{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:JC47AUCUE3UINZ3RMTTPEMCPL4","short_pith_number":"pith:JC47AUCU","canonical_record":{"source":{"id":"physics/0703169","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.optics","submitted_at":"2007-03-16T10:21:25Z","cross_cats_sorted":[],"title_canon_sha256":"417fd96c2de77c703f5c0924b4e6f0cd9f775dbab539cedd265a48924889768b","abstract_canon_sha256":"fe5488e045a8cc3a950142345a5024950687c570b1ee3fad5b4556d87a6b8ddd"},"schema_version":"1.0"},"canonical_sha256":"48b9f0505426e886e77164e6f2304f5f348da563dbf1a5abf347ca45e66011c4","source":{"kind":"arxiv","id":"physics/0703169","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0703169","created_at":"2026-05-18T01:09:14Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0703169v1","created_at":"2026-05-18T01:09:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0703169","created_at":"2026-05-18T01:09:14Z"},{"alias_kind":"pith_short_12","alias_value":"JC47AUCUE3UI","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"JC47AUCUE3UINZ3R","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"JC47AUCU","created_at":"2026-05-18T12:25:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:JC47AUCUE3UINZ3RMTTPEMCPL4","target":"record","payload":{"canonical_record":{"source":{"id":"physics/0703169","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.optics","submitted_at":"2007-03-16T10:21:25Z","cross_cats_sorted":[],"title_canon_sha256":"417fd96c2de77c703f5c0924b4e6f0cd9f775dbab539cedd265a48924889768b","abstract_canon_sha256":"fe5488e045a8cc3a950142345a5024950687c570b1ee3fad5b4556d87a6b8ddd"},"schema_version":"1.0"},"canonical_sha256":"48b9f0505426e886e77164e6f2304f5f348da563dbf1a5abf347ca45e66011c4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:14.568879Z","signature_b64":"UNlEZmmpDEW9BNN3LFd3mTJU9jacavTj6uHjpSVsdxnIh4YwjzmZqwV5CUpsoGG71shIsTs97NS2hyctUZodDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"48b9f0505426e886e77164e6f2304f5f348da563dbf1a5abf347ca45e66011c4","last_reissued_at":"2026-05-18T01:09:14.568360Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:14.568360Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"physics/0703169","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":"2026-05-18T01:09:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wDN30xbPGDjRHy0KuAF1OEmbjw03TWwpYnNs5x19X2PZT4ptaL7IUs2TGPhL/dvcwSRZN9yVBlZOiw0wqxxCAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T02:00:56.716466Z"},"content_sha256":"70ea7e7ec3449746ab0718ece3fe71a048d2667a31d7cb3bfdbe16ff3cd297be","schema_version":"1.0","event_id":"sha256:70ea7e7ec3449746ab0718ece3fe71a048d2667a31d7cb3bfdbe16ff3cd297be"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:JC47AUCUE3UINZ3RMTTPEMCPL4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Femtosecond laser Fourier transform absorption spectroscopy","license":"","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Fr\\'ed\\'eric Druon (LCFIO), Guy Guelachvili (PPM), Julien Mandon (PPM), Nathalie Picqu\\'e (PPM), Patrick Georges (LCFIO)","submitted_at":"2007-03-16T10:21:25Z","abstract_excerpt":"A femtosecond mode-locked laser is used for the first time as a broadband infrared source for high resolution Fourier transform absorption spectroscopy. Demontration is made with a Cr^4+:YAG laser. The entire nu_1+nu_3 vibration-rotation band region of acetylene, observed after passing through a single pass 80-cm long cell, is simultaneously recorded between 1480 and 1600 nm, in 7.9 s with a signal to noise ratio equal to 1000. Two hot bands of the most abundant acetylene isotopologue and the n1+n3 band of the ^13C^12CH_2 are also present. The noise equivalent absorption coefficient at one sec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0703169","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":"2026-05-18T01:09:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wULgHMElnH0qv+iGewJofYHlkDlMo+/qpu36z2lGo2loO/tpSGz23UmMR443wChJFW0sSSti4iUoeDqAHMSwAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T02:00:56.716811Z"},"content_sha256":"3139f9897f91d79eef0c525e00ee6bf20c8117e895c224c3b0c427cd8d327e80","schema_version":"1.0","event_id":"sha256:3139f9897f91d79eef0c525e00ee6bf20c8117e895c224c3b0c427cd8d327e80"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JC47AUCUE3UINZ3RMTTPEMCPL4/bundle.json","state_url":"https://pith.science/pith/JC47AUCUE3UINZ3RMTTPEMCPL4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JC47AUCUE3UINZ3RMTTPEMCPL4/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":"2026-06-22T02:00:56Z","links":{"resolver":"https://pith.science/pith/JC47AUCUE3UINZ3RMTTPEMCPL4","bundle":"https://pith.science/pith/JC47AUCUE3UINZ3RMTTPEMCPL4/bundle.json","state":"https://pith.science/pith/JC47AUCUE3UINZ3RMTTPEMCPL4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JC47AUCUE3UINZ3RMTTPEMCPL4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:JC47AUCUE3UINZ3RMTTPEMCPL4","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":"fe5488e045a8cc3a950142345a5024950687c570b1ee3fad5b4556d87a6b8ddd","cross_cats_sorted":[],"license":"","primary_cat":"physics.optics","submitted_at":"2007-03-16T10:21:25Z","title_canon_sha256":"417fd96c2de77c703f5c0924b4e6f0cd9f775dbab539cedd265a48924889768b"},"schema_version":"1.0","source":{"id":"physics/0703169","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0703169","created_at":"2026-05-18T01:09:14Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0703169v1","created_at":"2026-05-18T01:09:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0703169","created_at":"2026-05-18T01:09:14Z"},{"alias_kind":"pith_short_12","alias_value":"JC47AUCUE3UI","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"JC47AUCUE3UINZ3R","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"JC47AUCU","created_at":"2026-05-18T12:25:55Z"}],"graph_snapshots":[{"event_id":"sha256:3139f9897f91d79eef0c525e00ee6bf20c8117e895c224c3b0c427cd8d327e80","target":"graph","created_at":"2026-05-18T01:09:14Z","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 femtosecond mode-locked laser is used for the first time as a broadband infrared source for high resolution Fourier transform absorption spectroscopy. Demontration is made with a Cr^4+:YAG laser. The entire nu_1+nu_3 vibration-rotation band region of acetylene, observed after passing through a single pass 80-cm long cell, is simultaneously recorded between 1480 and 1600 nm, in 7.9 s with a signal to noise ratio equal to 1000. Two hot bands of the most abundant acetylene isotopologue and the n1+n3 band of the ^13C^12CH_2 are also present. The noise equivalent absorption coefficient at one sec","authors_text":"Fr\\'ed\\'eric Druon (LCFIO), Guy Guelachvili (PPM), Julien Mandon (PPM), Nathalie Picqu\\'e (PPM), Patrick Georges (LCFIO)","cross_cats":[],"headline":"","license":"","primary_cat":"physics.optics","submitted_at":"2007-03-16T10:21:25Z","title":"Femtosecond laser Fourier transform absorption spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0703169","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":"sha256:70ea7e7ec3449746ab0718ece3fe71a048d2667a31d7cb3bfdbe16ff3cd297be","target":"record","created_at":"2026-05-18T01:09:14Z","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":"fe5488e045a8cc3a950142345a5024950687c570b1ee3fad5b4556d87a6b8ddd","cross_cats_sorted":[],"license":"","primary_cat":"physics.optics","submitted_at":"2007-03-16T10:21:25Z","title_canon_sha256":"417fd96c2de77c703f5c0924b4e6f0cd9f775dbab539cedd265a48924889768b"},"schema_version":"1.0","source":{"id":"physics/0703169","kind":"arxiv","version":1}},"canonical_sha256":"48b9f0505426e886e77164e6f2304f5f348da563dbf1a5abf347ca45e66011c4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"48b9f0505426e886e77164e6f2304f5f348da563dbf1a5abf347ca45e66011c4","first_computed_at":"2026-05-18T01:09:14.568360Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:14.568360Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UNlEZmmpDEW9BNN3LFd3mTJU9jacavTj6uHjpSVsdxnIh4YwjzmZqwV5CUpsoGG71shIsTs97NS2hyctUZodDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:14.568879Z","signed_message":"canonical_sha256_bytes"},"source_id":"physics/0703169","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:70ea7e7ec3449746ab0718ece3fe71a048d2667a31d7cb3bfdbe16ff3cd297be","sha256:3139f9897f91d79eef0c525e00ee6bf20c8117e895c224c3b0c427cd8d327e80"],"state_sha256":"13dab9b8266b623414f3c8d71cb1c2ff43c5edd626e10237581ac1218f287123"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gi1YcaOB/djRLx6WC/Xg/lsEZeCk432hgICU6RYcevLWB8jcRO+b5UFSkkAC/nrO5Hifbwa4zU5YDgQd8d0EDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T02:00:56.718726Z","bundle_sha256":"14ac671c0b39be9244f331cb0dac59ccba960dbf2741957a891acdc9d7c73e5f"}}