{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:VQPM5VHJ6HSUZHFCSPIEN7OXVR","short_pith_number":"pith:VQPM5VHJ","canonical_record":{"source":{"id":"1204.5667","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DS","submitted_at":"2012-04-25T14:20:33Z","cross_cats_sorted":[],"title_canon_sha256":"19abae3a35a874c1387246e622a0da71691e63f1424ccde8c174535bf157f7c5","abstract_canon_sha256":"79d3dfa59146c911fb272e61f2d001de78b0bd153ad87d10970e1a5215bc6130"},"schema_version":"1.0"},"canonical_sha256":"ac1eced4e9f1e54c9ca293d046fdd7ac60848f05f7b824011ed654500e60931d","source":{"kind":"arxiv","id":"1204.5667","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5667","created_at":"2026-05-18T01:57:44Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5667v1","created_at":"2026-05-18T01:57:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5667","created_at":"2026-05-18T01:57:44Z"},{"alias_kind":"pith_short_12","alias_value":"VQPM5VHJ6HSU","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"VQPM5VHJ6HSUZHFC","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"VQPM5VHJ","created_at":"2026-05-18T12:27:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:VQPM5VHJ6HSUZHFCSPIEN7OXVR","target":"record","payload":{"canonical_record":{"source":{"id":"1204.5667","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DS","submitted_at":"2012-04-25T14:20:33Z","cross_cats_sorted":[],"title_canon_sha256":"19abae3a35a874c1387246e622a0da71691e63f1424ccde8c174535bf157f7c5","abstract_canon_sha256":"79d3dfa59146c911fb272e61f2d001de78b0bd153ad87d10970e1a5215bc6130"},"schema_version":"1.0"},"canonical_sha256":"ac1eced4e9f1e54c9ca293d046fdd7ac60848f05f7b824011ed654500e60931d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:57:44.365941Z","signature_b64":"dpOVydogn3l8mJr/X8u8VmRqeqGGl+V4efHK/UTi5Wg+xy52BAqGoiigDlvo/6Ru68jTY+LFLNkJxZTIMfsiCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ac1eced4e9f1e54c9ca293d046fdd7ac60848f05f7b824011ed654500e60931d","last_reissued_at":"2026-05-18T01:57:44.365243Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:57:44.365243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.5667","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":"2026-05-18T01:57:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LG1bsa4aOVnUZ91iFgBovns5DdclIA5ERpdvW64D6dNSypjxRqtoyc0wUNMd7QuF0yAOIAqaFx0n8cw25KCWDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T09:41:59.671566Z"},"content_sha256":"c5265eb3dc2c89e69c8e1d62b6828438e548160502c2dcd84548f04ced918c38","schema_version":"1.0","event_id":"sha256:c5265eb3dc2c89e69c8e1d62b6828438e548160502c2dcd84548f04ced918c38"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:VQPM5VHJ6HSUZHFCSPIEN7OXVR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fermi Acceleration in anti-integrable limits of the standard map","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.DS","authors_text":"Jacopo De Simoi","submitted_at":"2012-04-25T14:20:33Z","abstract_excerpt":"We consider a dynamical system on the semi-infinite cylinder which models the high energy dynamics of a family of mechanical models. We provide conditions under which we ensure that the set of orbits undergoing Fermi acceleration has measure zero."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5667","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":"2026-05-18T01:57:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c17O//xak+QF+foLVdl+19cOJ5hTb/DxAje95yBrhXk3DBAs2tIxKxlr+RQEVGcQ6ar78BHXu2DYuo2sUYh/CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T09:41:59.671914Z"},"content_sha256":"6adee6b1cfd6acb5864ca8adbcfa9211991ca0b236b22eb64d7dd6e314e37197","schema_version":"1.0","event_id":"sha256:6adee6b1cfd6acb5864ca8adbcfa9211991ca0b236b22eb64d7dd6e314e37197"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VQPM5VHJ6HSUZHFCSPIEN7OXVR/bundle.json","state_url":"https://pith.science/pith/VQPM5VHJ6HSUZHFCSPIEN7OXVR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VQPM5VHJ6HSUZHFCSPIEN7OXVR/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":"2026-06-11T09:41:59Z","links":{"resolver":"https://pith.science/pith/VQPM5VHJ6HSUZHFCSPIEN7OXVR","bundle":"https://pith.science/pith/VQPM5VHJ6HSUZHFCSPIEN7OXVR/bundle.json","state":"https://pith.science/pith/VQPM5VHJ6HSUZHFCSPIEN7OXVR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VQPM5VHJ6HSUZHFCSPIEN7OXVR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:VQPM5VHJ6HSUZHFCSPIEN7OXVR","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":"79d3dfa59146c911fb272e61f2d001de78b0bd153ad87d10970e1a5215bc6130","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DS","submitted_at":"2012-04-25T14:20:33Z","title_canon_sha256":"19abae3a35a874c1387246e622a0da71691e63f1424ccde8c174535bf157f7c5"},"schema_version":"1.0","source":{"id":"1204.5667","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5667","created_at":"2026-05-18T01:57:44Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5667v1","created_at":"2026-05-18T01:57:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5667","created_at":"2026-05-18T01:57:44Z"},{"alias_kind":"pith_short_12","alias_value":"VQPM5VHJ6HSU","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"VQPM5VHJ6HSUZHFC","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"VQPM5VHJ","created_at":"2026-05-18T12:27:25Z"}],"graph_snapshots":[{"event_id":"sha256:6adee6b1cfd6acb5864ca8adbcfa9211991ca0b236b22eb64d7dd6e314e37197","target":"graph","created_at":"2026-05-18T01:57:44Z","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 consider a dynamical system on the semi-infinite cylinder which models the high energy dynamics of a family of mechanical models. We provide conditions under which we ensure that the set of orbits undergoing Fermi acceleration has measure zero.","authors_text":"Jacopo De Simoi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DS","submitted_at":"2012-04-25T14:20:33Z","title":"Fermi Acceleration in anti-integrable limits of the standard map"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5667","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:c5265eb3dc2c89e69c8e1d62b6828438e548160502c2dcd84548f04ced918c38","target":"record","created_at":"2026-05-18T01:57:44Z","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":"79d3dfa59146c911fb272e61f2d001de78b0bd153ad87d10970e1a5215bc6130","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DS","submitted_at":"2012-04-25T14:20:33Z","title_canon_sha256":"19abae3a35a874c1387246e622a0da71691e63f1424ccde8c174535bf157f7c5"},"schema_version":"1.0","source":{"id":"1204.5667","kind":"arxiv","version":1}},"canonical_sha256":"ac1eced4e9f1e54c9ca293d046fdd7ac60848f05f7b824011ed654500e60931d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ac1eced4e9f1e54c9ca293d046fdd7ac60848f05f7b824011ed654500e60931d","first_computed_at":"2026-05-18T01:57:44.365243Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:57:44.365243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dpOVydogn3l8mJr/X8u8VmRqeqGGl+V4efHK/UTi5Wg+xy52BAqGoiigDlvo/6Ru68jTY+LFLNkJxZTIMfsiCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:57:44.365941Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.5667","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c5265eb3dc2c89e69c8e1d62b6828438e548160502c2dcd84548f04ced918c38","sha256:6adee6b1cfd6acb5864ca8adbcfa9211991ca0b236b22eb64d7dd6e314e37197"],"state_sha256":"6e5e603e7bbf1757e4524a279944ed770427ac753e4e1eb3017a25d96b7e32c1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OrdxNA4qfje1zFkIO/KqEwcdmWYlMeJu4G45CC5w2q9g8hlzf4T+qLXYWNREIxeuGWZhiJBzu1R6yTdS/OYUCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T09:41:59.673723Z","bundle_sha256":"7cce0b06556a0635303b6004ae0000cf1c3963b5b69b580211bfb10396928154"}}