{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:YM4TJYLOGYDUZR32MCI77SBMPD","short_pith_number":"pith:YM4TJYLO","canonical_record":{"source":{"id":"1908.08710","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-08-23T08:14:35Z","cross_cats_sorted":[],"title_canon_sha256":"feefcf6dd7fe6f39d2472e181511ecb409b761889b5d8f1c10d684741bae492d","abstract_canon_sha256":"9c470b18db3386d13dc98b63e619e3d476fd2511034ef3bd5b2eeb6751d18d9f"},"schema_version":"1.0"},"canonical_sha256":"c33934e16e36074cc77a6091ffc82c78d42659b2fa86d1db87770ee8f992e772","source":{"kind":"arxiv","id":"1908.08710","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.08710","created_at":"2026-07-05T00:08:37Z"},{"alias_kind":"arxiv_version","alias_value":"1908.08710v1","created_at":"2026-07-05T00:08:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.08710","created_at":"2026-07-05T00:08:37Z"},{"alias_kind":"pith_short_12","alias_value":"YM4TJYLOGYDU","created_at":"2026-07-05T00:08:37Z"},{"alias_kind":"pith_short_16","alias_value":"YM4TJYLOGYDUZR32","created_at":"2026-07-05T00:08:37Z"},{"alias_kind":"pith_short_8","alias_value":"YM4TJYLO","created_at":"2026-07-05T00:08:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:YM4TJYLOGYDUZR32MCI77SBMPD","target":"record","payload":{"canonical_record":{"source":{"id":"1908.08710","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-08-23T08:14:35Z","cross_cats_sorted":[],"title_canon_sha256":"feefcf6dd7fe6f39d2472e181511ecb409b761889b5d8f1c10d684741bae492d","abstract_canon_sha256":"9c470b18db3386d13dc98b63e619e3d476fd2511034ef3bd5b2eeb6751d18d9f"},"schema_version":"1.0"},"canonical_sha256":"c33934e16e36074cc77a6091ffc82c78d42659b2fa86d1db87770ee8f992e772","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:08:37.832560Z","signature_b64":"qclg6CrjAnkp+sAELpBvqmpQaHa6uUJ2pYWStesThBJxkfSX038oG9ZZ2qxFUUha73m4vVUQz8b9IwEKRbftCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c33934e16e36074cc77a6091ffc82c78d42659b2fa86d1db87770ee8f992e772","last_reissued_at":"2026-07-05T00:08:37.832080Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:08:37.832080Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.08710","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":"2026-07-05T00:08:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cDFMDzf0sXdw0wj8GSgzhGuUVtRmq7/l9appSFPs9aO6GLSqO8PZyGKGateIQSwOygXI9SZMvQJ4r0G8+142CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T13:09:19.358330Z"},"content_sha256":"0ce59d8bdc72f2f9d2877b1f4e2ed5773b1d612b14a03ceb0ead7db6215a5ddc","schema_version":"1.0","event_id":"sha256:0ce59d8bdc72f2f9d2877b1f4e2ed5773b1d612b14a03ceb0ead7db6215a5ddc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:YM4TJYLOGYDUZR32MCI77SBMPD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Inner rocky super-Earth formation: distinguishing the formation pathways in viscously heated and passive discs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Bertram Bitsch","submitted_at":"2019-08-23T08:14:35Z","abstract_excerpt":"The formation of super-Earths is strongly linked to the structure of the protoplanetary disc, which determines growth and migration. In the pebble accretion scenario, planets grow to the pebble isolation mass, at which the planet carves a small gap in the gas disc halting the pebble flux and thus its growth. The pebble isolation mass scales with the disc's aspect ratio, which directly depends on the disc structure. I compare the growth of super-Earths in viscously heated discs and discs purely heated by the central star with super-Earth observations. This allows two formation pathways of super"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.08710","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/1908.08710/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":"2026-07-05T00:08:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L9FnehxOzkKU6I4IteSrArqVPFdZ6h7UXEgx5QZAUudKsunK4xKmxNvidbhtdbv+YZkeUpiKo8/GbPUJB9ekBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T13:09:19.358846Z"},"content_sha256":"dbd40aaf37d2a99e5f133edc8fad43d8e9f0fef5a8ad6a13855cb6c0b60ebe7e","schema_version":"1.0","event_id":"sha256:dbd40aaf37d2a99e5f133edc8fad43d8e9f0fef5a8ad6a13855cb6c0b60ebe7e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YM4TJYLOGYDUZR32MCI77SBMPD/bundle.json","state_url":"https://pith.science/pith/YM4TJYLOGYDUZR32MCI77SBMPD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YM4TJYLOGYDUZR32MCI77SBMPD/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":"2026-08-16T13:09:19Z","links":{"resolver":"https://pith.science/pith/YM4TJYLOGYDUZR32MCI77SBMPD","bundle":"https://pith.science/pith/YM4TJYLOGYDUZR32MCI77SBMPD/bundle.json","state":"https://pith.science/pith/YM4TJYLOGYDUZR32MCI77SBMPD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YM4TJYLOGYDUZR32MCI77SBMPD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:YM4TJYLOGYDUZR32MCI77SBMPD","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":"9c470b18db3386d13dc98b63e619e3d476fd2511034ef3bd5b2eeb6751d18d9f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-08-23T08:14:35Z","title_canon_sha256":"feefcf6dd7fe6f39d2472e181511ecb409b761889b5d8f1c10d684741bae492d"},"schema_version":"1.0","source":{"id":"1908.08710","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.08710","created_at":"2026-07-05T00:08:37Z"},{"alias_kind":"arxiv_version","alias_value":"1908.08710v1","created_at":"2026-07-05T00:08:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.08710","created_at":"2026-07-05T00:08:37Z"},{"alias_kind":"pith_short_12","alias_value":"YM4TJYLOGYDU","created_at":"2026-07-05T00:08:37Z"},{"alias_kind":"pith_short_16","alias_value":"YM4TJYLOGYDUZR32","created_at":"2026-07-05T00:08:37Z"},{"alias_kind":"pith_short_8","alias_value":"YM4TJYLO","created_at":"2026-07-05T00:08:37Z"}],"graph_snapshots":[{"event_id":"sha256:dbd40aaf37d2a99e5f133edc8fad43d8e9f0fef5a8ad6a13855cb6c0b60ebe7e","target":"graph","created_at":"2026-07-05T00:08:37Z","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/1908.08710/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The formation of super-Earths is strongly linked to the structure of the protoplanetary disc, which determines growth and migration. In the pebble accretion scenario, planets grow to the pebble isolation mass, at which the planet carves a small gap in the gas disc halting the pebble flux and thus its growth. The pebble isolation mass scales with the disc's aspect ratio, which directly depends on the disc structure. I compare the growth of super-Earths in viscously heated discs and discs purely heated by the central star with super-Earth observations. This allows two formation pathways of super","authors_text":"Bertram Bitsch","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-08-23T08:14:35Z","title":"Inner rocky super-Earth formation: distinguishing the formation pathways in viscously heated and passive discs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.08710","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":"sha256:0ce59d8bdc72f2f9d2877b1f4e2ed5773b1d612b14a03ceb0ead7db6215a5ddc","target":"record","created_at":"2026-07-05T00:08:37Z","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":"9c470b18db3386d13dc98b63e619e3d476fd2511034ef3bd5b2eeb6751d18d9f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-08-23T08:14:35Z","title_canon_sha256":"feefcf6dd7fe6f39d2472e181511ecb409b761889b5d8f1c10d684741bae492d"},"schema_version":"1.0","source":{"id":"1908.08710","kind":"arxiv","version":1}},"canonical_sha256":"c33934e16e36074cc77a6091ffc82c78d42659b2fa86d1db87770ee8f992e772","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c33934e16e36074cc77a6091ffc82c78d42659b2fa86d1db87770ee8f992e772","first_computed_at":"2026-07-05T00:08:37.832080Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:08:37.832080Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qclg6CrjAnkp+sAELpBvqmpQaHa6uUJ2pYWStesThBJxkfSX038oG9ZZ2qxFUUha73m4vVUQz8b9IwEKRbftCg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:08:37.832560Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.08710","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0ce59d8bdc72f2f9d2877b1f4e2ed5773b1d612b14a03ceb0ead7db6215a5ddc","sha256:dbd40aaf37d2a99e5f133edc8fad43d8e9f0fef5a8ad6a13855cb6c0b60ebe7e"],"state_sha256":"f3ffd3d548372642c6307aeff241f7117f9a1971d91e48a450599d10d9be109f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hpE8Eg4yfOODygA2vmTJa0JcNboKn/2/Az4spJtgzhfkf45P0DILaMLRhspeMe436WgTCF6Q89w5PDVXjQ6lCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T13:09:19.364031Z","bundle_sha256":"33385d56ad48163efd270314f2dc4dfd9335fd430c50b77ba0f9830c46399f1b"}}