{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:6OJ24YBQZJSLSEUR42DNSI3IDT","short_pith_number":"pith:6OJ24YBQ","canonical_record":{"source":{"id":"1707.03116","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-07-11T03:02:47Z","cross_cats_sorted":[],"title_canon_sha256":"eabb77cfc74c3a950e04416a8c24967365c24792a7b2371358a5c0c2ddbeea5b","abstract_canon_sha256":"7489b776779304c54e8cbae63062be92998b2dc79eb72aba6b5bd9f318c6fb36"},"schema_version":"1.0"},"canonical_sha256":"f393ae6030ca64b91291e686d923681cd5ec15ffaf3fd4294c24793ae997f188","source":{"kind":"arxiv","id":"1707.03116","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.03116","created_at":"2026-05-18T00:40:34Z"},{"alias_kind":"arxiv_version","alias_value":"1707.03116v1","created_at":"2026-05-18T00:40:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.03116","created_at":"2026-05-18T00:40:34Z"},{"alias_kind":"pith_short_12","alias_value":"6OJ24YBQZJSL","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"6OJ24YBQZJSLSEUR","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"6OJ24YBQ","created_at":"2026-05-18T12:31:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:6OJ24YBQZJSLSEUR42DNSI3IDT","target":"record","payload":{"canonical_record":{"source":{"id":"1707.03116","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-07-11T03:02:47Z","cross_cats_sorted":[],"title_canon_sha256":"eabb77cfc74c3a950e04416a8c24967365c24792a7b2371358a5c0c2ddbeea5b","abstract_canon_sha256":"7489b776779304c54e8cbae63062be92998b2dc79eb72aba6b5bd9f318c6fb36"},"schema_version":"1.0"},"canonical_sha256":"f393ae6030ca64b91291e686d923681cd5ec15ffaf3fd4294c24793ae997f188","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:40:34.253996Z","signature_b64":"5pIo3bB+FNw6ZH3MdT6rGuv4fhfCILEIQBub/KfW4ZYWXSph+V55mZiN2eg+SBrNH6VF47Q9hkUAntczxYL4CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f393ae6030ca64b91291e686d923681cd5ec15ffaf3fd4294c24793ae997f188","last_reissued_at":"2026-05-18T00:40:34.253247Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:40:34.253247Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1707.03116","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":"2026-05-18T00:40:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+avrVdeJoCD44+TnMRxMolnf3RbiXNUQeTz9v3DUBwJ6TQh9LBfWmt0eVB+1f4XDUlW8K1m/t91xfM4ySt46BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T02:19:49.817509Z"},"content_sha256":"d6b9b32b408aa55df2927a64d7f7e7335690b296f1f2d2851124d00e11fd3125","schema_version":"1.0","event_id":"sha256:d6b9b32b408aa55df2927a64d7f7e7335690b296f1f2d2851124d00e11fd3125"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:6OJ24YBQZJSLSEUR42DNSI3IDT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Periodicity-free unfolding method of electronic energy spectra: Application to twisted bilayer graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Hirofumi Nishi, Taichi Kosugi, Yasuyuki Kato, Yu-ichiro Matsushita","submitted_at":"2017-07-11T03:02:47Z","abstract_excerpt":"We propose a novel periodicity-free unfolding method of the electronic energy spectra. Our new method solves a serious problem that calculated electronic band structure strongly depends on the choice of the simulation cell, i.e., primitive-cell or supercell. The present method projects the electronic states onto the free-electron states, giving rise to the {\\it plane-wave unfolded} spectra. Using the method, the energy spectra can be calculated as a completely independent quantity from the choice of the simulation cell. We have examined the unfolded energy spectra in detail for three models an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.03116","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":"2026-05-18T00:40:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HsMghYTlPV+oRNjJ5MAz91UK/S83pK+k1tTpQeurNNCqJgf4FOu2mym2aksjXZrrosioG/IYYrZU3yhFvMO9AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T02:19:49.817847Z"},"content_sha256":"43a4f7e7b4f6bfe7c47e9cd943f2988d6721fd4fc06ee99c079755e3fd976784","schema_version":"1.0","event_id":"sha256:43a4f7e7b4f6bfe7c47e9cd943f2988d6721fd4fc06ee99c079755e3fd976784"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6OJ24YBQZJSLSEUR42DNSI3IDT/bundle.json","state_url":"https://pith.science/pith/6OJ24YBQZJSLSEUR42DNSI3IDT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6OJ24YBQZJSLSEUR42DNSI3IDT/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":"2026-06-02T02:19:49Z","links":{"resolver":"https://pith.science/pith/6OJ24YBQZJSLSEUR42DNSI3IDT","bundle":"https://pith.science/pith/6OJ24YBQZJSLSEUR42DNSI3IDT/bundle.json","state":"https://pith.science/pith/6OJ24YBQZJSLSEUR42DNSI3IDT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6OJ24YBQZJSLSEUR42DNSI3IDT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:6OJ24YBQZJSLSEUR42DNSI3IDT","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":"7489b776779304c54e8cbae63062be92998b2dc79eb72aba6b5bd9f318c6fb36","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-07-11T03:02:47Z","title_canon_sha256":"eabb77cfc74c3a950e04416a8c24967365c24792a7b2371358a5c0c2ddbeea5b"},"schema_version":"1.0","source":{"id":"1707.03116","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.03116","created_at":"2026-05-18T00:40:34Z"},{"alias_kind":"arxiv_version","alias_value":"1707.03116v1","created_at":"2026-05-18T00:40:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.03116","created_at":"2026-05-18T00:40:34Z"},{"alias_kind":"pith_short_12","alias_value":"6OJ24YBQZJSL","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"6OJ24YBQZJSLSEUR","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"6OJ24YBQ","created_at":"2026-05-18T12:31:03Z"}],"graph_snapshots":[{"event_id":"sha256:43a4f7e7b4f6bfe7c47e9cd943f2988d6721fd4fc06ee99c079755e3fd976784","target":"graph","created_at":"2026-05-18T00:40:34Z","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 novel periodicity-free unfolding method of the electronic energy spectra. Our new method solves a serious problem that calculated electronic band structure strongly depends on the choice of the simulation cell, i.e., primitive-cell or supercell. The present method projects the electronic states onto the free-electron states, giving rise to the {\\it plane-wave unfolded} spectra. Using the method, the energy spectra can be calculated as a completely independent quantity from the choice of the simulation cell. We have examined the unfolded energy spectra in detail for three models an","authors_text":"Hirofumi Nishi, Taichi Kosugi, Yasuyuki Kato, Yu-ichiro Matsushita","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-07-11T03:02:47Z","title":"Periodicity-free unfolding method of electronic energy spectra: Application to twisted bilayer graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.03116","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:d6b9b32b408aa55df2927a64d7f7e7335690b296f1f2d2851124d00e11fd3125","target":"record","created_at":"2026-05-18T00:40:34Z","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":"7489b776779304c54e8cbae63062be92998b2dc79eb72aba6b5bd9f318c6fb36","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-07-11T03:02:47Z","title_canon_sha256":"eabb77cfc74c3a950e04416a8c24967365c24792a7b2371358a5c0c2ddbeea5b"},"schema_version":"1.0","source":{"id":"1707.03116","kind":"arxiv","version":1}},"canonical_sha256":"f393ae6030ca64b91291e686d923681cd5ec15ffaf3fd4294c24793ae997f188","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f393ae6030ca64b91291e686d923681cd5ec15ffaf3fd4294c24793ae997f188","first_computed_at":"2026-05-18T00:40:34.253247Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:40:34.253247Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5pIo3bB+FNw6ZH3MdT6rGuv4fhfCILEIQBub/KfW4ZYWXSph+V55mZiN2eg+SBrNH6VF47Q9hkUAntczxYL4CA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:40:34.253996Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.03116","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d6b9b32b408aa55df2927a64d7f7e7335690b296f1f2d2851124d00e11fd3125","sha256:43a4f7e7b4f6bfe7c47e9cd943f2988d6721fd4fc06ee99c079755e3fd976784"],"state_sha256":"dc2612ec86f87e108f5da37b25630a7819a73a47fb650d3e0db7f760fc5fceea"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PrZnrt8GTNkROvLF+m8KBBvEF2ANGDSLOR+MmZX4Qm6mRkygq8OVfejC+w2yN+gdZ9i8BMHcz4+9r9tLUhi+Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T02:19:49.819717Z","bundle_sha256":"f7c18d6615b1c3b213ded20c038ec54e4b88816b6595734f8eaa5eb3d393e430"}}