{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:PBGMK5HBZ4QFTA4T63BMN76C32","short_pith_number":"pith:PBGMK5HB","canonical_record":{"source":{"id":"1306.0641","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-06-04T02:40:44Z","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"title_canon_sha256":"def925a4161003b6544dc109443c3951436f80c5bd069b3dd47b7801a9dd50df","abstract_canon_sha256":"b0f5fa6fd76dfb5e8d47214f91655381c53b98bee060842e9df9b5d70bd45ed0"},"schema_version":"1.0"},"canonical_sha256":"784cc574e1cf20598393f6c2c6ffc2deaf029cce4ceefc19e5c68afb5d37c9c3","source":{"kind":"arxiv","id":"1306.0641","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.0641","created_at":"2026-05-18T03:09:33Z"},{"alias_kind":"arxiv_version","alias_value":"1306.0641v1","created_at":"2026-05-18T03:09:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.0641","created_at":"2026-05-18T03:09:33Z"},{"alias_kind":"pith_short_12","alias_value":"PBGMK5HBZ4QF","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"PBGMK5HBZ4QFTA4T","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"PBGMK5HB","created_at":"2026-05-18T12:27:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:PBGMK5HBZ4QFTA4T63BMN76C32","target":"record","payload":{"canonical_record":{"source":{"id":"1306.0641","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-06-04T02:40:44Z","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"title_canon_sha256":"def925a4161003b6544dc109443c3951436f80c5bd069b3dd47b7801a9dd50df","abstract_canon_sha256":"b0f5fa6fd76dfb5e8d47214f91655381c53b98bee060842e9df9b5d70bd45ed0"},"schema_version":"1.0"},"canonical_sha256":"784cc574e1cf20598393f6c2c6ffc2deaf029cce4ceefc19e5c68afb5d37c9c3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:09:33.584714Z","signature_b64":"PQHNVINONS63XMNzSj2/ZkOp17MBDYJyVy5iPLYfEPBZN+ktdiC7H6DjYp7ac0Is4B2IN+BAVmCOxQTlQlnyDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"784cc574e1cf20598393f6c2c6ffc2deaf029cce4ceefc19e5c68afb5d37c9c3","last_reissued_at":"2026-05-18T03:09:33.584182Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:09:33.584182Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.0641","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":"2026-05-18T03:09:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3L7P8qGgdj4zk0FIB6B3lOqjfRX6bTrIYV3/9qEg+W6EjB2UOpJKIJAihoKDJCZutYC2wfXaVUOqm7qQglPNDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T03:22:01.958729Z"},"content_sha256":"13dab8ff4100b3a8f408375f7462d2b2cfc2c770094ef40661d4daf24b7f4c62","schema_version":"1.0","event_id":"sha256:13dab8ff4100b3a8f408375f7462d2b2cfc2c770094ef40661d4daf24b7f4c62"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:PBGMK5HBZ4QFTA4T63BMN76C32","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detection of shorter-than-skin-depth acoustic pulses in a metal film via transient reflectivity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","physics.optics"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. A. Maznev, C.-B. Eom, C. Klieber, D. Makarov, K. A. Nelson, K. J. Manke, S.-H. Baek, V. Shalagatskyi, V. V. Temnov","submitted_at":"2013-06-04T02:40:44Z","abstract_excerpt":"The detection of ultrashort laser-generated acoustic pulses at a metal surface and the reconstruction of the acoustic strain profile are investigated. A 2 ps-long acoustic pulse generated in an SrRuO$_{3}$ layer propagates through an adjacent gold layer and is detected at its surface by a reflected probe pulse. We show that the intricate shape of the transient reflectivity waveform and the ability to resolve acoustic pulses shorter than the optical skin depth are controlled by a single parameter, which is determined by the ratio of the real and imaginary parts of the photoelastic constant of t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.0641","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":"2026-05-18T03:09:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sNcoKG2LjzyktfeGYmNJiPtz5U33xBpq9ev01Syes3WSew+AiGMArEDP35UewXqYCyuwSJbJpGghy0B5Z4TLAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T03:22:01.959362Z"},"content_sha256":"106da46148627b4501d20a209a9f785212bc9ae9dd54d9473f49aea336895ca6","schema_version":"1.0","event_id":"sha256:106da46148627b4501d20a209a9f785212bc9ae9dd54d9473f49aea336895ca6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PBGMK5HBZ4QFTA4T63BMN76C32/bundle.json","state_url":"https://pith.science/pith/PBGMK5HBZ4QFTA4T63BMN76C32/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PBGMK5HBZ4QFTA4T63BMN76C32/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":"2026-05-25T03:22:01Z","links":{"resolver":"https://pith.science/pith/PBGMK5HBZ4QFTA4T63BMN76C32","bundle":"https://pith.science/pith/PBGMK5HBZ4QFTA4T63BMN76C32/bundle.json","state":"https://pith.science/pith/PBGMK5HBZ4QFTA4T63BMN76C32/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PBGMK5HBZ4QFTA4T63BMN76C32/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:PBGMK5HBZ4QFTA4T63BMN76C32","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":"b0f5fa6fd76dfb5e8d47214f91655381c53b98bee060842e9df9b5d70bd45ed0","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-06-04T02:40:44Z","title_canon_sha256":"def925a4161003b6544dc109443c3951436f80c5bd069b3dd47b7801a9dd50df"},"schema_version":"1.0","source":{"id":"1306.0641","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.0641","created_at":"2026-05-18T03:09:33Z"},{"alias_kind":"arxiv_version","alias_value":"1306.0641v1","created_at":"2026-05-18T03:09:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.0641","created_at":"2026-05-18T03:09:33Z"},{"alias_kind":"pith_short_12","alias_value":"PBGMK5HBZ4QF","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"PBGMK5HBZ4QFTA4T","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"PBGMK5HB","created_at":"2026-05-18T12:27:54Z"}],"graph_snapshots":[{"event_id":"sha256:106da46148627b4501d20a209a9f785212bc9ae9dd54d9473f49aea336895ca6","target":"graph","created_at":"2026-05-18T03:09:33Z","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 detection of ultrashort laser-generated acoustic pulses at a metal surface and the reconstruction of the acoustic strain profile are investigated. A 2 ps-long acoustic pulse generated in an SrRuO$_{3}$ layer propagates through an adjacent gold layer and is detected at its surface by a reflected probe pulse. We show that the intricate shape of the transient reflectivity waveform and the ability to resolve acoustic pulses shorter than the optical skin depth are controlled by a single parameter, which is determined by the ratio of the real and imaginary parts of the photoelastic constant of t","authors_text":"A. A. Maznev, C.-B. Eom, C. Klieber, D. Makarov, K. A. Nelson, K. J. Manke, S.-H. Baek, V. Shalagatskyi, V. V. Temnov","cross_cats":["cond-mat.mes-hall","physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-06-04T02:40:44Z","title":"Detection of shorter-than-skin-depth acoustic pulses in a metal film via transient reflectivity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.0641","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":"sha256:13dab8ff4100b3a8f408375f7462d2b2cfc2c770094ef40661d4daf24b7f4c62","target":"record","created_at":"2026-05-18T03:09:33Z","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":"b0f5fa6fd76dfb5e8d47214f91655381c53b98bee060842e9df9b5d70bd45ed0","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-06-04T02:40:44Z","title_canon_sha256":"def925a4161003b6544dc109443c3951436f80c5bd069b3dd47b7801a9dd50df"},"schema_version":"1.0","source":{"id":"1306.0641","kind":"arxiv","version":1}},"canonical_sha256":"784cc574e1cf20598393f6c2c6ffc2deaf029cce4ceefc19e5c68afb5d37c9c3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"784cc574e1cf20598393f6c2c6ffc2deaf029cce4ceefc19e5c68afb5d37c9c3","first_computed_at":"2026-05-18T03:09:33.584182Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:09:33.584182Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PQHNVINONS63XMNzSj2/ZkOp17MBDYJyVy5iPLYfEPBZN+ktdiC7H6DjYp7ac0Is4B2IN+BAVmCOxQTlQlnyDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:09:33.584714Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.0641","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:13dab8ff4100b3a8f408375f7462d2b2cfc2c770094ef40661d4daf24b7f4c62","sha256:106da46148627b4501d20a209a9f785212bc9ae9dd54d9473f49aea336895ca6"],"state_sha256":"6c03d76d5e5384c63f69859e5a3949c27a721aa7dc91f5b9dbb8de19211dac58"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EU0DPZ0v4TXExKH5VjeWuqKkioSby1ObC/Mc6xcvBxJzPIzCg3wxw/svTtarXqzzcf6dkFlmedm9atfTb4DwBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T03:22:01.962079Z","bundle_sha256":"c5366a78757a731e8dd28363bf576f7926704a1d0c800c611b41573366dea4ca"}}