{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:DKSQSWHTSJJH6WWT5NLHUHDURY","short_pith_number":"pith:DKSQSWHT","canonical_record":{"source":{"id":"1110.3865","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.EP","submitted_at":"2011-10-18T02:19:56Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"d78d5c4237b259aa086c3854f5fb0c9d89381244805030ef617de2b6b4fb5852","abstract_canon_sha256":"38fe88938f003e9953b3df6adb10aac6116f8b2b9d246345c4e1e92ddfa9500d"},"schema_version":"1.0"},"canonical_sha256":"1aa50958f392527f5ad3eb567a1c748e15ed288c6f8eb7e27a50130c5703d4de","source":{"kind":"arxiv","id":"1110.3865","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.3865","created_at":"2026-05-18T02:00:09Z"},{"alias_kind":"arxiv_version","alias_value":"1110.3865v1","created_at":"2026-05-18T02:00:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.3865","created_at":"2026-05-18T02:00:09Z"},{"alias_kind":"pith_short_12","alias_value":"DKSQSWHTSJJH","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"DKSQSWHTSJJH6WWT","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"DKSQSWHT","created_at":"2026-05-18T12:26:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:DKSQSWHTSJJH6WWT5NLHUHDURY","target":"record","payload":{"canonical_record":{"source":{"id":"1110.3865","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.EP","submitted_at":"2011-10-18T02:19:56Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"d78d5c4237b259aa086c3854f5fb0c9d89381244805030ef617de2b6b4fb5852","abstract_canon_sha256":"38fe88938f003e9953b3df6adb10aac6116f8b2b9d246345c4e1e92ddfa9500d"},"schema_version":"1.0"},"canonical_sha256":"1aa50958f392527f5ad3eb567a1c748e15ed288c6f8eb7e27a50130c5703d4de","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:09.637337Z","signature_b64":"F5wVvRmToDegU70Lie6BkWb2A2R9X4u8y+8AFK9KegQqR4u53STm3FM5kTawz4FgfiznSTQ62Buez7pm2QjRCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1aa50958f392527f5ad3eb567a1c748e15ed288c6f8eb7e27a50130c5703d4de","last_reissued_at":"2026-05-18T02:00:09.636539Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:09.636539Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1110.3865","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":"2026-05-18T02:00:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7HVU62MR5ZcD49VoXuSFCNb7mAZJX3qA+A38sZwIoO3C1d15dJVTcf7Q829rXMyJ/iYPE6uauk2cZFFyCOaMAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T13:51:29.802419Z"},"content_sha256":"ad873d688648248f4d3f883dfa806fb941237bd9ce5809573916e3939470c839","schema_version":"1.0","event_id":"sha256:ad873d688648248f4d3f883dfa806fb941237bd9ce5809573916e3939470c839"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:DKSQSWHTSJJH6WWT5NLHUHDURY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Closer Look at the LkCa 15 Protoplanetary Disk","license":"http://creativecommons.org/licenses/publicdomain/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.EP","authors_text":"David J. Wilner, Katherine A. Rosenfeld, Michael Bremer, Sean M. Andrews","submitted_at":"2011-10-18T02:19:56Z","abstract_excerpt":"We present 870 micron observations of dust continuum emission from the LkCa 15 protoplanetary disk at high angular resolution (with a characteristic scale of 0.25\" = 35 AU), obtained with the IRAM Plateau de Bure interferometer and supplemented by slightly lower resolution observations from the Submillimeter Array. We fit these data with simple morphological models to characterize the spectacular ring-like emission structure of this disk. Our analysis indicates that a small amount of 870 micron dust emission (~5 mJy) originates inside a large (40-50 AU radius) low optical depth cavity. This re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.3865","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":"2026-05-18T02:00:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QIP8W6JkRvrwo2EqmJYA3q0XTDZ2/7rz4CxuUuSPE94vLHf0NrWSfylccH4YcR65iaFUF6NeRU7F4V5J3U6HBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T13:51:29.802764Z"},"content_sha256":"26545a26cb29c766ecdd5af195fa4b28761f40d11689d8e3fdc4146fab321cf3","schema_version":"1.0","event_id":"sha256:26545a26cb29c766ecdd5af195fa4b28761f40d11689d8e3fdc4146fab321cf3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DKSQSWHTSJJH6WWT5NLHUHDURY/bundle.json","state_url":"https://pith.science/pith/DKSQSWHTSJJH6WWT5NLHUHDURY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DKSQSWHTSJJH6WWT5NLHUHDURY/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":"2026-05-28T13:51:29Z","links":{"resolver":"https://pith.science/pith/DKSQSWHTSJJH6WWT5NLHUHDURY","bundle":"https://pith.science/pith/DKSQSWHTSJJH6WWT5NLHUHDURY/bundle.json","state":"https://pith.science/pith/DKSQSWHTSJJH6WWT5NLHUHDURY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DKSQSWHTSJJH6WWT5NLHUHDURY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:DKSQSWHTSJJH6WWT5NLHUHDURY","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":"38fe88938f003e9953b3df6adb10aac6116f8b2b9d246345c4e1e92ddfa9500d","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.EP","submitted_at":"2011-10-18T02:19:56Z","title_canon_sha256":"d78d5c4237b259aa086c3854f5fb0c9d89381244805030ef617de2b6b4fb5852"},"schema_version":"1.0","source":{"id":"1110.3865","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.3865","created_at":"2026-05-18T02:00:09Z"},{"alias_kind":"arxiv_version","alias_value":"1110.3865v1","created_at":"2026-05-18T02:00:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.3865","created_at":"2026-05-18T02:00:09Z"},{"alias_kind":"pith_short_12","alias_value":"DKSQSWHTSJJH","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"DKSQSWHTSJJH6WWT","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"DKSQSWHT","created_at":"2026-05-18T12:26:26Z"}],"graph_snapshots":[{"event_id":"sha256:26545a26cb29c766ecdd5af195fa4b28761f40d11689d8e3fdc4146fab321cf3","target":"graph","created_at":"2026-05-18T02:00:09Z","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 870 micron observations of dust continuum emission from the LkCa 15 protoplanetary disk at high angular resolution (with a characteristic scale of 0.25\" = 35 AU), obtained with the IRAM Plateau de Bure interferometer and supplemented by slightly lower resolution observations from the Submillimeter Array. We fit these data with simple morphological models to characterize the spectacular ring-like emission structure of this disk. Our analysis indicates that a small amount of 870 micron dust emission (~5 mJy) originates inside a large (40-50 AU radius) low optical depth cavity. This re","authors_text":"David J. Wilner, Katherine A. Rosenfeld, Michael Bremer, Sean M. Andrews","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.EP","submitted_at":"2011-10-18T02:19:56Z","title":"A Closer Look at the LkCa 15 Protoplanetary Disk"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.3865","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:ad873d688648248f4d3f883dfa806fb941237bd9ce5809573916e3939470c839","target":"record","created_at":"2026-05-18T02:00:09Z","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":"38fe88938f003e9953b3df6adb10aac6116f8b2b9d246345c4e1e92ddfa9500d","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.EP","submitted_at":"2011-10-18T02:19:56Z","title_canon_sha256":"d78d5c4237b259aa086c3854f5fb0c9d89381244805030ef617de2b6b4fb5852"},"schema_version":"1.0","source":{"id":"1110.3865","kind":"arxiv","version":1}},"canonical_sha256":"1aa50958f392527f5ad3eb567a1c748e15ed288c6f8eb7e27a50130c5703d4de","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1aa50958f392527f5ad3eb567a1c748e15ed288c6f8eb7e27a50130c5703d4de","first_computed_at":"2026-05-18T02:00:09.636539Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:09.636539Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"F5wVvRmToDegU70Lie6BkWb2A2R9X4u8y+8AFK9KegQqR4u53STm3FM5kTawz4FgfiznSTQ62Buez7pm2QjRCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:09.637337Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.3865","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad873d688648248f4d3f883dfa806fb941237bd9ce5809573916e3939470c839","sha256:26545a26cb29c766ecdd5af195fa4b28761f40d11689d8e3fdc4146fab321cf3"],"state_sha256":"919335932e9702261c25c1c9a5beb7a35ab4cc6c74ac99b07e30ab943e07d355"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t2IDtAAPlD1ruwvbhkWmO4Mr0tvHRYyHmeXq8DuzQkflBGBRzQoZRs7PL8LbLpjSaKqMYauj6ayoVqkL+slcCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T13:51:29.804682Z","bundle_sha256":"1b80a9f79ac8ee618dd330b6555cdc14e3302ddc2358eeddbef8bd597f604a7f"}}