{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:MYUGSL2DU7S3AK7462QXXTNV6W","short_pith_number":"pith:MYUGSL2D","canonical_record":{"source":{"id":"1307.5545","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-07-21T17:02:05Z","cross_cats_sorted":[],"title_canon_sha256":"fde8f9f6780e286eac1596fc207cb6ee26e04a88d7bda659335302a3b29c17d7","abstract_canon_sha256":"3906465e1fae91e66df50423d21e1b09050009963a024114ece228a19d5962a0"},"schema_version":"1.0"},"canonical_sha256":"6628692f43a7e5b02bfcf6a17bcdb5f5a24040493866e0b1570c259d8413429c","source":{"kind":"arxiv","id":"1307.5545","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.5545","created_at":"2026-05-18T03:17:55Z"},{"alias_kind":"arxiv_version","alias_value":"1307.5545v1","created_at":"2026-05-18T03:17:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.5545","created_at":"2026-05-18T03:17:55Z"},{"alias_kind":"pith_short_12","alias_value":"MYUGSL2DU7S3","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"MYUGSL2DU7S3AK74","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"MYUGSL2D","created_at":"2026-05-18T12:27:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:MYUGSL2DU7S3AK7462QXXTNV6W","target":"record","payload":{"canonical_record":{"source":{"id":"1307.5545","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-07-21T17:02:05Z","cross_cats_sorted":[],"title_canon_sha256":"fde8f9f6780e286eac1596fc207cb6ee26e04a88d7bda659335302a3b29c17d7","abstract_canon_sha256":"3906465e1fae91e66df50423d21e1b09050009963a024114ece228a19d5962a0"},"schema_version":"1.0"},"canonical_sha256":"6628692f43a7e5b02bfcf6a17bcdb5f5a24040493866e0b1570c259d8413429c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:17:55.379401Z","signature_b64":"L0M2RNhonSk/NH99MOw4aa+HL7fB1mEpTPm9tWvTSBpHn7vXLxw46JcrdAVuVFBfyaXEibFtbIVJMLcNC4GCDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6628692f43a7e5b02bfcf6a17bcdb5f5a24040493866e0b1570c259d8413429c","last_reissued_at":"2026-05-18T03:17:55.378826Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:17:55.378826Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.5545","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":"2026-05-18T03:17:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4K0KNoO/iSRlUqCggjhCP+U0OObjR0fjv3wW8+qNLoEfLo3CV6ExGjUAexylywCQ92tQXBc/T8OmKjVfGOvGCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T00:22:45.110765Z"},"content_sha256":"c2dfc9f02ec808e8d436743fa9310e14969c85e48d3ec32313b3c02d92399af5","schema_version":"1.0","event_id":"sha256:c2dfc9f02ec808e8d436743fa9310e14969c85e48d3ec32313b3c02d92399af5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:MYUGSL2DU7S3AK7462QXXTNV6W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Influence of excitation frequency on Raman modes of In1-xGaxN thin films","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Dixit, J. S. Thakur, R. Naik, V. M. Naik","submitted_at":"2013-07-21T17:02:05Z","abstract_excerpt":"Low energy optical modes of MBE-grown In1-xGaxN thin films with different values of x are investigated using Raman spectroscopy. We also studied the influence of Raman excitation frequency using red and green lasers on scattering intensity of various Raman modes. For those In1-xGaxN alloys whose bandgap energy is close to the red laser, a huge enhancement in the intensities of A1(LO) mode and its 2A1(LO) replica is observed when excited with red laser as compared to the green laser excitation. We found that the energies of longitudinal optical modes (A1 (LO) and 2A1 (LO)) vary nonlinearly unli"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.5545","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":"2026-05-18T03:17:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zXJKsfthcoT2/+JQ606Ol3apzNtuDeHkJmZRp3ahICt8CQzkpLZAD3FF/zkyeonskhNj7wFCL3KlOllaj9HnAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T00:22:45.111114Z"},"content_sha256":"1abe1e223f977390c6cc729d9c4449531be1865d5474ac7cff46e66112b3383d","schema_version":"1.0","event_id":"sha256:1abe1e223f977390c6cc729d9c4449531be1865d5474ac7cff46e66112b3383d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MYUGSL2DU7S3AK7462QXXTNV6W/bundle.json","state_url":"https://pith.science/pith/MYUGSL2DU7S3AK7462QXXTNV6W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MYUGSL2DU7S3AK7462QXXTNV6W/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":"2026-05-28T00:22:45Z","links":{"resolver":"https://pith.science/pith/MYUGSL2DU7S3AK7462QXXTNV6W","bundle":"https://pith.science/pith/MYUGSL2DU7S3AK7462QXXTNV6W/bundle.json","state":"https://pith.science/pith/MYUGSL2DU7S3AK7462QXXTNV6W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MYUGSL2DU7S3AK7462QXXTNV6W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:MYUGSL2DU7S3AK7462QXXTNV6W","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":"3906465e1fae91e66df50423d21e1b09050009963a024114ece228a19d5962a0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-07-21T17:02:05Z","title_canon_sha256":"fde8f9f6780e286eac1596fc207cb6ee26e04a88d7bda659335302a3b29c17d7"},"schema_version":"1.0","source":{"id":"1307.5545","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.5545","created_at":"2026-05-18T03:17:55Z"},{"alias_kind":"arxiv_version","alias_value":"1307.5545v1","created_at":"2026-05-18T03:17:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.5545","created_at":"2026-05-18T03:17:55Z"},{"alias_kind":"pith_short_12","alias_value":"MYUGSL2DU7S3","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"MYUGSL2DU7S3AK74","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"MYUGSL2D","created_at":"2026-05-18T12:27:52Z"}],"graph_snapshots":[{"event_id":"sha256:1abe1e223f977390c6cc729d9c4449531be1865d5474ac7cff46e66112b3383d","target":"graph","created_at":"2026-05-18T03:17:55Z","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":"Low energy optical modes of MBE-grown In1-xGaxN thin films with different values of x are investigated using Raman spectroscopy. We also studied the influence of Raman excitation frequency using red and green lasers on scattering intensity of various Raman modes. For those In1-xGaxN alloys whose bandgap energy is close to the red laser, a huge enhancement in the intensities of A1(LO) mode and its 2A1(LO) replica is observed when excited with red laser as compared to the green laser excitation. We found that the energies of longitudinal optical modes (A1 (LO) and 2A1 (LO)) vary nonlinearly unli","authors_text":"A. Dixit, J. S. Thakur, R. Naik, V. M. Naik","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-07-21T17:02:05Z","title":"Influence of excitation frequency on Raman modes of In1-xGaxN thin films"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.5545","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:c2dfc9f02ec808e8d436743fa9310e14969c85e48d3ec32313b3c02d92399af5","target":"record","created_at":"2026-05-18T03:17:55Z","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":"3906465e1fae91e66df50423d21e1b09050009963a024114ece228a19d5962a0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-07-21T17:02:05Z","title_canon_sha256":"fde8f9f6780e286eac1596fc207cb6ee26e04a88d7bda659335302a3b29c17d7"},"schema_version":"1.0","source":{"id":"1307.5545","kind":"arxiv","version":1}},"canonical_sha256":"6628692f43a7e5b02bfcf6a17bcdb5f5a24040493866e0b1570c259d8413429c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6628692f43a7e5b02bfcf6a17bcdb5f5a24040493866e0b1570c259d8413429c","first_computed_at":"2026-05-18T03:17:55.378826Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:17:55.378826Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"L0M2RNhonSk/NH99MOw4aa+HL7fB1mEpTPm9tWvTSBpHn7vXLxw46JcrdAVuVFBfyaXEibFtbIVJMLcNC4GCDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:17:55.379401Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.5545","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c2dfc9f02ec808e8d436743fa9310e14969c85e48d3ec32313b3c02d92399af5","sha256:1abe1e223f977390c6cc729d9c4449531be1865d5474ac7cff46e66112b3383d"],"state_sha256":"a7341c0d4ed7f226b19aa0f9ac28f3f25709dd02fe75059652d8327ab7b58cb4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TBnqX9+A/fuOvCyWjle67gLbKnTCbA131PPfsCf9iTWC8wJNGuGuZZ2SVdZcpC4DiBv6igpo+5i2Ugh7EGzAAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T00:22:45.113405Z","bundle_sha256":"024d0cbd9e5c9bf2a9862a2e1246da5e84edad5dbd2ef9567a2f44b7ae5ddd24"}}