{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:C2OPKBN6C55LKEBAVXGUVG4GUH","short_pith_number":"pith:C2OPKBN6","canonical_record":{"source":{"id":"0905.4426","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2009-05-27T13:53:26Z","cross_cats_sorted":[],"title_canon_sha256":"428b803c63811db16f9087ef1d2da9702a349249551106d6c5e3d35499e3b495","abstract_canon_sha256":"abc2fc85338af3f832569af51728c4c21c3fc7c3496567d612028c3e9365d868"},"schema_version":"1.0"},"canonical_sha256":"169cf505be177ab51020adcd4a9b86a1f7b019b5053105b32653cd4a038565b9","source":{"kind":"arxiv","id":"0905.4426","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0905.4426","created_at":"2026-07-04T17:22:13Z"},{"alias_kind":"arxiv_version","alias_value":"0905.4426v2","created_at":"2026-07-04T17:22:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0905.4426","created_at":"2026-07-04T17:22:13Z"},{"alias_kind":"pith_short_12","alias_value":"C2OPKBN6C55L","created_at":"2026-07-04T17:22:13Z"},{"alias_kind":"pith_short_16","alias_value":"C2OPKBN6C55LKEBA","created_at":"2026-07-04T17:22:13Z"},{"alias_kind":"pith_short_8","alias_value":"C2OPKBN6","created_at":"2026-07-04T17:22:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:C2OPKBN6C55LKEBAVXGUVG4GUH","target":"record","payload":{"canonical_record":{"source":{"id":"0905.4426","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2009-05-27T13:53:26Z","cross_cats_sorted":[],"title_canon_sha256":"428b803c63811db16f9087ef1d2da9702a349249551106d6c5e3d35499e3b495","abstract_canon_sha256":"abc2fc85338af3f832569af51728c4c21c3fc7c3496567d612028c3e9365d868"},"schema_version":"1.0"},"canonical_sha256":"169cf505be177ab51020adcd4a9b86a1f7b019b5053105b32653cd4a038565b9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:22:13.280491Z","signature_b64":"jbqcpbmwZDQ7EMy69Jqz4JRq4VSBYk6zKKJ8wpHO5ec5tzUDphfMkqmoFxg0jhgzbUn14RheuGDXVAIGMyPxBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"169cf505be177ab51020adcd4a9b86a1f7b019b5053105b32653cd4a038565b9","last_reissued_at":"2026-07-04T17:22:13.280077Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:22:13.280077Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0905.4426","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":"2026-07-04T17:22:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CjNt62BU0wwCBxQZhUY5mw1qjfB9jv3EMgpT3tVy5p02q+G6ZhESCdPLxszwz8Eza9Ud0h+rCyQR9TX+9CUbAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T02:24:04.170276Z"},"content_sha256":"40348839047ef50c0bc746d970243d90d17a4f7ec9281bfbe82ce731eac5465b","schema_version":"1.0","event_id":"sha256:40348839047ef50c0bc746d970243d90d17a4f7ec9281bfbe82ce731eac5465b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:C2OPKBN6C55LKEBAVXGUVG4GUH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Analogue Gravity and ultrashort laser pulse filamentation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"A. Averchi, A. Lotti, D. Faccio, J.V. Moloney, M. Kolesik, S. Cacciatori, V. Gorini, V.G. Sala","submitted_at":"2009-05-27T13:53:26Z","abstract_excerpt":"Ultrashort laser pulse filaments in dispersive nonlinear Kerr media induce a moving refractive index perturbation which modifies the space-time geometry as seen by co-propagating light rays. We study the analogue geometry induced by the filament and show that one of the most evident features of filamentation, namely conical emission, may be precisely reconstructed from the geodesics. We highlight the existence of favorable conditions for the study of analogue black hole kinematics and Hawking type radiation."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0905.4426","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0905.4426/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T17:22:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pYiYrmnxfZosOyiwl5XqFKtrWFy5FoX4lAXiidkS+1DqlH97NbuZOO5t49bbqP2dJKfRK7BhWk0260rQf+/lAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T02:24:04.170653Z"},"content_sha256":"bc01050f303c456f2234dd22e332b4272814df4c34fa1ded6ece0c9ba386fa99","schema_version":"1.0","event_id":"sha256:bc01050f303c456f2234dd22e332b4272814df4c34fa1ded6ece0c9ba386fa99"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C2OPKBN6C55LKEBAVXGUVG4GUH/bundle.json","state_url":"https://pith.science/pith/C2OPKBN6C55LKEBAVXGUVG4GUH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C2OPKBN6C55LKEBAVXGUVG4GUH/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":"2026-08-04T02:24:04Z","links":{"resolver":"https://pith.science/pith/C2OPKBN6C55LKEBAVXGUVG4GUH","bundle":"https://pith.science/pith/C2OPKBN6C55LKEBAVXGUVG4GUH/bundle.json","state":"https://pith.science/pith/C2OPKBN6C55LKEBAVXGUVG4GUH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C2OPKBN6C55LKEBAVXGUVG4GUH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:C2OPKBN6C55LKEBAVXGUVG4GUH","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":"abc2fc85338af3f832569af51728c4c21c3fc7c3496567d612028c3e9365d868","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2009-05-27T13:53:26Z","title_canon_sha256":"428b803c63811db16f9087ef1d2da9702a349249551106d6c5e3d35499e3b495"},"schema_version":"1.0","source":{"id":"0905.4426","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0905.4426","created_at":"2026-07-04T17:22:13Z"},{"alias_kind":"arxiv_version","alias_value":"0905.4426v2","created_at":"2026-07-04T17:22:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0905.4426","created_at":"2026-07-04T17:22:13Z"},{"alias_kind":"pith_short_12","alias_value":"C2OPKBN6C55L","created_at":"2026-07-04T17:22:13Z"},{"alias_kind":"pith_short_16","alias_value":"C2OPKBN6C55LKEBA","created_at":"2026-07-04T17:22:13Z"},{"alias_kind":"pith_short_8","alias_value":"C2OPKBN6","created_at":"2026-07-04T17:22:13Z"}],"graph_snapshots":[{"event_id":"sha256:bc01050f303c456f2234dd22e332b4272814df4c34fa1ded6ece0c9ba386fa99","target":"graph","created_at":"2026-07-04T17:22:13Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0905.4426/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Ultrashort laser pulse filaments in dispersive nonlinear Kerr media induce a moving refractive index perturbation which modifies the space-time geometry as seen by co-propagating light rays. We study the analogue geometry induced by the filament and show that one of the most evident features of filamentation, namely conical emission, may be precisely reconstructed from the geodesics. We highlight the existence of favorable conditions for the study of analogue black hole kinematics and Hawking type radiation.","authors_text":"A. Averchi, A. Lotti, D. Faccio, J.V. Moloney, M. Kolesik, S. Cacciatori, V. Gorini, V.G. Sala","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2009-05-27T13:53:26Z","title":"Analogue Gravity and ultrashort laser pulse filamentation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0905.4426","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":"sha256:40348839047ef50c0bc746d970243d90d17a4f7ec9281bfbe82ce731eac5465b","target":"record","created_at":"2026-07-04T17:22:13Z","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":"abc2fc85338af3f832569af51728c4c21c3fc7c3496567d612028c3e9365d868","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2009-05-27T13:53:26Z","title_canon_sha256":"428b803c63811db16f9087ef1d2da9702a349249551106d6c5e3d35499e3b495"},"schema_version":"1.0","source":{"id":"0905.4426","kind":"arxiv","version":2}},"canonical_sha256":"169cf505be177ab51020adcd4a9b86a1f7b019b5053105b32653cd4a038565b9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"169cf505be177ab51020adcd4a9b86a1f7b019b5053105b32653cd4a038565b9","first_computed_at":"2026-07-04T17:22:13.280077Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:22:13.280077Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jbqcpbmwZDQ7EMy69Jqz4JRq4VSBYk6zKKJ8wpHO5ec5tzUDphfMkqmoFxg0jhgzbUn14RheuGDXVAIGMyPxBA==","signature_status":"signed_v1","signed_at":"2026-07-04T17:22:13.280491Z","signed_message":"canonical_sha256_bytes"},"source_id":"0905.4426","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:40348839047ef50c0bc746d970243d90d17a4f7ec9281bfbe82ce731eac5465b","sha256:bc01050f303c456f2234dd22e332b4272814df4c34fa1ded6ece0c9ba386fa99"],"state_sha256":"3fdf6a9aa85376b754d6f0789bb3aba09af262ab3ec13999be07abb6dc6408ad"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X6wsmn1ggbfCHR9MyACyCMRhWGB5wW/wErgUYEgs7xQk5twVlMW/Je/WGWWA5bUtP+dMK2a7WNTpnQ5opMENCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T02:24:04.173248Z","bundle_sha256":"64ee8e9c5d868256821f573d31301f2edb1b7d29f00b37b38ccdae14da9f1a12"}}