{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:LHG7LQLSOKRJNOEF4LHWZK37YN","short_pith_number":"pith:LHG7LQLS","canonical_record":{"source":{"id":"1801.00729","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-01-02T17:09:33Z","cross_cats_sorted":[],"title_canon_sha256":"02e88be19e80e03412668a336e8025380e3515f8dfc83c01cf0e531e565b181d","abstract_canon_sha256":"97e2d9cb86d46a0517112ecf9c30d9cd22a3d6f175371bc847c60360116ebacf"},"schema_version":"1.0"},"canonical_sha256":"59cdf5c17272a296b885e2cf6cab7fc364b6ffd5adf71f12813b6975882810b2","source":{"kind":"arxiv","id":"1801.00729","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.00729","created_at":"2026-05-18T00:11:50Z"},{"alias_kind":"arxiv_version","alias_value":"1801.00729v2","created_at":"2026-05-18T00:11:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.00729","created_at":"2026-05-18T00:11:50Z"},{"alias_kind":"pith_short_12","alias_value":"LHG7LQLSOKRJ","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"LHG7LQLSOKRJNOEF","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"LHG7LQLS","created_at":"2026-05-18T12:32:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:LHG7LQLSOKRJNOEF4LHWZK37YN","target":"record","payload":{"canonical_record":{"source":{"id":"1801.00729","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-01-02T17:09:33Z","cross_cats_sorted":[],"title_canon_sha256":"02e88be19e80e03412668a336e8025380e3515f8dfc83c01cf0e531e565b181d","abstract_canon_sha256":"97e2d9cb86d46a0517112ecf9c30d9cd22a3d6f175371bc847c60360116ebacf"},"schema_version":"1.0"},"canonical_sha256":"59cdf5c17272a296b885e2cf6cab7fc364b6ffd5adf71f12813b6975882810b2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:50.115517Z","signature_b64":"bwLVwZ/sGeSwJSh16XF06tgilLvqfdpWupxMbvhIxoJ+ZgZu3FmPG6m7kfEIh08mqfBxrUNxiycJ3VH3h84ZAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"59cdf5c17272a296b885e2cf6cab7fc364b6ffd5adf71f12813b6975882810b2","last_reissued_at":"2026-05-18T00:11:50.114776Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:50.114776Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.00729","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":"2026-05-18T00:11:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HFVOrm73Irfwpn33DW7KS8nWs5b5uJXG8t3fywmhWVYrhXC5AEMY60Ly/loTKL0chAjd1J9Rfxn7M1sOLf1qCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T15:03:33.637765Z"},"content_sha256":"d48bb37adbf460ad175edfe3b88b79194a09583ed909219a60f5aa5218b6ad52","schema_version":"1.0","event_id":"sha256:d48bb37adbf460ad175edfe3b88b79194a09583ed909219a60f5aa5218b6ad52"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:LHG7LQLSOKRJNOEF4LHWZK37YN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Surface plasmons in a semi-bounded massless Dirac plasma","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"A. P. Misra, M. Shahmansouri, R. Aboltaman","submitted_at":"2018-01-02T17:09:33Z","abstract_excerpt":"The collective excitation of surface plasmons in a massless Dirac plasma (e.g., graphene) half-space (bounded by air) is investigated using a relativistic quantum fluid model. The unique features of such surface waves are discussed and compared with those in a Fermi plasma. It is found that in contrast to Fermi plasmas, the long-wavelength surface plasmon frequency $(\\omega)$ in massless Dirac plasmas is explicitly nonclassical, i.e., $\\omega\\propto1/\\sqrt{\\hbar}$, where $h=2\\pi\\hbar$ is the Planck's constant. Besides some apparent similarities between the surface plasmon frequencies in massle"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.00729","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":"2026-05-18T00:11:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cx0SNqAPjcXvT1GdurBJmZOUtn4HFGPSs0sM6R1U5ifycQD6rLNiMjlCEuBVYnxOC5uOQ1ZR5kya8V3RUHo3Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T15:03:33.638468Z"},"content_sha256":"02134e59af4ed746dccc48f8cb9bd37445ec1962c9036d9efa54d3fbfe7dd1de","schema_version":"1.0","event_id":"sha256:02134e59af4ed746dccc48f8cb9bd37445ec1962c9036d9efa54d3fbfe7dd1de"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LHG7LQLSOKRJNOEF4LHWZK37YN/bundle.json","state_url":"https://pith.science/pith/LHG7LQLSOKRJNOEF4LHWZK37YN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LHG7LQLSOKRJNOEF4LHWZK37YN/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":"2026-05-31T15:03:33Z","links":{"resolver":"https://pith.science/pith/LHG7LQLSOKRJNOEF4LHWZK37YN","bundle":"https://pith.science/pith/LHG7LQLSOKRJNOEF4LHWZK37YN/bundle.json","state":"https://pith.science/pith/LHG7LQLSOKRJNOEF4LHWZK37YN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LHG7LQLSOKRJNOEF4LHWZK37YN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:LHG7LQLSOKRJNOEF4LHWZK37YN","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":"97e2d9cb86d46a0517112ecf9c30d9cd22a3d6f175371bc847c60360116ebacf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-01-02T17:09:33Z","title_canon_sha256":"02e88be19e80e03412668a336e8025380e3515f8dfc83c01cf0e531e565b181d"},"schema_version":"1.0","source":{"id":"1801.00729","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.00729","created_at":"2026-05-18T00:11:50Z"},{"alias_kind":"arxiv_version","alias_value":"1801.00729v2","created_at":"2026-05-18T00:11:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.00729","created_at":"2026-05-18T00:11:50Z"},{"alias_kind":"pith_short_12","alias_value":"LHG7LQLSOKRJ","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"LHG7LQLSOKRJNOEF","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"LHG7LQLS","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:02134e59af4ed746dccc48f8cb9bd37445ec1962c9036d9efa54d3fbfe7dd1de","target":"graph","created_at":"2026-05-18T00:11:50Z","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":"The collective excitation of surface plasmons in a massless Dirac plasma (e.g., graphene) half-space (bounded by air) is investigated using a relativistic quantum fluid model. The unique features of such surface waves are discussed and compared with those in a Fermi plasma. It is found that in contrast to Fermi plasmas, the long-wavelength surface plasmon frequency $(\\omega)$ in massless Dirac plasmas is explicitly nonclassical, i.e., $\\omega\\propto1/\\sqrt{\\hbar}$, where $h=2\\pi\\hbar$ is the Planck's constant. Besides some apparent similarities between the surface plasmon frequencies in massle","authors_text":"A. P. Misra, M. Shahmansouri, R. Aboltaman","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-01-02T17:09:33Z","title":"Surface plasmons in a semi-bounded massless Dirac plasma"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.00729","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:d48bb37adbf460ad175edfe3b88b79194a09583ed909219a60f5aa5218b6ad52","target":"record","created_at":"2026-05-18T00:11:50Z","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":"97e2d9cb86d46a0517112ecf9c30d9cd22a3d6f175371bc847c60360116ebacf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-01-02T17:09:33Z","title_canon_sha256":"02e88be19e80e03412668a336e8025380e3515f8dfc83c01cf0e531e565b181d"},"schema_version":"1.0","source":{"id":"1801.00729","kind":"arxiv","version":2}},"canonical_sha256":"59cdf5c17272a296b885e2cf6cab7fc364b6ffd5adf71f12813b6975882810b2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"59cdf5c17272a296b885e2cf6cab7fc364b6ffd5adf71f12813b6975882810b2","first_computed_at":"2026-05-18T00:11:50.114776Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:50.114776Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bwLVwZ/sGeSwJSh16XF06tgilLvqfdpWupxMbvhIxoJ+ZgZu3FmPG6m7kfEIh08mqfBxrUNxiycJ3VH3h84ZAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:50.115517Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.00729","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d48bb37adbf460ad175edfe3b88b79194a09583ed909219a60f5aa5218b6ad52","sha256:02134e59af4ed746dccc48f8cb9bd37445ec1962c9036d9efa54d3fbfe7dd1de"],"state_sha256":"e2597d403c7d33c6a669d2a47b33ec1fd490f3e1c582aafcab0f41aa87371a4f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r0UIYqT4HnI2/nVDieZ/qFJxNMGzhVfdk8jXXckTlgbWySIpLpAhUJFTnuLep0wbADvoWaBLcCTAwN5ya8IBAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T15:03:33.642561Z","bundle_sha256":"a7131a5e629577e99935b3c1238ffd237e829f17391998b1ad5e0a8e36e947bd"}}