{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:D4VJI44LKXGEILPW5EKZM7YOHY","short_pith_number":"pith:D4VJI44L","canonical_record":{"source":{"id":"1607.04321","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-07-14T21:07:59Z","cross_cats_sorted":[],"title_canon_sha256":"18dd01f96743d69ab90fcf3a8cb4af4e8d16b37788f4f43bc7dcc0e772c09759","abstract_canon_sha256":"deb5b32955dbcc21e525fdca7ce10f90f2b032c099b5e85e1e161d79f5fba660"},"schema_version":"1.0"},"canonical_sha256":"1f2a94738b55cc442df6e915967f0e3e2532d90c2899322e7e5f62c492e2175b","source":{"kind":"arxiv","id":"1607.04321","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.04321","created_at":"2026-05-18T00:36:03Z"},{"alias_kind":"arxiv_version","alias_value":"1607.04321v1","created_at":"2026-05-18T00:36:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.04321","created_at":"2026-05-18T00:36:03Z"},{"alias_kind":"pith_short_12","alias_value":"D4VJI44LKXGE","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"D4VJI44LKXGEILPW","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"D4VJI44L","created_at":"2026-05-18T12:30:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:D4VJI44LKXGEILPW5EKZM7YOHY","target":"record","payload":{"canonical_record":{"source":{"id":"1607.04321","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-07-14T21:07:59Z","cross_cats_sorted":[],"title_canon_sha256":"18dd01f96743d69ab90fcf3a8cb4af4e8d16b37788f4f43bc7dcc0e772c09759","abstract_canon_sha256":"deb5b32955dbcc21e525fdca7ce10f90f2b032c099b5e85e1e161d79f5fba660"},"schema_version":"1.0"},"canonical_sha256":"1f2a94738b55cc442df6e915967f0e3e2532d90c2899322e7e5f62c492e2175b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:36:03.954173Z","signature_b64":"34PhgUnk5Edk7mwK8ibYDF24a9VnBBa7wEieRqddc1sMhRqzkENMSM4pOIh1g2nurkln2hiW94XuVKH40MMhDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1f2a94738b55cc442df6e915967f0e3e2532d90c2899322e7e5f62c492e2175b","last_reissued_at":"2026-05-18T00:36:03.953596Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:36:03.953596Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1607.04321","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":"2026-05-18T00:36:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PxJ9vq5OwZj4F9+XExJMykvBk94umd9ve+DF0EgodtJvVNjcs7eQmXb292j2BpRCctCq3mgcYlx5MY9ocKlNCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T17:27:37.362846Z"},"content_sha256":"7475de69210bdc0d952b10fe598e291f8b6efce5639e7d027468e8285e47112b","schema_version":"1.0","event_id":"sha256:7475de69210bdc0d952b10fe598e291f8b6efce5639e7d027468e8285e47112b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:D4VJI44LKXGEILPW5EKZM7YOHY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pseudomagnetic fields for sound at the nanoscale","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Christian Brendel, Florian Marquardt, Oskar Painter, Vittorio Peano","submitted_at":"2016-07-14T21:07:59Z","abstract_excerpt":"There is a growing effort in creating chiral transport of sound waves. However, most approaches so far are confined to the macroscopic scale. Here, we propose a new approach suitable to the nanoscale which is based on pseudomagnetic fields. These fields are the analogon for sound of the pseudomagnetic field for electrons in strained graphene. In our proposal, they are created by simple geometrical modifications of an existing and experimentally proven phononic crystal design, the snowflake crystal. This platform is robust, scalable, and well-suited for a variety of excitation and readout mecha"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.04321","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":"2026-05-18T00:36:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"344IeU/d95ajug3g60h+wBgE3v4WNlrpw3IC6/qYGYZxak+OpDhLJjUjL5Ov0mLfc8uKYvvZhWexaY7HiZGsDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T17:27:37.363531Z"},"content_sha256":"49266ae38a7e1e30ec89deead4d1382ce7e40d5a4bc96e1c9677898e1ab921ed","schema_version":"1.0","event_id":"sha256:49266ae38a7e1e30ec89deead4d1382ce7e40d5a4bc96e1c9677898e1ab921ed"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D4VJI44LKXGEILPW5EKZM7YOHY/bundle.json","state_url":"https://pith.science/pith/D4VJI44LKXGEILPW5EKZM7YOHY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D4VJI44LKXGEILPW5EKZM7YOHY/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":"2026-06-06T17:27:37Z","links":{"resolver":"https://pith.science/pith/D4VJI44LKXGEILPW5EKZM7YOHY","bundle":"https://pith.science/pith/D4VJI44LKXGEILPW5EKZM7YOHY/bundle.json","state":"https://pith.science/pith/D4VJI44LKXGEILPW5EKZM7YOHY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D4VJI44LKXGEILPW5EKZM7YOHY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:D4VJI44LKXGEILPW5EKZM7YOHY","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":"deb5b32955dbcc21e525fdca7ce10f90f2b032c099b5e85e1e161d79f5fba660","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-07-14T21:07:59Z","title_canon_sha256":"18dd01f96743d69ab90fcf3a8cb4af4e8d16b37788f4f43bc7dcc0e772c09759"},"schema_version":"1.0","source":{"id":"1607.04321","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.04321","created_at":"2026-05-18T00:36:03Z"},{"alias_kind":"arxiv_version","alias_value":"1607.04321v1","created_at":"2026-05-18T00:36:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.04321","created_at":"2026-05-18T00:36:03Z"},{"alias_kind":"pith_short_12","alias_value":"D4VJI44LKXGE","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"D4VJI44LKXGEILPW","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"D4VJI44L","created_at":"2026-05-18T12:30:09Z"}],"graph_snapshots":[{"event_id":"sha256:49266ae38a7e1e30ec89deead4d1382ce7e40d5a4bc96e1c9677898e1ab921ed","target":"graph","created_at":"2026-05-18T00:36:03Z","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":"There is a growing effort in creating chiral transport of sound waves. However, most approaches so far are confined to the macroscopic scale. Here, we propose a new approach suitable to the nanoscale which is based on pseudomagnetic fields. These fields are the analogon for sound of the pseudomagnetic field for electrons in strained graphene. In our proposal, they are created by simple geometrical modifications of an existing and experimentally proven phononic crystal design, the snowflake crystal. This platform is robust, scalable, and well-suited for a variety of excitation and readout mecha","authors_text":"Christian Brendel, Florian Marquardt, Oskar Painter, Vittorio Peano","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-07-14T21:07:59Z","title":"Pseudomagnetic fields for sound at the nanoscale"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.04321","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":"sha256:7475de69210bdc0d952b10fe598e291f8b6efce5639e7d027468e8285e47112b","target":"record","created_at":"2026-05-18T00:36:03Z","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":"deb5b32955dbcc21e525fdca7ce10f90f2b032c099b5e85e1e161d79f5fba660","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-07-14T21:07:59Z","title_canon_sha256":"18dd01f96743d69ab90fcf3a8cb4af4e8d16b37788f4f43bc7dcc0e772c09759"},"schema_version":"1.0","source":{"id":"1607.04321","kind":"arxiv","version":1}},"canonical_sha256":"1f2a94738b55cc442df6e915967f0e3e2532d90c2899322e7e5f62c492e2175b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1f2a94738b55cc442df6e915967f0e3e2532d90c2899322e7e5f62c492e2175b","first_computed_at":"2026-05-18T00:36:03.953596Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:03.953596Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"34PhgUnk5Edk7mwK8ibYDF24a9VnBBa7wEieRqddc1sMhRqzkENMSM4pOIh1g2nurkln2hiW94XuVKH40MMhDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:03.954173Z","signed_message":"canonical_sha256_bytes"},"source_id":"1607.04321","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7475de69210bdc0d952b10fe598e291f8b6efce5639e7d027468e8285e47112b","sha256:49266ae38a7e1e30ec89deead4d1382ce7e40d5a4bc96e1c9677898e1ab921ed"],"state_sha256":"8f499bd82fe57aca9b9be3ae56ce3f95b481de5104a6d2f64744ff60bd39ea48"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1Iycvn9HQYs6v9cPyu0NQVBZDnUEE8AHGJMtvhokksKAF3/6GNc6AXuWr57PywCbdxMcC1EQNFMam+zuUkbYBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T17:27:37.367903Z","bundle_sha256":"c13c87bcb74547b15bc91f0bc9c5a5924380fee90979ac32df61c2e5578c7920"}}