{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:WGJU2ZTYK4KRHP2QUXTH3G6UHU","short_pith_number":"pith:WGJU2ZTY","canonical_record":{"source":{"id":"1506.03228","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-06-10T09:15:17Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"52204eaae5fb5472b6456304a433b308cc18b1502150416834dc5b5978743d0c","abstract_canon_sha256":"c636d45e0dc134e6d509ea846e3e54b22987929a2b5faf91e3b50a91e811ab9a"},"schema_version":"1.0"},"canonical_sha256":"b1934d6678571513bf50a5e67d9bd43d286d1e9b10c0b502aedd76e57d3f2d9d","source":{"kind":"arxiv","id":"1506.03228","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.03228","created_at":"2026-05-18T01:37:10Z"},{"alias_kind":"arxiv_version","alias_value":"1506.03228v1","created_at":"2026-05-18T01:37:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.03228","created_at":"2026-05-18T01:37:10Z"},{"alias_kind":"pith_short_12","alias_value":"WGJU2ZTYK4KR","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"WGJU2ZTYK4KRHP2Q","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"WGJU2ZTY","created_at":"2026-05-18T12:29:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:WGJU2ZTYK4KRHP2QUXTH3G6UHU","target":"record","payload":{"canonical_record":{"source":{"id":"1506.03228","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-06-10T09:15:17Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"52204eaae5fb5472b6456304a433b308cc18b1502150416834dc5b5978743d0c","abstract_canon_sha256":"c636d45e0dc134e6d509ea846e3e54b22987929a2b5faf91e3b50a91e811ab9a"},"schema_version":"1.0"},"canonical_sha256":"b1934d6678571513bf50a5e67d9bd43d286d1e9b10c0b502aedd76e57d3f2d9d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:37:10.749528Z","signature_b64":"xOyl4b0NGptor6yJmHmrb06m9QAzD3345HZHpCGLT0P19D7OIiDUi23xQoynsjaLJVk40ouB7CtRFL6cPEgkAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b1934d6678571513bf50a5e67d9bd43d286d1e9b10c0b502aedd76e57d3f2d9d","last_reissued_at":"2026-05-18T01:37:10.748946Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:37:10.748946Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1506.03228","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":"2026-05-18T01:37:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DamifWRJFamq8OnuFnd0u3vhCYA4J6n3juFey4W5Sp9AUizK5NvhhDoH7T6YkmGgzCT/bPu2kFlpP3icKAAYBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T22:28:59.773302Z"},"content_sha256":"56d6b860d9a9972895fa2152ae9471eb8b36d36cd399174bf18e5bfff6962df1","schema_version":"1.0","event_id":"sha256:56d6b860d9a9972895fa2152ae9471eb8b36d36cd399174bf18e5bfff6962df1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:WGJU2ZTYK4KRHP2QUXTH3G6UHU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multiwavelength excitation Raman Scattering Analysis of bulk and 2 dimensional MoS2: Vibrational properties of atomically thin MoS2 layers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Alejandro P\\'erez-Rodr\\'iguez, Amador P\\'erez-Tom\\'as, Anatoliy Yaremko, Andres Castellanos-Gomez, Marcel Placidi, Markus Neuschitzer, Mirjana Dimitrievska, Moises Espindola-Rodriguez, Narcis Mestres, Simon L\\'opez-Marino, Veronica Bermudez, Victor Izquierdo-Roca, Xavier Fontan\\'e","submitted_at":"2015-06-10T09:15:17Z","abstract_excerpt":"In order to deepen in the knowledge of the vibrational properties of 2-dimensional MoS2 atomic layers, a complete and systematic Raman scattering analysis has been performed using both bulk single crystal MoS2 samples and atomically thin MoS2 layers. Raman spectra have been measured under non-resonant and resonant conditions using seven different excitation wavelengths from near-infrared (NIR) to ultraviolet (UV). These measurements have allowed to observe and identify 41 peaks, among which 22 have not been previously experimentally observed for this compound, characterizing the existence of d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.03228","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":"2026-05-18T01:37:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UchsmcBEfU0q/knGnrm2smZABox7whDkyZvV0tfbtd3kyl21/LEMpIpMTo5WOfDDZgXLFg2vXtz5eo9JyposCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T22:28:59.773695Z"},"content_sha256":"17e4c73576f368a1375d2cde1da9d7fc9746a5703e8913321c39c709f731cd43","schema_version":"1.0","event_id":"sha256:17e4c73576f368a1375d2cde1da9d7fc9746a5703e8913321c39c709f731cd43"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WGJU2ZTYK4KRHP2QUXTH3G6UHU/bundle.json","state_url":"https://pith.science/pith/WGJU2ZTYK4KRHP2QUXTH3G6UHU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WGJU2ZTYK4KRHP2QUXTH3G6UHU/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":"2026-06-01T22:28:59Z","links":{"resolver":"https://pith.science/pith/WGJU2ZTYK4KRHP2QUXTH3G6UHU","bundle":"https://pith.science/pith/WGJU2ZTYK4KRHP2QUXTH3G6UHU/bundle.json","state":"https://pith.science/pith/WGJU2ZTYK4KRHP2QUXTH3G6UHU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WGJU2ZTYK4KRHP2QUXTH3G6UHU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:WGJU2ZTYK4KRHP2QUXTH3G6UHU","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":"c636d45e0dc134e6d509ea846e3e54b22987929a2b5faf91e3b50a91e811ab9a","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-06-10T09:15:17Z","title_canon_sha256":"52204eaae5fb5472b6456304a433b308cc18b1502150416834dc5b5978743d0c"},"schema_version":"1.0","source":{"id":"1506.03228","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.03228","created_at":"2026-05-18T01:37:10Z"},{"alias_kind":"arxiv_version","alias_value":"1506.03228v1","created_at":"2026-05-18T01:37:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.03228","created_at":"2026-05-18T01:37:10Z"},{"alias_kind":"pith_short_12","alias_value":"WGJU2ZTYK4KR","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"WGJU2ZTYK4KRHP2Q","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"WGJU2ZTY","created_at":"2026-05-18T12:29:47Z"}],"graph_snapshots":[{"event_id":"sha256:17e4c73576f368a1375d2cde1da9d7fc9746a5703e8913321c39c709f731cd43","target":"graph","created_at":"2026-05-18T01:37:10Z","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":"In order to deepen in the knowledge of the vibrational properties of 2-dimensional MoS2 atomic layers, a complete and systematic Raman scattering analysis has been performed using both bulk single crystal MoS2 samples and atomically thin MoS2 layers. Raman spectra have been measured under non-resonant and resonant conditions using seven different excitation wavelengths from near-infrared (NIR) to ultraviolet (UV). These measurements have allowed to observe and identify 41 peaks, among which 22 have not been previously experimentally observed for this compound, characterizing the existence of d","authors_text":"Alejandro P\\'erez-Rodr\\'iguez, Amador P\\'erez-Tom\\'as, Anatoliy Yaremko, Andres Castellanos-Gomez, Marcel Placidi, Markus Neuschitzer, Mirjana Dimitrievska, Moises Espindola-Rodriguez, Narcis Mestres, Simon L\\'opez-Marino, Veronica Bermudez, Victor Izquierdo-Roca, Xavier Fontan\\'e","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-06-10T09:15:17Z","title":"Multiwavelength excitation Raman Scattering Analysis of bulk and 2 dimensional MoS2: Vibrational properties of atomically thin MoS2 layers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.03228","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":"sha256:56d6b860d9a9972895fa2152ae9471eb8b36d36cd399174bf18e5bfff6962df1","target":"record","created_at":"2026-05-18T01:37:10Z","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":"c636d45e0dc134e6d509ea846e3e54b22987929a2b5faf91e3b50a91e811ab9a","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-06-10T09:15:17Z","title_canon_sha256":"52204eaae5fb5472b6456304a433b308cc18b1502150416834dc5b5978743d0c"},"schema_version":"1.0","source":{"id":"1506.03228","kind":"arxiv","version":1}},"canonical_sha256":"b1934d6678571513bf50a5e67d9bd43d286d1e9b10c0b502aedd76e57d3f2d9d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b1934d6678571513bf50a5e67d9bd43d286d1e9b10c0b502aedd76e57d3f2d9d","first_computed_at":"2026-05-18T01:37:10.748946Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:37:10.748946Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xOyl4b0NGptor6yJmHmrb06m9QAzD3345HZHpCGLT0P19D7OIiDUi23xQoynsjaLJVk40ouB7CtRFL6cPEgkAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:37:10.749528Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.03228","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:56d6b860d9a9972895fa2152ae9471eb8b36d36cd399174bf18e5bfff6962df1","sha256:17e4c73576f368a1375d2cde1da9d7fc9746a5703e8913321c39c709f731cd43"],"state_sha256":"8c51ab6341eed52dd77f307e4698b2544c6ca4677eee3ea44c6e682270fe4856"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mLmILHeROyaH3jmXbCTqw+Bt2OxDkpfl+EX4IEneQLmqliJpmjQ7y9WQrB7syDr0X0o2NkA+XRqfllDjqFIxCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T22:28:59.775764Z","bundle_sha256":"8e22e4ab5e132bdda5494cf0956e2e01e047733da143f35a4b6686d54066974a"}}