{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:MJJUK53XBHHIJ464NZYOPQM5DK","short_pith_number":"pith:MJJUK53X","canonical_record":{"source":{"id":"1104.3987","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-04-20T10:37:48Z","cross_cats_sorted":[],"title_canon_sha256":"d4ee3dbfbe814a7ad7796b94c833597f6caad6494e3d4506b54737bda7cb6b83","abstract_canon_sha256":"6f49689f35427fd090b3fede2fada73c3f17869e5a7acf5c51e20e6e3e977efe"},"schema_version":"1.0"},"canonical_sha256":"625345777709ce84f3dc6e70e7c19d1aa2b1a66675469a927fed01d04b5a1413","source":{"kind":"arxiv","id":"1104.3987","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.3987","created_at":"2026-05-18T04:19:33Z"},{"alias_kind":"arxiv_version","alias_value":"1104.3987v2","created_at":"2026-05-18T04:19:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.3987","created_at":"2026-05-18T04:19:33Z"},{"alias_kind":"pith_short_12","alias_value":"MJJUK53XBHHI","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"MJJUK53XBHHIJ464","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"MJJUK53X","created_at":"2026-05-18T12:26:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:MJJUK53XBHHIJ464NZYOPQM5DK","target":"record","payload":{"canonical_record":{"source":{"id":"1104.3987","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-04-20T10:37:48Z","cross_cats_sorted":[],"title_canon_sha256":"d4ee3dbfbe814a7ad7796b94c833597f6caad6494e3d4506b54737bda7cb6b83","abstract_canon_sha256":"6f49689f35427fd090b3fede2fada73c3f17869e5a7acf5c51e20e6e3e977efe"},"schema_version":"1.0"},"canonical_sha256":"625345777709ce84f3dc6e70e7c19d1aa2b1a66675469a927fed01d04b5a1413","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:19:33.307833Z","signature_b64":"NFjhpLl5PJQ0gCipow2+Ol3T1GO5uIROyhIq5JqD+YsmPlRT/cIBUSOY6PVFEXl7vi5yLox287x988fXra2sCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"625345777709ce84f3dc6e70e7c19d1aa2b1a66675469a927fed01d04b5a1413","last_reissued_at":"2026-05-18T04:19:33.307223Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:19:33.307223Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1104.3987","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:19:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8dRgzWX7m+ZHlK1AsQZGdQIQ/HrHW7fBuebhAVDDGFCMLT0jLme+sl8oyzzTwaJRIRrHMOqV/GjZsBgbRasYCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T02:59:08.771347Z"},"content_sha256":"aedb15156c43eb991fd0317fcfb8b60686d0cd5229c873ced46e240add748afd","schema_version":"1.0","event_id":"sha256:aedb15156c43eb991fd0317fcfb8b60686d0cd5229c873ced46e240add748afd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:MJJUK53XBHHIJ464NZYOPQM5DK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the dynamics of planetesimals embedded in turbulent protoplanetary discs with dead zones","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Neal J. Turner, Oliver Gressel, Richard P. Nelson","submitted_at":"2011-04-20T10:37:48Z","abstract_excerpt":"(abridged) Accretion in protoplanetary discs is thought to be driven by [...] turbulence via the magnetorotational instability (MRI). Recent work has shown that a planetesimal swarm embedded in a fully turbulent disc is subject to strong excitation of the velocity dispersion, leading to collisional destruction of bodies with radii R_p < 100 km. Significant diffusion of planetesimal semimajor axes also arises, leading to large-scale spreading of the planetesimal population throughout the inner regions of the protoplanetary disc, in apparent contradiction of constraints provided by the distribut"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.3987","kind":"arxiv","version":2},"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":"2026-05-18T04:19:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LH8EsAKwxGd9QcjAmCiTs1uzh2KLeaGBLH+1L8sz8bn9r/v5c5R5b+KSwgCfaq4xxqkiTFJrwBbO3+I9enIyBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T02:59:08.771814Z"},"content_sha256":"7ace5681574bd7e6d75b52575c5e7d0b176267cea039e693f903b6766806c1d0","schema_version":"1.0","event_id":"sha256:7ace5681574bd7e6d75b52575c5e7d0b176267cea039e693f903b6766806c1d0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MJJUK53XBHHIJ464NZYOPQM5DK/bundle.json","state_url":"https://pith.science/pith/MJJUK53XBHHIJ464NZYOPQM5DK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MJJUK53XBHHIJ464NZYOPQM5DK/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":"2026-06-04T02:59:08Z","links":{"resolver":"https://pith.science/pith/MJJUK53XBHHIJ464NZYOPQM5DK","bundle":"https://pith.science/pith/MJJUK53XBHHIJ464NZYOPQM5DK/bundle.json","state":"https://pith.science/pith/MJJUK53XBHHIJ464NZYOPQM5DK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MJJUK53XBHHIJ464NZYOPQM5DK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:MJJUK53XBHHIJ464NZYOPQM5DK","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":"6f49689f35427fd090b3fede2fada73c3f17869e5a7acf5c51e20e6e3e977efe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-04-20T10:37:48Z","title_canon_sha256":"d4ee3dbfbe814a7ad7796b94c833597f6caad6494e3d4506b54737bda7cb6b83"},"schema_version":"1.0","source":{"id":"1104.3987","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.3987","created_at":"2026-05-18T04:19:33Z"},{"alias_kind":"arxiv_version","alias_value":"1104.3987v2","created_at":"2026-05-18T04:19:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.3987","created_at":"2026-05-18T04:19:33Z"},{"alias_kind":"pith_short_12","alias_value":"MJJUK53XBHHI","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"MJJUK53XBHHIJ464","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"MJJUK53X","created_at":"2026-05-18T12:26:34Z"}],"graph_snapshots":[{"event_id":"sha256:7ace5681574bd7e6d75b52575c5e7d0b176267cea039e693f903b6766806c1d0","target":"graph","created_at":"2026-05-18T04:19:33Z","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":"(abridged) Accretion in protoplanetary discs is thought to be driven by [...] turbulence via the magnetorotational instability (MRI). Recent work has shown that a planetesimal swarm embedded in a fully turbulent disc is subject to strong excitation of the velocity dispersion, leading to collisional destruction of bodies with radii R_p < 100 km. Significant diffusion of planetesimal semimajor axes also arises, leading to large-scale spreading of the planetesimal population throughout the inner regions of the protoplanetary disc, in apparent contradiction of constraints provided by the distribut","authors_text":"Neal J. Turner, Oliver Gressel, Richard P. Nelson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-04-20T10:37:48Z","title":"On the dynamics of planetesimals embedded in turbulent protoplanetary discs with dead zones"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.3987","kind":"arxiv","version":2},"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:aedb15156c43eb991fd0317fcfb8b60686d0cd5229c873ced46e240add748afd","target":"record","created_at":"2026-05-18T04:19:33Z","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":"6f49689f35427fd090b3fede2fada73c3f17869e5a7acf5c51e20e6e3e977efe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2011-04-20T10:37:48Z","title_canon_sha256":"d4ee3dbfbe814a7ad7796b94c833597f6caad6494e3d4506b54737bda7cb6b83"},"schema_version":"1.0","source":{"id":"1104.3987","kind":"arxiv","version":2}},"canonical_sha256":"625345777709ce84f3dc6e70e7c19d1aa2b1a66675469a927fed01d04b5a1413","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"625345777709ce84f3dc6e70e7c19d1aa2b1a66675469a927fed01d04b5a1413","first_computed_at":"2026-05-18T04:19:33.307223Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:19:33.307223Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NFjhpLl5PJQ0gCipow2+Ol3T1GO5uIROyhIq5JqD+YsmPlRT/cIBUSOY6PVFEXl7vi5yLox287x988fXra2sCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:19:33.307833Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.3987","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aedb15156c43eb991fd0317fcfb8b60686d0cd5229c873ced46e240add748afd","sha256:7ace5681574bd7e6d75b52575c5e7d0b176267cea039e693f903b6766806c1d0"],"state_sha256":"3fa827e9fec4d673ad201cc0086ac88edf2d0c3d9c076a5b9c6a745e1517f213"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5XE1Ksz1ql+5nTMpEVU+kydZ7FdrpwWZwv4hiIK/Ppd3MVxoNjHvDXuJmrZexP343lQ577Kgpud+EuFCrEZGCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T02:59:08.774567Z","bundle_sha256":"347ef92cff888f37bf29c764437efea237106c587726d36bf4f243e6685e95b6"}}