{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:FG3KV2XEFWIB6AZM2PODI5HMRA","short_pith_number":"pith:FG3KV2XE","canonical_record":{"source":{"id":"1611.01538","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-11-04T21:06:20Z","cross_cats_sorted":[],"title_canon_sha256":"a91c04e6a70beec1198285bf8ac2d7b06a2ef7252d725e405c69a0a3e9609008","abstract_canon_sha256":"cb3b0f0d52bf7d6daa83bfeb238b230766abab7bacb767a9d7cad68d6c631a57"},"schema_version":"1.0"},"canonical_sha256":"29b6aaeae42d901f032cd3dc3474ec8825decd5bbc16801dfb3858cab791eb85","source":{"kind":"arxiv","id":"1611.01538","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.01538","created_at":"2026-05-18T00:54:16Z"},{"alias_kind":"arxiv_version","alias_value":"1611.01538v1","created_at":"2026-05-18T00:54:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.01538","created_at":"2026-05-18T00:54:16Z"},{"alias_kind":"pith_short_12","alias_value":"FG3KV2XEFWIB","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"FG3KV2XEFWIB6AZM","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"FG3KV2XE","created_at":"2026-05-18T12:30:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:FG3KV2XEFWIB6AZM2PODI5HMRA","target":"record","payload":{"canonical_record":{"source":{"id":"1611.01538","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-11-04T21:06:20Z","cross_cats_sorted":[],"title_canon_sha256":"a91c04e6a70beec1198285bf8ac2d7b06a2ef7252d725e405c69a0a3e9609008","abstract_canon_sha256":"cb3b0f0d52bf7d6daa83bfeb238b230766abab7bacb767a9d7cad68d6c631a57"},"schema_version":"1.0"},"canonical_sha256":"29b6aaeae42d901f032cd3dc3474ec8825decd5bbc16801dfb3858cab791eb85","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:54:16.297073Z","signature_b64":"pqMkUJ7ZFp5l8ey4G123pZC9ZQZuPGBxEDRAYTNkUKeWfgCDbxFaIzVpOi8zMZnZC3rVz2QL/EbRq0GNhxduBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"29b6aaeae42d901f032cd3dc3474ec8825decd5bbc16801dfb3858cab791eb85","last_reissued_at":"2026-05-18T00:54:16.296548Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:54:16.296548Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1611.01538","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":"2026-05-18T00:54:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w4tkB2od02WM2w3D/wg/GmQ8vT2t4JXrdv9GgfXY8xFsbUPlDh2YLJu+KKTfgTonKgId0764OJuDj+4E4EN2DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T22:48:46.032297Z"},"content_sha256":"2af27cba90e1b91620d2d9b43f7057d84c5a835ff201de0779d20127f8435d27","schema_version":"1.0","event_id":"sha256:2af27cba90e1b91620d2d9b43f7057d84c5a835ff201de0779d20127f8435d27"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:FG3KV2XEFWIB6AZM2PODI5HMRA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"FU Orionis outbursts, preferential recondensation of water ice, and the formation of giant planets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Alexander Hubbard","submitted_at":"2016-11-04T21:06:20Z","abstract_excerpt":"Ices, including water ice, prefer to recondense onto pre-existing nuclei rather than spontaneously forming grains from a cloud of vapor. Interestingly, different potential recondensation nuclei have very different propensities to actually nucleate water ice at the temperatures associated with freeze-out in protoplanetary discs. Therefore, if a region in a disc is warmed and then recooled, water vapor should not be expected to refreeze evenly onto all available grains. Instead it will preferentially recondense onto the most favorable grains. When the recooling is slow enough, only the most favo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.01538","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":"2026-05-18T00:54:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VLDL95xuOmCzDLeR9+wUrL6V5VQ+x6jMoGUIOxu5q0GxCHn3z58NkYnPkrBn5wVFZeQB2s38Lr5eQcH7CFK3Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T22:48:46.032718Z"},"content_sha256":"8a6e17a00da5d2b06d220260207157fc3c344616e5043f4bd8a6945029344c08","schema_version":"1.0","event_id":"sha256:8a6e17a00da5d2b06d220260207157fc3c344616e5043f4bd8a6945029344c08"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FG3KV2XEFWIB6AZM2PODI5HMRA/bundle.json","state_url":"https://pith.science/pith/FG3KV2XEFWIB6AZM2PODI5HMRA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FG3KV2XEFWIB6AZM2PODI5HMRA/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":"2026-05-29T22:48:46Z","links":{"resolver":"https://pith.science/pith/FG3KV2XEFWIB6AZM2PODI5HMRA","bundle":"https://pith.science/pith/FG3KV2XEFWIB6AZM2PODI5HMRA/bundle.json","state":"https://pith.science/pith/FG3KV2XEFWIB6AZM2PODI5HMRA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FG3KV2XEFWIB6AZM2PODI5HMRA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:FG3KV2XEFWIB6AZM2PODI5HMRA","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":"cb3b0f0d52bf7d6daa83bfeb238b230766abab7bacb767a9d7cad68d6c631a57","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-11-04T21:06:20Z","title_canon_sha256":"a91c04e6a70beec1198285bf8ac2d7b06a2ef7252d725e405c69a0a3e9609008"},"schema_version":"1.0","source":{"id":"1611.01538","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.01538","created_at":"2026-05-18T00:54:16Z"},{"alias_kind":"arxiv_version","alias_value":"1611.01538v1","created_at":"2026-05-18T00:54:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.01538","created_at":"2026-05-18T00:54:16Z"},{"alias_kind":"pith_short_12","alias_value":"FG3KV2XEFWIB","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"FG3KV2XEFWIB6AZM","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"FG3KV2XE","created_at":"2026-05-18T12:30:15Z"}],"graph_snapshots":[{"event_id":"sha256:8a6e17a00da5d2b06d220260207157fc3c344616e5043f4bd8a6945029344c08","target":"graph","created_at":"2026-05-18T00:54:16Z","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":"Ices, including water ice, prefer to recondense onto pre-existing nuclei rather than spontaneously forming grains from a cloud of vapor. Interestingly, different potential recondensation nuclei have very different propensities to actually nucleate water ice at the temperatures associated with freeze-out in protoplanetary discs. Therefore, if a region in a disc is warmed and then recooled, water vapor should not be expected to refreeze evenly onto all available grains. Instead it will preferentially recondense onto the most favorable grains. When the recooling is slow enough, only the most favo","authors_text":"Alexander Hubbard","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-11-04T21:06:20Z","title":"FU Orionis outbursts, preferential recondensation of water ice, and the formation of giant planets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.01538","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":"sha256:2af27cba90e1b91620d2d9b43f7057d84c5a835ff201de0779d20127f8435d27","target":"record","created_at":"2026-05-18T00:54:16Z","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":"cb3b0f0d52bf7d6daa83bfeb238b230766abab7bacb767a9d7cad68d6c631a57","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-11-04T21:06:20Z","title_canon_sha256":"a91c04e6a70beec1198285bf8ac2d7b06a2ef7252d725e405c69a0a3e9609008"},"schema_version":"1.0","source":{"id":"1611.01538","kind":"arxiv","version":1}},"canonical_sha256":"29b6aaeae42d901f032cd3dc3474ec8825decd5bbc16801dfb3858cab791eb85","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"29b6aaeae42d901f032cd3dc3474ec8825decd5bbc16801dfb3858cab791eb85","first_computed_at":"2026-05-18T00:54:16.296548Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:54:16.296548Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pqMkUJ7ZFp5l8ey4G123pZC9ZQZuPGBxEDRAYTNkUKeWfgCDbxFaIzVpOi8zMZnZC3rVz2QL/EbRq0GNhxduBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:54:16.297073Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.01538","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2af27cba90e1b91620d2d9b43f7057d84c5a835ff201de0779d20127f8435d27","sha256:8a6e17a00da5d2b06d220260207157fc3c344616e5043f4bd8a6945029344c08"],"state_sha256":"4f404193f537175db8feb40d07852c0bc5ef68e7c83aa8e615fcecd7c6d4a226"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ysk3tbRqtjECpjS8xUH5nF+TUP2NRYeVeBDc4YPDAlbLXgA9sDUWJ4HLkr81mUhRmZxdHIKKa/Q61sQGlyHiCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T22:48:46.035717Z","bundle_sha256":"f2e578c5c84a43b633ed033ff9d564d7f11ee9c21ea12f346f6ed46a9a1010de"}}