{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:ZNVZC3QW6AAWTPZ4IPKJFJG6MI","short_pith_number":"pith:ZNVZC3QW","canonical_record":{"source":{"id":"1502.04011","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-13T14:46:07Z","cross_cats_sorted":[],"title_canon_sha256":"3db4134f26c27ff92cf2e4efacb9c3643287006473b1bdc06200c8fc5d665bd4","abstract_canon_sha256":"2f3ebd277c6913f57bb5320fb87c30e0add7797553c2b36d643b81f888863fae"},"schema_version":"1.0"},"canonical_sha256":"cb6b916e16f00169bf3c43d492a4de6208f16db7fe23ca82913e575650aa8f64","source":{"kind":"arxiv","id":"1502.04011","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.04011","created_at":"2026-05-18T02:25:18Z"},{"alias_kind":"arxiv_version","alias_value":"1502.04011v1","created_at":"2026-05-18T02:25:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.04011","created_at":"2026-05-18T02:25:18Z"},{"alias_kind":"pith_short_12","alias_value":"ZNVZC3QW6AAW","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"ZNVZC3QW6AAWTPZ4","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"ZNVZC3QW","created_at":"2026-05-18T12:29:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:ZNVZC3QW6AAWTPZ4IPKJFJG6MI","target":"record","payload":{"canonical_record":{"source":{"id":"1502.04011","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-13T14:46:07Z","cross_cats_sorted":[],"title_canon_sha256":"3db4134f26c27ff92cf2e4efacb9c3643287006473b1bdc06200c8fc5d665bd4","abstract_canon_sha256":"2f3ebd277c6913f57bb5320fb87c30e0add7797553c2b36d643b81f888863fae"},"schema_version":"1.0"},"canonical_sha256":"cb6b916e16f00169bf3c43d492a4de6208f16db7fe23ca82913e575650aa8f64","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:25:18.119113Z","signature_b64":"LLWmtIw8cMEV5n4YFK+ppoZZjDUZ8x5sv6QMWECNQ0oVDZEd51eGq0OxoIfNMb5JKx/1C6RzXjoplPnb95CBCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cb6b916e16f00169bf3c43d492a4de6208f16db7fe23ca82913e575650aa8f64","last_reissued_at":"2026-05-18T02:25:18.118747Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:25:18.118747Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.04011","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":"2026-05-18T02:25:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HWJunAyEyOsiQTRfOQ27f1GDzYp3i+7eIPHj0WkLw9FyLNGE96gym6CKsG0ktjHqgWUWQvKuX9/P7N25C0MIAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T19:19:46.747915Z"},"content_sha256":"7b1e19fe1441ea8dc68d1eb913ad7844c85edbbf249f80b3327a22acb124c5ed","schema_version":"1.0","event_id":"sha256:7b1e19fe1441ea8dc68d1eb913ad7844c85edbbf249f80b3327a22acb124c5ed"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:ZNVZC3QW6AAWTPZ4IPKJFJG6MI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Modelling ripples in Orion with coupled dust dynamics and radiative transfer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"P. Camps, R. Keppens, T. Hendrix","submitted_at":"2015-02-13T14:46:07Z","abstract_excerpt":"In light of the recent detection of direct evidence for the formation of Kelvin-Helmholtz instabilities in the Orion nebula, we expand upon previous modelling efforts by numerically simulating the shear-flow driven gas and dust dynamics in locations where the H$_{II}$ region and the molecular cloud interact. We aim to directly confront the simulation results with the infrared observations. Methods: To numerically model the onset and full nonlinear development of the Kelvin-Helmholtz instability we take the setup proposed to interpret the observations, and adjust it to a full 3D hydrodynamical "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.04011","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":"2026-05-18T02:25:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6KjhQlMOBPjKqW5z9GAse8cSx2tWkh6Ap23X+yxPNzML5S3/0xlds2xjprPUFKEp3CFZtYtl8uG5M9LWFrr+Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T19:19:46.748257Z"},"content_sha256":"051aedd4fb15f3ce6dd2c0d9fa3301f304444bd4a08ac88f51cd26c2cdb96585","schema_version":"1.0","event_id":"sha256:051aedd4fb15f3ce6dd2c0d9fa3301f304444bd4a08ac88f51cd26c2cdb96585"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZNVZC3QW6AAWTPZ4IPKJFJG6MI/bundle.json","state_url":"https://pith.science/pith/ZNVZC3QW6AAWTPZ4IPKJFJG6MI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZNVZC3QW6AAWTPZ4IPKJFJG6MI/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":"2026-06-10T19:19:46Z","links":{"resolver":"https://pith.science/pith/ZNVZC3QW6AAWTPZ4IPKJFJG6MI","bundle":"https://pith.science/pith/ZNVZC3QW6AAWTPZ4IPKJFJG6MI/bundle.json","state":"https://pith.science/pith/ZNVZC3QW6AAWTPZ4IPKJFJG6MI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZNVZC3QW6AAWTPZ4IPKJFJG6MI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:ZNVZC3QW6AAWTPZ4IPKJFJG6MI","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":"2f3ebd277c6913f57bb5320fb87c30e0add7797553c2b36d643b81f888863fae","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-13T14:46:07Z","title_canon_sha256":"3db4134f26c27ff92cf2e4efacb9c3643287006473b1bdc06200c8fc5d665bd4"},"schema_version":"1.0","source":{"id":"1502.04011","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.04011","created_at":"2026-05-18T02:25:18Z"},{"alias_kind":"arxiv_version","alias_value":"1502.04011v1","created_at":"2026-05-18T02:25:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.04011","created_at":"2026-05-18T02:25:18Z"},{"alias_kind":"pith_short_12","alias_value":"ZNVZC3QW6AAW","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"ZNVZC3QW6AAWTPZ4","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"ZNVZC3QW","created_at":"2026-05-18T12:29:52Z"}],"graph_snapshots":[{"event_id":"sha256:051aedd4fb15f3ce6dd2c0d9fa3301f304444bd4a08ac88f51cd26c2cdb96585","target":"graph","created_at":"2026-05-18T02:25:18Z","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 light of the recent detection of direct evidence for the formation of Kelvin-Helmholtz instabilities in the Orion nebula, we expand upon previous modelling efforts by numerically simulating the shear-flow driven gas and dust dynamics in locations where the H$_{II}$ region and the molecular cloud interact. We aim to directly confront the simulation results with the infrared observations. Methods: To numerically model the onset and full nonlinear development of the Kelvin-Helmholtz instability we take the setup proposed to interpret the observations, and adjust it to a full 3D hydrodynamical ","authors_text":"P. Camps, R. Keppens, T. Hendrix","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-13T14:46:07Z","title":"Modelling ripples in Orion with coupled dust dynamics and radiative transfer"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.04011","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":"sha256:7b1e19fe1441ea8dc68d1eb913ad7844c85edbbf249f80b3327a22acb124c5ed","target":"record","created_at":"2026-05-18T02:25:18Z","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":"2f3ebd277c6913f57bb5320fb87c30e0add7797553c2b36d643b81f888863fae","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-13T14:46:07Z","title_canon_sha256":"3db4134f26c27ff92cf2e4efacb9c3643287006473b1bdc06200c8fc5d665bd4"},"schema_version":"1.0","source":{"id":"1502.04011","kind":"arxiv","version":1}},"canonical_sha256":"cb6b916e16f00169bf3c43d492a4de6208f16db7fe23ca82913e575650aa8f64","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cb6b916e16f00169bf3c43d492a4de6208f16db7fe23ca82913e575650aa8f64","first_computed_at":"2026-05-18T02:25:18.118747Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:25:18.118747Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LLWmtIw8cMEV5n4YFK+ppoZZjDUZ8x5sv6QMWECNQ0oVDZEd51eGq0OxoIfNMb5JKx/1C6RzXjoplPnb95CBCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:25:18.119113Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.04011","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7b1e19fe1441ea8dc68d1eb913ad7844c85edbbf249f80b3327a22acb124c5ed","sha256:051aedd4fb15f3ce6dd2c0d9fa3301f304444bd4a08ac88f51cd26c2cdb96585"],"state_sha256":"326a40ceded6075245e7ae5f1dc1437c9184538b67bb6344f35cda2c60b77208"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CJV/Nh4a6GeS1dZ4dvdF6guGt2sV4Wb2yc2FKPckwv858thuAz1wt8xKOLQZCaoXBQTwpsztV51aCx4/KyP5BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T19:19:46.750219Z","bundle_sha256":"f6f61cd5f3271fd61df92b64d173f38db7d903cb845016c4d95032a6fbede31a"}}