{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:W6IS4OH7DOWFHGFXVV3WOBIYNW","short_pith_number":"pith:W6IS4OH7","canonical_record":{"source":{"id":"1606.07068","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-06-22T20:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"76da26a29d17cdcec06a8aac28819e5df87df2f07799d2d61411cc47032ddafe","abstract_canon_sha256":"5f80961928c193b9c91032b7f419b41e30185073b408c6fc8ff6d9ac99326e13"},"schema_version":"1.0"},"canonical_sha256":"b7912e38ff1bac5398b7ad776705186d8475d49b901724481bedae69d4e65ba0","source":{"kind":"arxiv","id":"1606.07068","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.07068","created_at":"2026-05-18T01:07:20Z"},{"alias_kind":"arxiv_version","alias_value":"1606.07068v1","created_at":"2026-05-18T01:07:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.07068","created_at":"2026-05-18T01:07:20Z"},{"alias_kind":"pith_short_12","alias_value":"W6IS4OH7DOWF","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"W6IS4OH7DOWFHGFX","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"W6IS4OH7","created_at":"2026-05-18T12:30:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:W6IS4OH7DOWFHGFXVV3WOBIYNW","target":"record","payload":{"canonical_record":{"source":{"id":"1606.07068","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-06-22T20:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"76da26a29d17cdcec06a8aac28819e5df87df2f07799d2d61411cc47032ddafe","abstract_canon_sha256":"5f80961928c193b9c91032b7f419b41e30185073b408c6fc8ff6d9ac99326e13"},"schema_version":"1.0"},"canonical_sha256":"b7912e38ff1bac5398b7ad776705186d8475d49b901724481bedae69d4e65ba0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:20.397735Z","signature_b64":"ojbWgTPKvc6BSmQBzSWRrE26vvQk/pPUk6h2mzQDVn8bSXePs88i8Qd4MEUFm3jstHdCRiP6WxXKU0rWO+mIBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b7912e38ff1bac5398b7ad776705186d8475d49b901724481bedae69d4e65ba0","last_reissued_at":"2026-05-18T01:07:20.397283Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:20.397283Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1606.07068","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":"2026-05-18T01:07:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m546MANc0HxAHoPlbophFBEOtXiT1uXqVQ6gOCJrGbB54siU4QTPwb/6U9ZrSMIOEZikF4H7dqT0o88OKnr3Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T12:41:57.651231Z"},"content_sha256":"10354c1cf7d81d13edaa63a69edfc013355e9445e10ee1487604c130fcc91041","schema_version":"1.0","event_id":"sha256:10354c1cf7d81d13edaa63a69edfc013355e9445e10ee1487604c130fcc91041"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:W6IS4OH7DOWFHGFXVV3WOBIYNW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Debris Disks in the Scorpius-Centaurus OB Association Resolved by ALMA","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"A. Meredith Hughes, Antonio Hales, Jesse Lieman-Sifry, John M. Carpenter, Kevin M. Flaherty, Uma Gorti","submitted_at":"2016-06-22T20:00:02Z","abstract_excerpt":"We present a CO(2-1) and 1240 um continuum survey of 23 debris disks with spectral types B9-G1, observed at an angular resolution of 0.5-1 arcsec with the Atacama Large Millimeter/Submillimeter Array (ALMA). The sample was selected for large infrared excess and age ~10 Myr, to characterize the prevalence of molecular gas emission in young debris disks. We identify three CO-rich debris disks, plus two additional tentative (3-sigma) CO detections. Twenty disks were detected in the continuum at the >3-sigma level. For the 12 disks in the sample that are spatially resolved by our observations, we "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.07068","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":"2026-05-18T01:07:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Lj+Lf+ZSpTwNq5KeiB2H0Y7arhpM7Xbfmx1F0I4GSAvvo9T+mEisdbqoldY02NISWuF5TeW6572CKIsD47fdCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T12:41:57.652027Z"},"content_sha256":"16d7d3d96bf7e46c3b7f0535a107a86652bb1ae79e55decfb39b1678d29e5fb3","schema_version":"1.0","event_id":"sha256:16d7d3d96bf7e46c3b7f0535a107a86652bb1ae79e55decfb39b1678d29e5fb3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W6IS4OH7DOWFHGFXVV3WOBIYNW/bundle.json","state_url":"https://pith.science/pith/W6IS4OH7DOWFHGFXVV3WOBIYNW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W6IS4OH7DOWFHGFXVV3WOBIYNW/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":"2026-06-10T12:41:57Z","links":{"resolver":"https://pith.science/pith/W6IS4OH7DOWFHGFXVV3WOBIYNW","bundle":"https://pith.science/pith/W6IS4OH7DOWFHGFXVV3WOBIYNW/bundle.json","state":"https://pith.science/pith/W6IS4OH7DOWFHGFXVV3WOBIYNW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W6IS4OH7DOWFHGFXVV3WOBIYNW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:W6IS4OH7DOWFHGFXVV3WOBIYNW","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":"5f80961928c193b9c91032b7f419b41e30185073b408c6fc8ff6d9ac99326e13","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-06-22T20:00:02Z","title_canon_sha256":"76da26a29d17cdcec06a8aac28819e5df87df2f07799d2d61411cc47032ddafe"},"schema_version":"1.0","source":{"id":"1606.07068","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.07068","created_at":"2026-05-18T01:07:20Z"},{"alias_kind":"arxiv_version","alias_value":"1606.07068v1","created_at":"2026-05-18T01:07:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.07068","created_at":"2026-05-18T01:07:20Z"},{"alias_kind":"pith_short_12","alias_value":"W6IS4OH7DOWF","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"W6IS4OH7DOWFHGFX","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"W6IS4OH7","created_at":"2026-05-18T12:30:48Z"}],"graph_snapshots":[{"event_id":"sha256:16d7d3d96bf7e46c3b7f0535a107a86652bb1ae79e55decfb39b1678d29e5fb3","target":"graph","created_at":"2026-05-18T01:07:20Z","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":"We present a CO(2-1) and 1240 um continuum survey of 23 debris disks with spectral types B9-G1, observed at an angular resolution of 0.5-1 arcsec with the Atacama Large Millimeter/Submillimeter Array (ALMA). The sample was selected for large infrared excess and age ~10 Myr, to characterize the prevalence of molecular gas emission in young debris disks. We identify three CO-rich debris disks, plus two additional tentative (3-sigma) CO detections. Twenty disks were detected in the continuum at the >3-sigma level. For the 12 disks in the sample that are spatially resolved by our observations, we ","authors_text":"A. Meredith Hughes, Antonio Hales, Jesse Lieman-Sifry, John M. Carpenter, Kevin M. Flaherty, Uma Gorti","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-06-22T20:00:02Z","title":"Debris Disks in the Scorpius-Centaurus OB Association Resolved by ALMA"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.07068","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":"sha256:10354c1cf7d81d13edaa63a69edfc013355e9445e10ee1487604c130fcc91041","target":"record","created_at":"2026-05-18T01:07:20Z","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":"5f80961928c193b9c91032b7f419b41e30185073b408c6fc8ff6d9ac99326e13","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-06-22T20:00:02Z","title_canon_sha256":"76da26a29d17cdcec06a8aac28819e5df87df2f07799d2d61411cc47032ddafe"},"schema_version":"1.0","source":{"id":"1606.07068","kind":"arxiv","version":1}},"canonical_sha256":"b7912e38ff1bac5398b7ad776705186d8475d49b901724481bedae69d4e65ba0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b7912e38ff1bac5398b7ad776705186d8475d49b901724481bedae69d4e65ba0","first_computed_at":"2026-05-18T01:07:20.397283Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:20.397283Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ojbWgTPKvc6BSmQBzSWRrE26vvQk/pPUk6h2mzQDVn8bSXePs88i8Qd4MEUFm3jstHdCRiP6WxXKU0rWO+mIBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:20.397735Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.07068","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:10354c1cf7d81d13edaa63a69edfc013355e9445e10ee1487604c130fcc91041","sha256:16d7d3d96bf7e46c3b7f0535a107a86652bb1ae79e55decfb39b1678d29e5fb3"],"state_sha256":"bc6ca99b7155de8f7085dd7d4bd6ecb8d325e61a297ba97338b5ce47b637f7f4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+FROhhUATRo/vl1Rwua113f3emU8KiWqkfx1UKzeJb2mghuOVF8OrwSgutuqTQ4NgO7QAQlGfNCTwmhrDyeKBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T12:41:57.656340Z","bundle_sha256":"06f8d4fb6ceb1c8477523252cf9be7d542a84a8e2dfe0f2e74e9a438947d8c5e"}}