{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:Y44AR3FNHSODO5NJYONVS3D6XT","short_pith_number":"pith:Y44AR3FN","canonical_record":{"source":{"id":"1511.07507","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-11-23T23:40:31Z","cross_cats_sorted":[],"title_canon_sha256":"37417ef24b726726bffd6f177c71fdd7b741b6c04fd2326e262ab01535695097","abstract_canon_sha256":"4b7e2cbc88164792053cec2e5d710cc1f7f92ca3837f84f470a5cd5da9049ec9"},"schema_version":"1.0"},"canonical_sha256":"c73808ecad3c9c3775a9c39b596c7ebcf353613957b13541ea785549b170be62","source":{"kind":"arxiv","id":"1511.07507","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.07507","created_at":"2026-05-18T01:18:30Z"},{"alias_kind":"arxiv_version","alias_value":"1511.07507v2","created_at":"2026-05-18T01:18:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.07507","created_at":"2026-05-18T01:18:30Z"},{"alias_kind":"pith_short_12","alias_value":"Y44AR3FNHSOD","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"Y44AR3FNHSODO5NJ","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"Y44AR3FN","created_at":"2026-05-18T12:29:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:Y44AR3FNHSODO5NJYONVS3D6XT","target":"record","payload":{"canonical_record":{"source":{"id":"1511.07507","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-11-23T23:40:31Z","cross_cats_sorted":[],"title_canon_sha256":"37417ef24b726726bffd6f177c71fdd7b741b6c04fd2326e262ab01535695097","abstract_canon_sha256":"4b7e2cbc88164792053cec2e5d710cc1f7f92ca3837f84f470a5cd5da9049ec9"},"schema_version":"1.0"},"canonical_sha256":"c73808ecad3c9c3775a9c39b596c7ebcf353613957b13541ea785549b170be62","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:18:30.551443Z","signature_b64":"z/lqrIy8FrDwgh6pa0o/X6bYxfH7nJoh7JJGGGEa8uLIBUZTf79EQkVT/IEe2V2OKkTp1UOj/UTtmTDrGPIlAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c73808ecad3c9c3775a9c39b596c7ebcf353613957b13541ea785549b170be62","last_reissued_at":"2026-05-18T01:18:30.550805Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:18:30.550805Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.07507","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:18:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kduheJ9/gPbsOc/GaJZYc1pl1W+RFg4FrnzebJftLCPuw93FJ78/t0PPIH7zwKUMkWDU+rN4K70lLjpeVAlSCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T15:42:55.122814Z"},"content_sha256":"dbc9ac71ba253a80f863577ba64b7407fa0c0aa8e3d324b51a487eaefd9fbc4a","schema_version":"1.0","event_id":"sha256:dbc9ac71ba253a80f863577ba64b7407fa0c0aa8e3d324b51a487eaefd9fbc4a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:Y44AR3FNHSODO5NJYONVS3D6XT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Helical edge states and topological phase transitions in phononic systems using bi-layered lattices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Marshall Schaeffer, Massimo Ruzzene, Raj Kumar Pal","submitted_at":"2015-11-23T23:40:31Z","abstract_excerpt":"We propose a framework to realize helical edge states in phononic systems using two identical lattices with interlayer couplings between them. A methodology is presented to systematically transform a quantum mechanical lattice which exhibits edge states to a phononic lattice, thereby developing a family of lattices with edge states. Parameter spaces with topological phase boundaries in the vicinity of the transformed system are illustrated to demonstrate the robustness to mechanical imperfections. A potential realization in terms of fundamental mechanical building blocks is presented for the h"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.07507","kind":"arxiv","version":2},"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":"2026-05-18T01:18:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mJ2nmpu2GPlGC4Wccj2GbCpEh02X39J9cAeWldhitHX/YdtfqrQjC5N9BZIeKomDaeT7D/yktbEvMIfN1mKxCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T15:42:55.123560Z"},"content_sha256":"59f7bde620e7bbb3bf3622d996e7d00dcbfb2c747bbe68fd7da1bba7dd4afa0a","schema_version":"1.0","event_id":"sha256:59f7bde620e7bbb3bf3622d996e7d00dcbfb2c747bbe68fd7da1bba7dd4afa0a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y44AR3FNHSODO5NJYONVS3D6XT/bundle.json","state_url":"https://pith.science/pith/Y44AR3FNHSODO5NJYONVS3D6XT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y44AR3FNHSODO5NJYONVS3D6XT/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":"2026-05-29T15:42:55Z","links":{"resolver":"https://pith.science/pith/Y44AR3FNHSODO5NJYONVS3D6XT","bundle":"https://pith.science/pith/Y44AR3FNHSODO5NJYONVS3D6XT/bundle.json","state":"https://pith.science/pith/Y44AR3FNHSODO5NJYONVS3D6XT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y44AR3FNHSODO5NJYONVS3D6XT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:Y44AR3FNHSODO5NJYONVS3D6XT","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":"4b7e2cbc88164792053cec2e5d710cc1f7f92ca3837f84f470a5cd5da9049ec9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-11-23T23:40:31Z","title_canon_sha256":"37417ef24b726726bffd6f177c71fdd7b741b6c04fd2326e262ab01535695097"},"schema_version":"1.0","source":{"id":"1511.07507","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.07507","created_at":"2026-05-18T01:18:30Z"},{"alias_kind":"arxiv_version","alias_value":"1511.07507v2","created_at":"2026-05-18T01:18:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.07507","created_at":"2026-05-18T01:18:30Z"},{"alias_kind":"pith_short_12","alias_value":"Y44AR3FNHSOD","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"Y44AR3FNHSODO5NJ","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"Y44AR3FN","created_at":"2026-05-18T12:29:50Z"}],"graph_snapshots":[{"event_id":"sha256:59f7bde620e7bbb3bf3622d996e7d00dcbfb2c747bbe68fd7da1bba7dd4afa0a","target":"graph","created_at":"2026-05-18T01:18:30Z","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 propose a framework to realize helical edge states in phononic systems using two identical lattices with interlayer couplings between them. A methodology is presented to systematically transform a quantum mechanical lattice which exhibits edge states to a phononic lattice, thereby developing a family of lattices with edge states. Parameter spaces with topological phase boundaries in the vicinity of the transformed system are illustrated to demonstrate the robustness to mechanical imperfections. A potential realization in terms of fundamental mechanical building blocks is presented for the h","authors_text":"Marshall Schaeffer, Massimo Ruzzene, Raj Kumar Pal","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-11-23T23:40:31Z","title":"Helical edge states and topological phase transitions in phononic systems using bi-layered lattices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.07507","kind":"arxiv","version":2},"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:dbc9ac71ba253a80f863577ba64b7407fa0c0aa8e3d324b51a487eaefd9fbc4a","target":"record","created_at":"2026-05-18T01:18:30Z","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":"4b7e2cbc88164792053cec2e5d710cc1f7f92ca3837f84f470a5cd5da9049ec9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-11-23T23:40:31Z","title_canon_sha256":"37417ef24b726726bffd6f177c71fdd7b741b6c04fd2326e262ab01535695097"},"schema_version":"1.0","source":{"id":"1511.07507","kind":"arxiv","version":2}},"canonical_sha256":"c73808ecad3c9c3775a9c39b596c7ebcf353613957b13541ea785549b170be62","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c73808ecad3c9c3775a9c39b596c7ebcf353613957b13541ea785549b170be62","first_computed_at":"2026-05-18T01:18:30.550805Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:18:30.550805Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"z/lqrIy8FrDwgh6pa0o/X6bYxfH7nJoh7JJGGGEa8uLIBUZTf79EQkVT/IEe2V2OKkTp1UOj/UTtmTDrGPIlAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:18:30.551443Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.07507","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dbc9ac71ba253a80f863577ba64b7407fa0c0aa8e3d324b51a487eaefd9fbc4a","sha256:59f7bde620e7bbb3bf3622d996e7d00dcbfb2c747bbe68fd7da1bba7dd4afa0a"],"state_sha256":"ad3f78f5284d57fc8e5c02c13519434c471398d1485eb1e25b6f93c3d1037e6a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9tE8sLUjm6yYmv1M4pMrAChY1TLUxO06E0eFSawla27OVeEJt+CbWcQSe1BJTKdqvj/bUYyLZci+xzKtQorbAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T15:42:55.127355Z","bundle_sha256":"b3fa690c7c301b3f4dadae4608d35ceccb3992e6301c8613cd39618e0faa82b6"}}