{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:Q7LCUCYH7TFZLYR67NOHVXKZ3Z","short_pith_number":"pith:Q7LCUCYH","canonical_record":{"source":{"id":"1504.07427","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-04-28T11:09:08Z","cross_cats_sorted":[],"title_canon_sha256":"9653ea5f96b3cb997f56422e04c071496e26e5450120d6e1ada0012b13c53b6f","abstract_canon_sha256":"51ca3703fa6d29509ea71d64c22c240e5f819865ef2102b3a850d3205556a1ce"},"schema_version":"1.0"},"canonical_sha256":"87d62a0b07fccb95e23efb5c7add59de594c651f778188520d7fabd934c8e2d9","source":{"kind":"arxiv","id":"1504.07427","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.07427","created_at":"2026-05-18T01:31:39Z"},{"alias_kind":"arxiv_version","alias_value":"1504.07427v2","created_at":"2026-05-18T01:31:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.07427","created_at":"2026-05-18T01:31:39Z"},{"alias_kind":"pith_short_12","alias_value":"Q7LCUCYH7TFZ","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"Q7LCUCYH7TFZLYR6","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"Q7LCUCYH","created_at":"2026-05-18T12:29:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:Q7LCUCYH7TFZLYR67NOHVXKZ3Z","target":"record","payload":{"canonical_record":{"source":{"id":"1504.07427","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-04-28T11:09:08Z","cross_cats_sorted":[],"title_canon_sha256":"9653ea5f96b3cb997f56422e04c071496e26e5450120d6e1ada0012b13c53b6f","abstract_canon_sha256":"51ca3703fa6d29509ea71d64c22c240e5f819865ef2102b3a850d3205556a1ce"},"schema_version":"1.0"},"canonical_sha256":"87d62a0b07fccb95e23efb5c7add59de594c651f778188520d7fabd934c8e2d9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:31:39.427992Z","signature_b64":"ODWkaeSWoqnnWZ52Cc8VQQj9DrphC8hC38rHTC8cvy5ldZQY7cAky3JvCY1YAFNZjMMKmhuu7ctOcL4nBvVoCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"87d62a0b07fccb95e23efb5c7add59de594c651f778188520d7fabd934c8e2d9","last_reissued_at":"2026-05-18T01:31:39.427494Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:31:39.427494Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.07427","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":"2026-05-18T01:31:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ig7rwks+TFZUGQ8B6mCz9NYk0XROdCrlhnDb5AuTly7qw5erFmNyAJbilzhaH6U88NBRq+6/+5fBpsjbRk8cDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T02:46:06.510702Z"},"content_sha256":"2a0e6f72b9a51d8984f7adfe1d9fa8ead9f44e15165a998aded8c77158eb0e2a","schema_version":"1.0","event_id":"sha256:2a0e6f72b9a51d8984f7adfe1d9fa8ead9f44e15165a998aded8c77158eb0e2a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:Q7LCUCYH7TFZLYR67NOHVXKZ3Z","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum vacuum emission from a refractive index front","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Friedrich Koenig, Maxime Jacquet","submitted_at":"2015-04-28T11:09:08Z","abstract_excerpt":"A moving boundary separating two otherwise homogeneous regions of a dielectric is known to emit radiation from the quantum vacuum. An analytical framework based on the Hopfield model, describing a moving refractive index step in 1+1 dimensions for realistic dispersive media has been developed in [1]. We expand the use of this model to calculate explicitly spectra of all modes of positive and negative norm. Furthermore, for lower step heights we obtain a novel set of mode configurations. This leads to a realistic emission spectrum featuring black hole- and white hole emission for different freq"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.07427","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":"2026-05-18T01:31:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hgiGTd5qpdLAIPfBY0lKyYje00YQd4MOFcBE8jmWiTyMqhlJkaYgzvppk+AAOpZWB9VnFdCSXyquusFdCx4/Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T02:46:06.511647Z"},"content_sha256":"384bef0ad035a7913377332b3ababd6810a28731407519554470b4627e5da35e","schema_version":"1.0","event_id":"sha256:384bef0ad035a7913377332b3ababd6810a28731407519554470b4627e5da35e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q7LCUCYH7TFZLYR67NOHVXKZ3Z/bundle.json","state_url":"https://pith.science/pith/Q7LCUCYH7TFZLYR67NOHVXKZ3Z/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q7LCUCYH7TFZLYR67NOHVXKZ3Z/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":"2026-06-07T02:46:06Z","links":{"resolver":"https://pith.science/pith/Q7LCUCYH7TFZLYR67NOHVXKZ3Z","bundle":"https://pith.science/pith/Q7LCUCYH7TFZLYR67NOHVXKZ3Z/bundle.json","state":"https://pith.science/pith/Q7LCUCYH7TFZLYR67NOHVXKZ3Z/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q7LCUCYH7TFZLYR67NOHVXKZ3Z/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:Q7LCUCYH7TFZLYR67NOHVXKZ3Z","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":"51ca3703fa6d29509ea71d64c22c240e5f819865ef2102b3a850d3205556a1ce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-04-28T11:09:08Z","title_canon_sha256":"9653ea5f96b3cb997f56422e04c071496e26e5450120d6e1ada0012b13c53b6f"},"schema_version":"1.0","source":{"id":"1504.07427","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.07427","created_at":"2026-05-18T01:31:39Z"},{"alias_kind":"arxiv_version","alias_value":"1504.07427v2","created_at":"2026-05-18T01:31:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.07427","created_at":"2026-05-18T01:31:39Z"},{"alias_kind":"pith_short_12","alias_value":"Q7LCUCYH7TFZ","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"Q7LCUCYH7TFZLYR6","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"Q7LCUCYH","created_at":"2026-05-18T12:29:37Z"}],"graph_snapshots":[{"event_id":"sha256:384bef0ad035a7913377332b3ababd6810a28731407519554470b4627e5da35e","target":"graph","created_at":"2026-05-18T01:31:39Z","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":"A moving boundary separating two otherwise homogeneous regions of a dielectric is known to emit radiation from the quantum vacuum. An analytical framework based on the Hopfield model, describing a moving refractive index step in 1+1 dimensions for realistic dispersive media has been developed in [1]. We expand the use of this model to calculate explicitly spectra of all modes of positive and negative norm. Furthermore, for lower step heights we obtain a novel set of mode configurations. This leads to a realistic emission spectrum featuring black hole- and white hole emission for different freq","authors_text":"Friedrich Koenig, Maxime Jacquet","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-04-28T11:09:08Z","title":"Quantum vacuum emission from a refractive index front"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.07427","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":"sha256:2a0e6f72b9a51d8984f7adfe1d9fa8ead9f44e15165a998aded8c77158eb0e2a","target":"record","created_at":"2026-05-18T01:31:39Z","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":"51ca3703fa6d29509ea71d64c22c240e5f819865ef2102b3a850d3205556a1ce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-04-28T11:09:08Z","title_canon_sha256":"9653ea5f96b3cb997f56422e04c071496e26e5450120d6e1ada0012b13c53b6f"},"schema_version":"1.0","source":{"id":"1504.07427","kind":"arxiv","version":2}},"canonical_sha256":"87d62a0b07fccb95e23efb5c7add59de594c651f778188520d7fabd934c8e2d9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"87d62a0b07fccb95e23efb5c7add59de594c651f778188520d7fabd934c8e2d9","first_computed_at":"2026-05-18T01:31:39.427494Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:31:39.427494Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ODWkaeSWoqnnWZ52Cc8VQQj9DrphC8hC38rHTC8cvy5ldZQY7cAky3JvCY1YAFNZjMMKmhuu7ctOcL4nBvVoCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:31:39.427992Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.07427","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2a0e6f72b9a51d8984f7adfe1d9fa8ead9f44e15165a998aded8c77158eb0e2a","sha256:384bef0ad035a7913377332b3ababd6810a28731407519554470b4627e5da35e"],"state_sha256":"ad7599dbf9b29c38d2f0d0a3c85cf22243d6620f85b615b11d2ca704f6b8fd5a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZXvhF3iLD4RjMNe/DaVGpHj6UVY6XjSHzM/I5Ht7Uos2mYewvNR8aLE4bQ/2SEEBLRbUZNKdPZgFcdNeem8sBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T02:46:06.515085Z","bundle_sha256":"8fac63de25569d8c97677feca835de11dc55a21a1bc89588164588f19cb68d0d"}}