{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:BLK7BIDQEOOGGI53JJGCTLOVJO","short_pith_number":"pith:BLK7BIDQ","canonical_record":{"source":{"id":"2010.12657","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-10-23T20:44:49Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"e47479db968cb5904c401facad3a26081539db74ad5507fd1ba802261edfc14b","abstract_canon_sha256":"366fb4518ef7ab74c29237e84c37b7f8526828c1c431a9e2d12ce473decc356a"},"schema_version":"1.0"},"canonical_sha256":"0ad5f0a070239c6323bb4a4c29add54ba6fcc35d989ec0613558acf241479f53","source":{"kind":"arxiv","id":"2010.12657","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.12657","created_at":"2026-07-05T01:48:57Z"},{"alias_kind":"arxiv_version","alias_value":"2010.12657v1","created_at":"2026-07-05T01:48:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.12657","created_at":"2026-07-05T01:48:57Z"},{"alias_kind":"pith_short_12","alias_value":"BLK7BIDQEOOG","created_at":"2026-07-05T01:48:57Z"},{"alias_kind":"pith_short_16","alias_value":"BLK7BIDQEOOGGI53","created_at":"2026-07-05T01:48:57Z"},{"alias_kind":"pith_short_8","alias_value":"BLK7BIDQ","created_at":"2026-07-05T01:48:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:BLK7BIDQEOOGGI53JJGCTLOVJO","target":"record","payload":{"canonical_record":{"source":{"id":"2010.12657","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-10-23T20:44:49Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"e47479db968cb5904c401facad3a26081539db74ad5507fd1ba802261edfc14b","abstract_canon_sha256":"366fb4518ef7ab74c29237e84c37b7f8526828c1c431a9e2d12ce473decc356a"},"schema_version":"1.0"},"canonical_sha256":"0ad5f0a070239c6323bb4a4c29add54ba6fcc35d989ec0613558acf241479f53","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:48:57.503455Z","signature_b64":"q9fIkwzRUzJTeK/r2bQAaVgVwJBIr9o9N10X4yvumG3QHGua1RebPkQLzoOoe1pCWJ7pxd6BUVPkqd25InZ2Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0ad5f0a070239c6323bb4a4c29add54ba6fcc35d989ec0613558acf241479f53","last_reissued_at":"2026-07-05T01:48:57.502971Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:48:57.502971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2010.12657","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":"2026-07-05T01:48:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FgMgtA7av6njb9KX7RNDie1fHaV3CJHRh9gZdGB3JCkcufQ+P1MM5yRt00f6yu2ex3MIE5RtgA8qaWGtOArIBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T11:53:24.045813Z"},"content_sha256":"245d5256d2ba13ff6f764e3c7ac67f10397a3bd096fa2a24d385f102d0affc1b","schema_version":"1.0","event_id":"sha256:245d5256d2ba13ff6f764e3c7ac67f10397a3bd096fa2a24d385f102d0affc1b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:BLK7BIDQEOOGGI53JJGCTLOVJO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ALMA Survey of Lupus Class III Stars: Early Planetesimal Belt Formation and Rapid Disk Dispersal","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"C. F. Manara, G. M. Kennedy, G. Rosotti, J. B. Lovell, J. P. Williams, L. Matr\\`a, L. Testi, M. Ansdell, M. C. Wyatt, M. Kama, M. Tazzari, S. Marino","submitted_at":"2020-10-23T20:44:49Z","abstract_excerpt":"Class III stars are those in star forming regions without large non-photospheric infrared emission, suggesting recent dispersal of their protoplanetary disks. We observed 30 class III stars in the 1-3 Myr Lupus region with ALMA at ${\\sim}856\\mu$m, resulting in 4 detections that we attribute to circumstellar dust. Inferred dust masses are $0.036{-}0.093M_\\oplus$, ${\\sim}1$ order of magnitude lower than any previous measurements; one disk is resolved with radius ${\\sim}80$ au. Two class II sources in the field of view were also detected, and 11 other sources, consistent with sub-mm galaxy number"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.12657","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2010.12657/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":"2026-07-05T01:48:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ej0/xUlurukUC+tN9/og8M5LqSv5+K1xKtC1gfqdbaRwbUmWZ1XbxYT+pMMy/PTj241aeZY5qiuxCTTsRfq3Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T11:53:24.046374Z"},"content_sha256":"09ca04f2add484ccba9db74032c5819299b39abe3f8078c0b0a2cd402b988f25","schema_version":"1.0","event_id":"sha256:09ca04f2add484ccba9db74032c5819299b39abe3f8078c0b0a2cd402b988f25"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BLK7BIDQEOOGGI53JJGCTLOVJO/bundle.json","state_url":"https://pith.science/pith/BLK7BIDQEOOGGI53JJGCTLOVJO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BLK7BIDQEOOGGI53JJGCTLOVJO/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":"2026-08-01T11:53:24Z","links":{"resolver":"https://pith.science/pith/BLK7BIDQEOOGGI53JJGCTLOVJO","bundle":"https://pith.science/pith/BLK7BIDQEOOGGI53JJGCTLOVJO/bundle.json","state":"https://pith.science/pith/BLK7BIDQEOOGGI53JJGCTLOVJO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BLK7BIDQEOOGGI53JJGCTLOVJO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:BLK7BIDQEOOGGI53JJGCTLOVJO","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":"366fb4518ef7ab74c29237e84c37b7f8526828c1c431a9e2d12ce473decc356a","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-10-23T20:44:49Z","title_canon_sha256":"e47479db968cb5904c401facad3a26081539db74ad5507fd1ba802261edfc14b"},"schema_version":"1.0","source":{"id":"2010.12657","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.12657","created_at":"2026-07-05T01:48:57Z"},{"alias_kind":"arxiv_version","alias_value":"2010.12657v1","created_at":"2026-07-05T01:48:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.12657","created_at":"2026-07-05T01:48:57Z"},{"alias_kind":"pith_short_12","alias_value":"BLK7BIDQEOOG","created_at":"2026-07-05T01:48:57Z"},{"alias_kind":"pith_short_16","alias_value":"BLK7BIDQEOOGGI53","created_at":"2026-07-05T01:48:57Z"},{"alias_kind":"pith_short_8","alias_value":"BLK7BIDQ","created_at":"2026-07-05T01:48:57Z"}],"graph_snapshots":[{"event_id":"sha256:09ca04f2add484ccba9db74032c5819299b39abe3f8078c0b0a2cd402b988f25","target":"graph","created_at":"2026-07-05T01:48:57Z","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/2010.12657/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Class III stars are those in star forming regions without large non-photospheric infrared emission, suggesting recent dispersal of their protoplanetary disks. We observed 30 class III stars in the 1-3 Myr Lupus region with ALMA at ${\\sim}856\\mu$m, resulting in 4 detections that we attribute to circumstellar dust. Inferred dust masses are $0.036{-}0.093M_\\oplus$, ${\\sim}1$ order of magnitude lower than any previous measurements; one disk is resolved with radius ${\\sim}80$ au. Two class II sources in the field of view were also detected, and 11 other sources, consistent with sub-mm galaxy number","authors_text":"C. F. Manara, G. M. Kennedy, G. Rosotti, J. B. Lovell, J. P. Williams, L. Matr\\`a, L. Testi, M. Ansdell, M. C. Wyatt, M. Kama, M. Tazzari, S. Marino","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-10-23T20:44:49Z","title":"ALMA Survey of Lupus Class III Stars: Early Planetesimal Belt Formation and Rapid Disk Dispersal"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.12657","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":"sha256:245d5256d2ba13ff6f764e3c7ac67f10397a3bd096fa2a24d385f102d0affc1b","target":"record","created_at":"2026-07-05T01:48:57Z","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":"366fb4518ef7ab74c29237e84c37b7f8526828c1c431a9e2d12ce473decc356a","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-10-23T20:44:49Z","title_canon_sha256":"e47479db968cb5904c401facad3a26081539db74ad5507fd1ba802261edfc14b"},"schema_version":"1.0","source":{"id":"2010.12657","kind":"arxiv","version":1}},"canonical_sha256":"0ad5f0a070239c6323bb4a4c29add54ba6fcc35d989ec0613558acf241479f53","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0ad5f0a070239c6323bb4a4c29add54ba6fcc35d989ec0613558acf241479f53","first_computed_at":"2026-07-05T01:48:57.502971Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:48:57.502971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q9fIkwzRUzJTeK/r2bQAaVgVwJBIr9o9N10X4yvumG3QHGua1RebPkQLzoOoe1pCWJ7pxd6BUVPkqd25InZ2Dw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:48:57.503455Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.12657","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:245d5256d2ba13ff6f764e3c7ac67f10397a3bd096fa2a24d385f102d0affc1b","sha256:09ca04f2add484ccba9db74032c5819299b39abe3f8078c0b0a2cd402b988f25"],"state_sha256":"6d29b8b1dc3fb86584bd762e33094dabb52d865881d6559f8e2ae88e260378bf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gjzG4CIcoRYbMiUiPyq7viJ37rtddaoekIZ9cav4OD59ved+rM/5trfJj0WqxU4oaPOtTZueixUoymVwYK0OCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-01T11:53:24.049644Z","bundle_sha256":"9b71f9e2f465b0eab933389ed6b69394dd8c19413d2902236a32c2f34a39b1c2"}}