{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:TSKKF6BNMMLAB6QZHYPS5SPIEQ","short_pith_number":"pith:TSKKF6BN","canonical_record":{"source":{"id":"0904.2662","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2009-04-17T09:46:57Z","cross_cats_sorted":["physics.plasm-ph"],"title_canon_sha256":"38ebde3e21f38ff1460f17150907e67404e208aa2a8c1bd84d6e6dcdba084e22","abstract_canon_sha256":"c253ea93476e8b89b726326ce8fb45d033a1b0bdcefb7b71178833a4fb010438"},"schema_version":"1.0"},"canonical_sha256":"9c94a2f82d631600fa193e1f2ec9e82412b239b83002514472b04d617992cb40","source":{"kind":"arxiv","id":"0904.2662","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.2662","created_at":"2026-05-18T02:13:59Z"},{"alias_kind":"arxiv_version","alias_value":"0904.2662v1","created_at":"2026-05-18T02:13:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.2662","created_at":"2026-05-18T02:13:59Z"},{"alias_kind":"pith_short_12","alias_value":"TSKKF6BNMMLA","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"TSKKF6BNMMLAB6QZ","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"TSKKF6BN","created_at":"2026-05-18T12:26:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:TSKKF6BNMMLAB6QZHYPS5SPIEQ","target":"record","payload":{"canonical_record":{"source":{"id":"0904.2662","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2009-04-17T09:46:57Z","cross_cats_sorted":["physics.plasm-ph"],"title_canon_sha256":"38ebde3e21f38ff1460f17150907e67404e208aa2a8c1bd84d6e6dcdba084e22","abstract_canon_sha256":"c253ea93476e8b89b726326ce8fb45d033a1b0bdcefb7b71178833a4fb010438"},"schema_version":"1.0"},"canonical_sha256":"9c94a2f82d631600fa193e1f2ec9e82412b239b83002514472b04d617992cb40","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:13:59.560635Z","signature_b64":"rSmNlTDUHZ6Pk5x3Rd/bOZ94+TykA1R4wnmwQ7D2RbxNekgQ5X9YMY7pVRELVFF7WyFAkZDzoO3+j10dzHtwDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9c94a2f82d631600fa193e1f2ec9e82412b239b83002514472b04d617992cb40","last_reissued_at":"2026-05-18T02:13:59.559772Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:13:59.559772Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0904.2662","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":"2026-05-18T02:13:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q2Ec3H0+uuIBR7C6e5Cgd21bV153rEQ69y6ZgXf+LpNL3bVEAThlUNJq5joBf8/shW8rPv4rpwHl5NtqvHVgDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T13:10:54.016123Z"},"content_sha256":"d4e82845f96ec7e4c981e2b0e2d844611738ad643f7e988a5f0ef578343ba9e6","schema_version":"1.0","event_id":"sha256:d4e82845f96ec7e4c981e2b0e2d844611738ad643f7e988a5f0ef578343ba9e6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:TSKKF6BNMMLAB6QZHYPS5SPIEQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Plasmons and polaritons in a semi-infinite plasma and a plasma slab","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.plasm-ph"],"primary_cat":"physics.optics","authors_text":"G. Vaman, M. Apostol","submitted_at":"2009-04-17T09:46:57Z","abstract_excerpt":"Plasmon and polariton modes are derived for an ideal semi-infinite (half-space) plasma and an ideal plasma slab by using a general, unifying procedure, based on equations of motion, Maxwell's equations and suitable boundary conditions. Known results are re-obtained in much a more direct manner and new ones are derived. The approach consists of representing the charge disturbances by a displacement field in the positions of the moving particles (electrons). The dielectric response and the electron energy loss are computed. The surface contribution to the energy loss exhibits an oscillatory beha"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.2662","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":"2026-05-18T02:13:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BkP7I8zNo/6Jfg9t5hFe4dmhkZVPC49vQLyqFl0awrNzss+xP8Iy1SO8oFJy/vf8jmSX23cu0Cpessf59bamCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T13:10:54.016808Z"},"content_sha256":"2a99150c7b2970a758a881b2d1f61e160ffa82bdb52fd6c267290b60bc367d5f","schema_version":"1.0","event_id":"sha256:2a99150c7b2970a758a881b2d1f61e160ffa82bdb52fd6c267290b60bc367d5f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TSKKF6BNMMLAB6QZHYPS5SPIEQ/bundle.json","state_url":"https://pith.science/pith/TSKKF6BNMMLAB6QZHYPS5SPIEQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TSKKF6BNMMLAB6QZHYPS5SPIEQ/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":"2026-06-11T13:10:54Z","links":{"resolver":"https://pith.science/pith/TSKKF6BNMMLAB6QZHYPS5SPIEQ","bundle":"https://pith.science/pith/TSKKF6BNMMLAB6QZHYPS5SPIEQ/bundle.json","state":"https://pith.science/pith/TSKKF6BNMMLAB6QZHYPS5SPIEQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TSKKF6BNMMLAB6QZHYPS5SPIEQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:TSKKF6BNMMLAB6QZHYPS5SPIEQ","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":"c253ea93476e8b89b726326ce8fb45d033a1b0bdcefb7b71178833a4fb010438","cross_cats_sorted":["physics.plasm-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2009-04-17T09:46:57Z","title_canon_sha256":"38ebde3e21f38ff1460f17150907e67404e208aa2a8c1bd84d6e6dcdba084e22"},"schema_version":"1.0","source":{"id":"0904.2662","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.2662","created_at":"2026-05-18T02:13:59Z"},{"alias_kind":"arxiv_version","alias_value":"0904.2662v1","created_at":"2026-05-18T02:13:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.2662","created_at":"2026-05-18T02:13:59Z"},{"alias_kind":"pith_short_12","alias_value":"TSKKF6BNMMLA","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"TSKKF6BNMMLAB6QZ","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"TSKKF6BN","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:2a99150c7b2970a758a881b2d1f61e160ffa82bdb52fd6c267290b60bc367d5f","target":"graph","created_at":"2026-05-18T02:13:59Z","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":"Plasmon and polariton modes are derived for an ideal semi-infinite (half-space) plasma and an ideal plasma slab by using a general, unifying procedure, based on equations of motion, Maxwell's equations and suitable boundary conditions. Known results are re-obtained in much a more direct manner and new ones are derived. The approach consists of representing the charge disturbances by a displacement field in the positions of the moving particles (electrons). The dielectric response and the electron energy loss are computed. The surface contribution to the energy loss exhibits an oscillatory beha","authors_text":"G. Vaman, M. Apostol","cross_cats":["physics.plasm-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2009-04-17T09:46:57Z","title":"Plasmons and polaritons in a semi-infinite plasma and a plasma slab"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.2662","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:d4e82845f96ec7e4c981e2b0e2d844611738ad643f7e988a5f0ef578343ba9e6","target":"record","created_at":"2026-05-18T02:13:59Z","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":"c253ea93476e8b89b726326ce8fb45d033a1b0bdcefb7b71178833a4fb010438","cross_cats_sorted":["physics.plasm-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2009-04-17T09:46:57Z","title_canon_sha256":"38ebde3e21f38ff1460f17150907e67404e208aa2a8c1bd84d6e6dcdba084e22"},"schema_version":"1.0","source":{"id":"0904.2662","kind":"arxiv","version":1}},"canonical_sha256":"9c94a2f82d631600fa193e1f2ec9e82412b239b83002514472b04d617992cb40","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9c94a2f82d631600fa193e1f2ec9e82412b239b83002514472b04d617992cb40","first_computed_at":"2026-05-18T02:13:59.559772Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:13:59.559772Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rSmNlTDUHZ6Pk5x3Rd/bOZ94+TykA1R4wnmwQ7D2RbxNekgQ5X9YMY7pVRELVFF7WyFAkZDzoO3+j10dzHtwDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:13:59.560635Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.2662","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d4e82845f96ec7e4c981e2b0e2d844611738ad643f7e988a5f0ef578343ba9e6","sha256:2a99150c7b2970a758a881b2d1f61e160ffa82bdb52fd6c267290b60bc367d5f"],"state_sha256":"3f2210a3e44d722b12541871d2a4fbeeee108a59131cb46cfe0726e75fb77587"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+5UOgk9lb6jBHn6YNutSf1tEL/C00U2D7H0ba0AKJNzAQ24mejwoTXzNLhxbLm6a0ArXU3pmnOsnNJ6dABkdCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T13:10:54.019934Z","bundle_sha256":"c7604c8999192e38c223722014efb239279a3b559d03ca338acfc607433a649f"}}