{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:HPZTV6KJRQGTUNVKZHP2HFES53","short_pith_number":"pith:HPZTV6KJ","canonical_record":{"source":{"id":"2301.13297","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-01-30T21:25:55Z","cross_cats_sorted":[],"title_canon_sha256":"03d923ce4f5ab21b2b40b0261c4c2f21247722d8a4c1f8ced76c16f217deb936","abstract_canon_sha256":"6203df89af085fc307089edcbe07c306e4b7bcce894223c378d12b8eb16e43d3"},"schema_version":"1.0"},"canonical_sha256":"3bf33af9498c0d3a36aac9dfa39492eecaa8d5689542d26c5d94a66b3252c68d","source":{"kind":"arxiv","id":"2301.13297","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.13297","created_at":"2026-07-05T06:18:10Z"},{"alias_kind":"arxiv_version","alias_value":"2301.13297v2","created_at":"2026-07-05T06:18:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.13297","created_at":"2026-07-05T06:18:10Z"},{"alias_kind":"pith_short_12","alias_value":"HPZTV6KJRQGT","created_at":"2026-07-05T06:18:10Z"},{"alias_kind":"pith_short_16","alias_value":"HPZTV6KJRQGTUNVK","created_at":"2026-07-05T06:18:10Z"},{"alias_kind":"pith_short_8","alias_value":"HPZTV6KJ","created_at":"2026-07-05T06:18:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:HPZTV6KJRQGTUNVKZHP2HFES53","target":"record","payload":{"canonical_record":{"source":{"id":"2301.13297","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-01-30T21:25:55Z","cross_cats_sorted":[],"title_canon_sha256":"03d923ce4f5ab21b2b40b0261c4c2f21247722d8a4c1f8ced76c16f217deb936","abstract_canon_sha256":"6203df89af085fc307089edcbe07c306e4b7bcce894223c378d12b8eb16e43d3"},"schema_version":"1.0"},"canonical_sha256":"3bf33af9498c0d3a36aac9dfa39492eecaa8d5689542d26c5d94a66b3252c68d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:18:10.605856Z","signature_b64":"UN0z4V36wKvYWaZjzswVKK+weThRqXl0urywKcnNcPASYHkPXTSS4NzuzEBei8wbAz4ZJf97T7qpm8pkJ+sbAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3bf33af9498c0d3a36aac9dfa39492eecaa8d5689542d26c5d94a66b3252c68d","last_reissued_at":"2026-07-05T06:18:10.605361Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:18:10.605361Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2301.13297","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":"2026-07-05T06:18:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+u5XctuCn1vycMVgxVCaKNjGEbneRPCb2ys5NIbcnMetuH4ODrLWF9QtUsWLBzX+CdxHCaAXKH0xOSaGetqvCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T16:27:40.511624Z"},"content_sha256":"bbd613f4b0c743073a20cd80e076d774de69a7a52a64864f073df36c7d01c48a","schema_version":"1.0","event_id":"sha256:bbd613f4b0c743073a20cd80e076d774de69a7a52a64864f073df36c7d01c48a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:HPZTV6KJRQGTUNVKZHP2HFES53","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Planetesimal Initial Mass Functions following Diffusion Regulated Gravitational Collapse","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Konstantin Gerbig, Rixin Li","submitted_at":"2023-01-30T21:25:55Z","abstract_excerpt":"The initial mass function (IMF) of planetesimals is of key importance for understanding the initial stages of planet formation, yet theoretical predictions so far have been insufficient in explaining the variety of IMFs found in simulations. Here, we connect diffusion-tidal-shear limited planetesimal formation within the framework of a Toomre-like instability in the particle mid-plane of a protoplanetary disk to an analytic prediction for the planetesimal IMF. The shape of the IMF is set by the stability parameter $Q_\\mathrm{p}$, which in turn depends on the particle Stokes number, the Toomre "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.13297","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2301.13297/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":"2026-07-05T06:18:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IxMqS7k2ggYW1CP+/qaQ7KYFO7PQVjHRFIV0eF6uNBbRVZv4eoR/ExUDyUzeqdXOXdfEHSYLxnuCh3D2Yle6Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T16:27:40.512158Z"},"content_sha256":"883a582a95a4bede30f5934a014ccdea1df281de6277ba3456c6d86bb2222888","schema_version":"1.0","event_id":"sha256:883a582a95a4bede30f5934a014ccdea1df281de6277ba3456c6d86bb2222888"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HPZTV6KJRQGTUNVKZHP2HFES53/bundle.json","state_url":"https://pith.science/pith/HPZTV6KJRQGTUNVKZHP2HFES53/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HPZTV6KJRQGTUNVKZHP2HFES53/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":"2026-08-10T16:27:40Z","links":{"resolver":"https://pith.science/pith/HPZTV6KJRQGTUNVKZHP2HFES53","bundle":"https://pith.science/pith/HPZTV6KJRQGTUNVKZHP2HFES53/bundle.json","state":"https://pith.science/pith/HPZTV6KJRQGTUNVKZHP2HFES53/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HPZTV6KJRQGTUNVKZHP2HFES53/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:HPZTV6KJRQGTUNVKZHP2HFES53","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":"6203df89af085fc307089edcbe07c306e4b7bcce894223c378d12b8eb16e43d3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-01-30T21:25:55Z","title_canon_sha256":"03d923ce4f5ab21b2b40b0261c4c2f21247722d8a4c1f8ced76c16f217deb936"},"schema_version":"1.0","source":{"id":"2301.13297","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.13297","created_at":"2026-07-05T06:18:10Z"},{"alias_kind":"arxiv_version","alias_value":"2301.13297v2","created_at":"2026-07-05T06:18:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.13297","created_at":"2026-07-05T06:18:10Z"},{"alias_kind":"pith_short_12","alias_value":"HPZTV6KJRQGT","created_at":"2026-07-05T06:18:10Z"},{"alias_kind":"pith_short_16","alias_value":"HPZTV6KJRQGTUNVK","created_at":"2026-07-05T06:18:10Z"},{"alias_kind":"pith_short_8","alias_value":"HPZTV6KJ","created_at":"2026-07-05T06:18:10Z"}],"graph_snapshots":[{"event_id":"sha256:883a582a95a4bede30f5934a014ccdea1df281de6277ba3456c6d86bb2222888","target":"graph","created_at":"2026-07-05T06:18:10Z","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/2301.13297/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The initial mass function (IMF) of planetesimals is of key importance for understanding the initial stages of planet formation, yet theoretical predictions so far have been insufficient in explaining the variety of IMFs found in simulations. Here, we connect diffusion-tidal-shear limited planetesimal formation within the framework of a Toomre-like instability in the particle mid-plane of a protoplanetary disk to an analytic prediction for the planetesimal IMF. The shape of the IMF is set by the stability parameter $Q_\\mathrm{p}$, which in turn depends on the particle Stokes number, the Toomre ","authors_text":"Konstantin Gerbig, Rixin Li","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-01-30T21:25:55Z","title":"Planetesimal Initial Mass Functions following Diffusion Regulated Gravitational Collapse"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.13297","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:bbd613f4b0c743073a20cd80e076d774de69a7a52a64864f073df36c7d01c48a","target":"record","created_at":"2026-07-05T06:18:10Z","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":"6203df89af085fc307089edcbe07c306e4b7bcce894223c378d12b8eb16e43d3","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2023-01-30T21:25:55Z","title_canon_sha256":"03d923ce4f5ab21b2b40b0261c4c2f21247722d8a4c1f8ced76c16f217deb936"},"schema_version":"1.0","source":{"id":"2301.13297","kind":"arxiv","version":2}},"canonical_sha256":"3bf33af9498c0d3a36aac9dfa39492eecaa8d5689542d26c5d94a66b3252c68d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3bf33af9498c0d3a36aac9dfa39492eecaa8d5689542d26c5d94a66b3252c68d","first_computed_at":"2026-07-05T06:18:10.605361Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:18:10.605361Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UN0z4V36wKvYWaZjzswVKK+weThRqXl0urywKcnNcPASYHkPXTSS4NzuzEBei8wbAz4ZJf97T7qpm8pkJ+sbAA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:18:10.605856Z","signed_message":"canonical_sha256_bytes"},"source_id":"2301.13297","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bbd613f4b0c743073a20cd80e076d774de69a7a52a64864f073df36c7d01c48a","sha256:883a582a95a4bede30f5934a014ccdea1df281de6277ba3456c6d86bb2222888"],"state_sha256":"c6a4e6e5160c4a5caba59e7c4184566fc12cc1da0e94489c092f95c4402ace5e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KO2SiYI5VrKi42HEBO9RRGaRIhHIbWVFPv9rCXdwqwI1d86XNyu7+K8L29pnx2LuLwrRSEmLNMtVEQr3qY/xBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T16:27:40.517773Z","bundle_sha256":"c478fd38ba3862ebe117bd86f580e1bc5ee5ea7203a63f71e1bece0cc4f8ce3e"}}