{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:YMTCFFCK3CKH5ALJ3YFSVDTIMV","short_pith_number":"pith:YMTCFFCK","canonical_record":{"source":{"id":"1306.4924","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-06-20T16:03:14Z","cross_cats_sorted":[],"title_canon_sha256":"7f07b513059cedcd5ec817537e385af56b7e32e4e3c9e60e3f0698e58bcaaf0f","abstract_canon_sha256":"bcaf05cdf9cf61ed8afa5fc27b9ef10e6095c00f9b56611d20a6d9cb77af00b7"},"schema_version":"1.0"},"canonical_sha256":"c32622944ad8947e8169de0b2a8e686544dd46046108d3278a453ca7e4bdc9ac","source":{"kind":"arxiv","id":"1306.4924","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.4924","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"arxiv_version","alias_value":"1306.4924v1","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.4924","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"pith_short_12","alias_value":"YMTCFFCK3CKH","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"YMTCFFCK3CKH5ALJ","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"YMTCFFCK","created_at":"2026-05-18T12:28:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:YMTCFFCK3CKH5ALJ3YFSVDTIMV","target":"record","payload":{"canonical_record":{"source":{"id":"1306.4924","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-06-20T16:03:14Z","cross_cats_sorted":[],"title_canon_sha256":"7f07b513059cedcd5ec817537e385af56b7e32e4e3c9e60e3f0698e58bcaaf0f","abstract_canon_sha256":"bcaf05cdf9cf61ed8afa5fc27b9ef10e6095c00f9b56611d20a6d9cb77af00b7"},"schema_version":"1.0"},"canonical_sha256":"c32622944ad8947e8169de0b2a8e686544dd46046108d3278a453ca7e4bdc9ac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:49:14.305244Z","signature_b64":"sallC6o1Pvb7+oH+jG774R7rQq3srFKEwHP9kEllpc5gn+3iFQQSIMfKJ8nRk7LkaK4Fnkx7x6VGEsddJ9ljAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c32622944ad8947e8169de0b2a8e686544dd46046108d3278a453ca7e4bdc9ac","last_reissued_at":"2026-05-18T01:49:14.304679Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:49:14.304679Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.4924","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":"2026-05-18T01:49:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1HWJ92YHiSRZV4c4SELKAcAdthj2XVGlgRQTQOA0+lbtBdQ4jmq9oTSUZlqAf8IGyEkQwi/nSlJ9EOeK3L0wAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T14:39:16.530071Z"},"content_sha256":"abe5cc9ceaccb2eb7dc9dee8b5040e609ff4068bb164ca7cb0c5756aed2db4ef","schema_version":"1.0","event_id":"sha256:abe5cc9ceaccb2eb7dc9dee8b5040e609ff4068bb164ca7cb0c5756aed2db4ef"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:YMTCFFCK3CKH5ALJ3YFSVDTIMV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Radiative feedback from protoplanets in self-gravitating protoplanetary discs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Sergei Nayakshin, Seung-Hoon Cha","submitted_at":"2013-06-20T16:03:14Z","abstract_excerpt":"It is well known that massive protoplanetary disc are gravitationally unstable beyond tens of AU from their parent star. The eventual fate of the self-gravitating gas clumps born in the disc is currently not understood, although the range of uncertainty is well known. If clumps migrate inward rapidly, they are tidally disrupted, which may leave behind giant or terrestrial like planets. On the other hand, if clumps migrate less rapidly, they tend to accrete gas, becoming proto brown dwarfs or low mass companions to the parent star. Here we argue that radiative feedback of contracting clumps (pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.4924","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":"2026-05-18T01:49:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aMqHlCET9kBd21OZNIBLK8u0+d+iS9LnRHfAYE4eeTJnsSyorq8vUYHnAjjsO/1y2+qI7mkkhmLzdRmLq81yDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T14:39:16.530790Z"},"content_sha256":"30a0b684b9fa9b41525e882fb5862f90a0c5c62e733373c7eb7a58fefbbaae43","schema_version":"1.0","event_id":"sha256:30a0b684b9fa9b41525e882fb5862f90a0c5c62e733373c7eb7a58fefbbaae43"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YMTCFFCK3CKH5ALJ3YFSVDTIMV/bundle.json","state_url":"https://pith.science/pith/YMTCFFCK3CKH5ALJ3YFSVDTIMV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YMTCFFCK3CKH5ALJ3YFSVDTIMV/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":"2026-05-29T14:39:16Z","links":{"resolver":"https://pith.science/pith/YMTCFFCK3CKH5ALJ3YFSVDTIMV","bundle":"https://pith.science/pith/YMTCFFCK3CKH5ALJ3YFSVDTIMV/bundle.json","state":"https://pith.science/pith/YMTCFFCK3CKH5ALJ3YFSVDTIMV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YMTCFFCK3CKH5ALJ3YFSVDTIMV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:YMTCFFCK3CKH5ALJ3YFSVDTIMV","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":"bcaf05cdf9cf61ed8afa5fc27b9ef10e6095c00f9b56611d20a6d9cb77af00b7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-06-20T16:03:14Z","title_canon_sha256":"7f07b513059cedcd5ec817537e385af56b7e32e4e3c9e60e3f0698e58bcaaf0f"},"schema_version":"1.0","source":{"id":"1306.4924","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.4924","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"arxiv_version","alias_value":"1306.4924v1","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.4924","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"pith_short_12","alias_value":"YMTCFFCK3CKH","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"YMTCFFCK3CKH5ALJ","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"YMTCFFCK","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:30a0b684b9fa9b41525e882fb5862f90a0c5c62e733373c7eb7a58fefbbaae43","target":"graph","created_at":"2026-05-18T01:49:14Z","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":"It is well known that massive protoplanetary disc are gravitationally unstable beyond tens of AU from their parent star. The eventual fate of the self-gravitating gas clumps born in the disc is currently not understood, although the range of uncertainty is well known. If clumps migrate inward rapidly, they are tidally disrupted, which may leave behind giant or terrestrial like planets. On the other hand, if clumps migrate less rapidly, they tend to accrete gas, becoming proto brown dwarfs or low mass companions to the parent star. Here we argue that radiative feedback of contracting clumps (pr","authors_text":"Sergei Nayakshin, Seung-Hoon Cha","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-06-20T16:03:14Z","title":"Radiative feedback from protoplanets in self-gravitating protoplanetary discs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.4924","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:abe5cc9ceaccb2eb7dc9dee8b5040e609ff4068bb164ca7cb0c5756aed2db4ef","target":"record","created_at":"2026-05-18T01:49:14Z","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":"bcaf05cdf9cf61ed8afa5fc27b9ef10e6095c00f9b56611d20a6d9cb77af00b7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-06-20T16:03:14Z","title_canon_sha256":"7f07b513059cedcd5ec817537e385af56b7e32e4e3c9e60e3f0698e58bcaaf0f"},"schema_version":"1.0","source":{"id":"1306.4924","kind":"arxiv","version":1}},"canonical_sha256":"c32622944ad8947e8169de0b2a8e686544dd46046108d3278a453ca7e4bdc9ac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c32622944ad8947e8169de0b2a8e686544dd46046108d3278a453ca7e4bdc9ac","first_computed_at":"2026-05-18T01:49:14.304679Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:14.304679Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sallC6o1Pvb7+oH+jG774R7rQq3srFKEwHP9kEllpc5gn+3iFQQSIMfKJ8nRk7LkaK4Fnkx7x6VGEsddJ9ljAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:14.305244Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.4924","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:abe5cc9ceaccb2eb7dc9dee8b5040e609ff4068bb164ca7cb0c5756aed2db4ef","sha256:30a0b684b9fa9b41525e882fb5862f90a0c5c62e733373c7eb7a58fefbbaae43"],"state_sha256":"5bef58f1be80641dd94f16d61bea873d1c55b6cedb740b301855a983b1c526a4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yIrKNEglKYzldXdZJIyK7AjK5suM/dPCsHpjXDjm6378kye8VOKXoQxCLO+wH2O/WQMJs5yK2MfmbDBRs4BtCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T14:39:16.534489Z","bundle_sha256":"7beae85d1ab41d95f97efd372999f3a5eb1067e4c0fe58593f74c06d305559a2"}}