{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:TIU234KVU3EXQC7UTOMHC6FA2R","short_pith_number":"pith:TIU234KV","canonical_record":{"source":{"id":"1203.0314","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-03-01T21:11:41Z","cross_cats_sorted":[],"title_canon_sha256":"1ceebf9f06e0f867212dacf1a00844a177c7fda1c7bd0922f7bcb934a5b1917c","abstract_canon_sha256":"fe62cfc3e2f96f37f18d5e56ce3921cd8029b3abd76a08eedd95d95723de4dd0"},"schema_version":"1.0"},"canonical_sha256":"9a29adf155a6c9780bf49b987178a0d47fd3b234aa50f4d29c60d0f862bef7f9","source":{"kind":"arxiv","id":"1203.0314","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.0314","created_at":"2026-05-18T01:58:15Z"},{"alias_kind":"arxiv_version","alias_value":"1203.0314v1","created_at":"2026-05-18T01:58:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.0314","created_at":"2026-05-18T01:58:15Z"},{"alias_kind":"pith_short_12","alias_value":"TIU234KVU3EX","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"TIU234KVU3EXQC7U","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"TIU234KV","created_at":"2026-05-18T12:27:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:TIU234KVU3EXQC7UTOMHC6FA2R","target":"record","payload":{"canonical_record":{"source":{"id":"1203.0314","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-03-01T21:11:41Z","cross_cats_sorted":[],"title_canon_sha256":"1ceebf9f06e0f867212dacf1a00844a177c7fda1c7bd0922f7bcb934a5b1917c","abstract_canon_sha256":"fe62cfc3e2f96f37f18d5e56ce3921cd8029b3abd76a08eedd95d95723de4dd0"},"schema_version":"1.0"},"canonical_sha256":"9a29adf155a6c9780bf49b987178a0d47fd3b234aa50f4d29c60d0f862bef7f9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:15.888788Z","signature_b64":"vAG4f8zvB6Srdw++1EyD6EWGZX5dq3tS+aPGnL5CXk1qEgva9dQKr9fO7goadyg5ylFbHCohgn1zC73r1iquCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9a29adf155a6c9780bf49b987178a0d47fd3b234aa50f4d29c60d0f862bef7f9","last_reissued_at":"2026-05-18T01:58:15.888070Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:15.888070Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1203.0314","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":"2026-05-18T01:58:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kBp4DZiTIe0vn/ZDLf65q/TrddKjxwF4mbI9kQIVROK+OHiF0gOtAuKRXMgegeNwjBglRTDWV5zYViDKSQkWDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T15:55:45.909476Z"},"content_sha256":"4f6e3760c9994e27de7134bfc4992287423e723c15df1809ec4eb92584fbf47d","schema_version":"1.0","event_id":"sha256:4f6e3760c9994e27de7134bfc4992287423e723c15df1809ec4eb92584fbf47d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:TIU234KVU3EXQC7UTOMHC6FA2R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Emergent Mesoscale Phenomena in Magnetized Accretion Disc Turbulence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Jacob B. Simon, Kris Beckwith, Philip J. Armitage","submitted_at":"2012-03-01T21:11:41Z","abstract_excerpt":"We study how the structure and variability of magnetohydrodynamic (MHD) turbulence in accretion discs converge with domain size. Our results are based on a series of vertically stratified local simulations, computed using the Athena code, that have fixed spatial resolution, but varying radial and azimuthal extent (from \\Delta R = 0.5H to 16H, where H is the vertical scale height). We show that elementary local diagnostics of the turbulence, including the Shakura-Sunyaev {\\alpha} parameter, the ratio of Maxwell stress to magnetic energy, and the ratio of magnetic to fluid stresses, converge to "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.0314","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":"2026-05-18T01:58:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/peyT6SVReVIzZpvJXHrcZbydjjw4wX+/TPdMOZNhA5Y2XZRKRmga+0RZWEfrA0EM7haTnqwRfcimrGUx4LUBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T15:55:45.909832Z"},"content_sha256":"f8151337cf62aa850b9d36a113cf4223e022b1df8b16d60ee0c9136be1306a46","schema_version":"1.0","event_id":"sha256:f8151337cf62aa850b9d36a113cf4223e022b1df8b16d60ee0c9136be1306a46"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TIU234KVU3EXQC7UTOMHC6FA2R/bundle.json","state_url":"https://pith.science/pith/TIU234KVU3EXQC7UTOMHC6FA2R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TIU234KVU3EXQC7UTOMHC6FA2R/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":"2026-06-04T15:55:45Z","links":{"resolver":"https://pith.science/pith/TIU234KVU3EXQC7UTOMHC6FA2R","bundle":"https://pith.science/pith/TIU234KVU3EXQC7UTOMHC6FA2R/bundle.json","state":"https://pith.science/pith/TIU234KVU3EXQC7UTOMHC6FA2R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TIU234KVU3EXQC7UTOMHC6FA2R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:TIU234KVU3EXQC7UTOMHC6FA2R","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":"fe62cfc3e2f96f37f18d5e56ce3921cd8029b3abd76a08eedd95d95723de4dd0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-03-01T21:11:41Z","title_canon_sha256":"1ceebf9f06e0f867212dacf1a00844a177c7fda1c7bd0922f7bcb934a5b1917c"},"schema_version":"1.0","source":{"id":"1203.0314","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.0314","created_at":"2026-05-18T01:58:15Z"},{"alias_kind":"arxiv_version","alias_value":"1203.0314v1","created_at":"2026-05-18T01:58:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.0314","created_at":"2026-05-18T01:58:15Z"},{"alias_kind":"pith_short_12","alias_value":"TIU234KVU3EX","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"TIU234KVU3EXQC7U","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"TIU234KV","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:f8151337cf62aa850b9d36a113cf4223e022b1df8b16d60ee0c9136be1306a46","target":"graph","created_at":"2026-05-18T01:58:15Z","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":"We study how the structure and variability of magnetohydrodynamic (MHD) turbulence in accretion discs converge with domain size. Our results are based on a series of vertically stratified local simulations, computed using the Athena code, that have fixed spatial resolution, but varying radial and azimuthal extent (from \\Delta R = 0.5H to 16H, where H is the vertical scale height). We show that elementary local diagnostics of the turbulence, including the Shakura-Sunyaev {\\alpha} parameter, the ratio of Maxwell stress to magnetic energy, and the ratio of magnetic to fluid stresses, converge to ","authors_text":"Jacob B. Simon, Kris Beckwith, Philip J. Armitage","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-03-01T21:11:41Z","title":"Emergent Mesoscale Phenomena in Magnetized Accretion Disc Turbulence"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.0314","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":"sha256:4f6e3760c9994e27de7134bfc4992287423e723c15df1809ec4eb92584fbf47d","target":"record","created_at":"2026-05-18T01:58:15Z","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":"fe62cfc3e2f96f37f18d5e56ce3921cd8029b3abd76a08eedd95d95723de4dd0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-03-01T21:11:41Z","title_canon_sha256":"1ceebf9f06e0f867212dacf1a00844a177c7fda1c7bd0922f7bcb934a5b1917c"},"schema_version":"1.0","source":{"id":"1203.0314","kind":"arxiv","version":1}},"canonical_sha256":"9a29adf155a6c9780bf49b987178a0d47fd3b234aa50f4d29c60d0f862bef7f9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9a29adf155a6c9780bf49b987178a0d47fd3b234aa50f4d29c60d0f862bef7f9","first_computed_at":"2026-05-18T01:58:15.888070Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:15.888070Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vAG4f8zvB6Srdw++1EyD6EWGZX5dq3tS+aPGnL5CXk1qEgva9dQKr9fO7goadyg5ylFbHCohgn1zC73r1iquCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:15.888788Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.0314","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4f6e3760c9994e27de7134bfc4992287423e723c15df1809ec4eb92584fbf47d","sha256:f8151337cf62aa850b9d36a113cf4223e022b1df8b16d60ee0c9136be1306a46"],"state_sha256":"daec7bfabd3bd33d029867c66606abe892ef0a87726f55e427e1122851facf65"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e+JuyWW4HxMaJhLXAqBFFbn8hvkzf4nxLrR0AKBSBtyzA4z2WP2meGI8Sa0+z5GzLTK3LzQsPoINGRWuEpA8AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T15:55:45.911914Z","bundle_sha256":"57f6996487f5d4a82e447ccd7919c392af04b9bf6a66196605f92ea144f0d382"}}