08546","kind":"arxiv","version":4},"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":"sha256:1f7f336843a604ec6cf86cfeebe8c93e3dafaf5923bcfecd68efa20d19b1bee7","target":"record","created_at":"2026-05-18T00:43:51Z","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":"4994a8802277e60c41d048667f9f34030adb62c0e04d74f73c1347ba887a82f2","cross_cats_sorted":["astro-ph.GA","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-03-24T18:00:00Z","title_canon_sha256":"e65eef9f07c5823fc2999322af5238668176bb68cc57ba92e6685e1845cf369a"},"schema_version":"1.0","source":{"id":"1703.08546","kind":"arxiv","version":4}},"canonical_sha256":"dcfa78466555ff3f8e6a1297704db2364874872121956fd62c20352abb1d2d59","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dcfa78466555ff3f8e6a1297704db2364874872121956fd62c20352abb1d2d59","first_computed_at":"2026-05-18T00:43:51.233989Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:43:51.233989Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sF0jQOI6O+GNT32Xu2Z2uyZjMqyY+l/qh0tMY/mP4rKUwEe8ud3H2QT/pPb+e+52recQEQ+kWHIVZmsdeaE5DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:43:51.234466Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.08546","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1f7f336843a604ec6cf86cfeebe8c93e3dafaf5923bcfecd68efa20d19b1bee7","sha256:c01dae3faca0b7ae24542da2e187f0984e74d1ba58380956f2616db4b06fad0b"],"state_sha256":"265965e16dab7ee5446c2d4f57ea858679204b87254ee697d432bbda24972f21"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hcnohv5452lCWr8rAg2+LaE6EsulEmMllgXSBatKkSE6w0D12OsU186tUSGJP0fsw3RDZi6DMZ1c81f2F2f3CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T04:10:20.686103Z","bundle_sha256":"93ff07a0d41033ded6c6ee7c135a37aee61b8c20a8f4daf7357c6a50464bf4f7"}}