{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:HALSW6MKCH5MBXLPNRYA3BCORB","short_pith_number":"pith:HALSW6MK","canonical_record":{"source":{"id":"0806.2990","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-18T13:18:14Z","cross_cats_sorted":[],"title_canon_sha256":"4d1fbd59e337643fb5c8077bd6cadebd286013d60b001e64d95bb1621825d644","abstract_canon_sha256":"5a19302e6cd682cea92ac9992fb0651f2b4cb76f176a552084583c366d9fa447"},"schema_version":"1.0"},"canonical_sha256":"38172b798a11fac0dd6f6c700d844e8861acb0073768027bc02b7d6e91744047","source":{"kind":"arxiv","id":"0806.2990","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0806.2990","created_at":"2026-05-18T02:15:51Z"},{"alias_kind":"arxiv_version","alias_value":"0806.2990v1","created_at":"2026-05-18T02:15:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0806.2990","created_at":"2026-05-18T02:15:51Z"},{"alias_kind":"pith_short_12","alias_value":"HALSW6MKCH5M","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"HALSW6MKCH5MBXLP","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"HALSW6MK","created_at":"2026-05-18T12:25:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:HALSW6MKCH5MBXLPNRYA3BCORB","target":"record","payload":{"canonical_record":{"source":{"id":"0806.2990","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-18T13:18:14Z","cross_cats_sorted":[],"title_canon_sha256":"4d1fbd59e337643fb5c8077bd6cadebd286013d60b001e64d95bb1621825d644","abstract_canon_sha256":"5a19302e6cd682cea92ac9992fb0651f2b4cb76f176a552084583c366d9fa447"},"schema_version":"1.0"},"canonical_sha256":"38172b798a11fac0dd6f6c700d844e8861acb0073768027bc02b7d6e91744047","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:15:51.389787Z","signature_b64":"aAuMbcryZ8E9T0Oy8c1EmGMxfh+QQD/6YOkPae6/OPAXEPrxHCPzwWXwQPdnhZOhA3ECFyQi/q1PJTuobrp9CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"38172b798a11fac0dd6f6c700d844e8861acb0073768027bc02b7d6e91744047","last_reissued_at":"2026-05-18T02:15:51.389358Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:15:51.389358Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0806.2990","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":"2026-05-18T02:15:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U7/w1yT4ujIs3vik6igDMEuS7yHMESh7p8/qLBPsgx+f9QGoIvEVjFwmTZZjLYvzZ2DPdcHGXbMPAXGE0hWXBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T23:31:07.823024Z"},"content_sha256":"d11dc69dada86d7a49853b34cb0ed41bc1097860e9d08b30fdab1797f152145e","schema_version":"1.0","event_id":"sha256:d11dc69dada86d7a49853b34cb0ed41bc1097860e9d08b30fdab1797f152145e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:HALSW6MKCH5MBXLPNRYA3BCORB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Migration of Protoplanets in Radiative Disks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Aurelien Crida (Universiy of Tuebingen), Wilhelm Kley","submitted_at":"2008-06-18T13:18:14Z","abstract_excerpt":"In isothermal disks the migration of protoplanets is directed inward. For small planetary masses the standard type-I migration rates are so fast that this may result in an unrealistic loss of planets into the stars. We investigate the planet-disk interaction in non-isothermal disks and analyze the magnitude and direction of migration for an extended range of planet masses. We have performed detailed two-dimensional numerical simulations of embedded planets including heating/cooling effects as well as radiative diffusion for realistic opacities.\n  In radiative disks, small planets with M_planet"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0806.2990","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":"2026-05-18T02:15:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pd9gosKaWtMURsUVtu+EfioMI4nhBZ92ahE2lMF1039pYypiwZhgH4Gu6d0Sze79OBZcR0fxoI4h1oAvSTKJDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T23:31:07.823761Z"},"content_sha256":"17fe9fe8b1b653d2e782e7035e987d071f0dff2a898c222355e3b1f65e748ee4","schema_version":"1.0","event_id":"sha256:17fe9fe8b1b653d2e782e7035e987d071f0dff2a898c222355e3b1f65e748ee4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HALSW6MKCH5MBXLPNRYA3BCORB/bundle.json","state_url":"https://pith.science/pith/HALSW6MKCH5MBXLPNRYA3BCORB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HALSW6MKCH5MBXLPNRYA3BCORB/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":"2026-06-10T23:31:07Z","links":{"resolver":"https://pith.science/pith/HALSW6MKCH5MBXLPNRYA3BCORB","bundle":"https://pith.science/pith/HALSW6MKCH5MBXLPNRYA3BCORB/bundle.json","state":"https://pith.science/pith/HALSW6MKCH5MBXLPNRYA3BCORB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HALSW6MKCH5MBXLPNRYA3BCORB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:HALSW6MKCH5MBXLPNRYA3BCORB","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":"5a19302e6cd682cea92ac9992fb0651f2b4cb76f176a552084583c366d9fa447","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-18T13:18:14Z","title_canon_sha256":"4d1fbd59e337643fb5c8077bd6cadebd286013d60b001e64d95bb1621825d644"},"schema_version":"1.0","source":{"id":"0806.2990","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0806.2990","created_at":"2026-05-18T02:15:51Z"},{"alias_kind":"arxiv_version","alias_value":"0806.2990v1","created_at":"2026-05-18T02:15:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0806.2990","created_at":"2026-05-18T02:15:51Z"},{"alias_kind":"pith_short_12","alias_value":"HALSW6MKCH5M","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"HALSW6MKCH5MBXLP","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"HALSW6MK","created_at":"2026-05-18T12:25:57Z"}],"graph_snapshots":[{"event_id":"sha256:17fe9fe8b1b653d2e782e7035e987d071f0dff2a898c222355e3b1f65e748ee4","target":"graph","created_at":"2026-05-18T02:15:51Z","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":"In isothermal disks the migration of protoplanets is directed inward. For small planetary masses the standard type-I migration rates are so fast that this may result in an unrealistic loss of planets into the stars. We investigate the planet-disk interaction in non-isothermal disks and analyze the magnitude and direction of migration for an extended range of planet masses. We have performed detailed two-dimensional numerical simulations of embedded planets including heating/cooling effects as well as radiative diffusion for realistic opacities.\n  In radiative disks, small planets with M_planet","authors_text":"Aurelien Crida (Universiy of Tuebingen), Wilhelm Kley","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-18T13:18:14Z","title":"Migration of Protoplanets in Radiative Disks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0806.2990","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:d11dc69dada86d7a49853b34cb0ed41bc1097860e9d08b30fdab1797f152145e","target":"record","created_at":"2026-05-18T02:15:51Z","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":"5a19302e6cd682cea92ac9992fb0651f2b4cb76f176a552084583c366d9fa447","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-18T13:18:14Z","title_canon_sha256":"4d1fbd59e337643fb5c8077bd6cadebd286013d60b001e64d95bb1621825d644"},"schema_version":"1.0","source":{"id":"0806.2990","kind":"arxiv","version":1}},"canonical_sha256":"38172b798a11fac0dd6f6c700d844e8861acb0073768027bc02b7d6e91744047","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"38172b798a11fac0dd6f6c700d844e8861acb0073768027bc02b7d6e91744047","first_computed_at":"2026-05-18T02:15:51.389358Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:15:51.389358Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aAuMbcryZ8E9T0Oy8c1EmGMxfh+QQD/6YOkPae6/OPAXEPrxHCPzwWXwQPdnhZOhA3ECFyQi/q1PJTuobrp9CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:15:51.389787Z","signed_message":"canonical_sha256_bytes"},"source_id":"0806.2990","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d11dc69dada86d7a49853b34cb0ed41bc1097860e9d08b30fdab1797f152145e","sha256:17fe9fe8b1b653d2e782e7035e987d071f0dff2a898c222355e3b1f65e748ee4"],"state_sha256":"fbb1882a623dd00fc4f0748ff949a2b5e0c7806ff4e26e719a815122a2a71d14"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YtYnqm30WHE5L7Hi560xV4aBFzp3XSiVXClRehRNxlk4pAHgFVNALeMBZ6CLmBrXExHU+iOPg7R/kbpsmBtFBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T23:31:07.827987Z","bundle_sha256":"7591e7f5b28925fc6b9db4cbf4f711ab3176e2e9911ab0d1e2465274a646ca2b"}}