{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:HITSGYN6HFSMQEEF2WN2XWOFZW","short_pith_number":"pith:HITSGYN6","canonical_record":{"source":{"id":"1001.3865","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2010-01-21T18:54:15Z","cross_cats_sorted":[],"title_canon_sha256":"9f627cefbf7bb876dacac88ac9cd65c0f26fd8b9dab69d1009da1e64dfd34564","abstract_canon_sha256":"aba22bcec958e1b9990e8a7f7974541025c2e471de71c2c9c5813e98bb6198c3"},"schema_version":"1.0"},"canonical_sha256":"3a272361be3964c81085d59babd9c5cd8817f1577095e8d9999aac59435d6c87","source":{"kind":"arxiv","id":"1001.3865","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1001.3865","created_at":"2026-05-18T02:09:31Z"},{"alias_kind":"arxiv_version","alias_value":"1001.3865v2","created_at":"2026-05-18T02:09:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1001.3865","created_at":"2026-05-18T02:09:31Z"},{"alias_kind":"pith_short_12","alias_value":"HITSGYN6HFSM","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"HITSGYN6HFSMQEEF","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"HITSGYN6","created_at":"2026-05-18T12:26:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:HITSGYN6HFSMQEEF2WN2XWOFZW","target":"record","payload":{"canonical_record":{"source":{"id":"1001.3865","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2010-01-21T18:54:15Z","cross_cats_sorted":[],"title_canon_sha256":"9f627cefbf7bb876dacac88ac9cd65c0f26fd8b9dab69d1009da1e64dfd34564","abstract_canon_sha256":"aba22bcec958e1b9990e8a7f7974541025c2e471de71c2c9c5813e98bb6198c3"},"schema_version":"1.0"},"canonical_sha256":"3a272361be3964c81085d59babd9c5cd8817f1577095e8d9999aac59435d6c87","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:09:31.340362Z","signature_b64":"GFzxQTFg11jDGQZ+UbDO2TuwVb9xijLE+QiOyGrHAxhyWXplXDtcwv1JREU+a4I9t/T1NKSYXSLpsgVr9xZBAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3a272361be3964c81085d59babd9c5cd8817f1577095e8d9999aac59435d6c87","last_reissued_at":"2026-05-18T02:09:31.339812Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:09:31.339812Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1001.3865","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":"2026-05-18T02:09:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jCn0OBTRTKpcTHRDO1+qfiWlLNqDBblq/1VOaZSYQuYkaBPJ1RCEcJAvJJ48NXC7M81oLdvqCgRTRup7OrzZBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T12:45:31.774670Z"},"content_sha256":"700f0f6cf3758bd27ed645bacbbc089324abdf04c49bb07811fea1de834cb519","schema_version":"1.0","event_id":"sha256:700f0f6cf3758bd27ed645bacbbc089324abdf04c49bb07811fea1de834cb519"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:HITSGYN6HFSMQEEF2WN2XWOFZW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Coherent Dual Comb Spectroscopy at High Signal to Noise","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"I. Coddington, N. R. Newbury, W. C. Swann","submitted_at":"2010-01-21T18:54:15Z","abstract_excerpt":"Two frequency combs can be used to measure the full complex response of a sample in a configuration which can be alternatively viewed as the equivalent of a dispersive Fourier transform spectrometer, infrared time domain spectrometer, or a multiheterodyne laser spectrometer. This dual comb spectrometer retains the frequency accuracy and resolution inherent to the comb sources. We discuss, in detail, the specific design of our coherent dual-comb spectrometer and demonstrate the potential of this technique by measuring the first overtone vibration of hydrogen cyanide, centered at 194 THz (1545 n"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.3865","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":""},"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":"2026-05-18T02:09:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3kixHldNSX8zBXz6LMnvlzEegbA65SimUpFeIL1SC/ssKnlIN3tLZFRTOjBn9/rZKBVtlGMzLj9mE0DlCLqhDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T12:45:31.775031Z"},"content_sha256":"584da47511d52003b9d376c574e3f7ba2a60160fb1c9f92e70943b4915be61f7","schema_version":"1.0","event_id":"sha256:584da47511d52003b9d376c574e3f7ba2a60160fb1c9f92e70943b4915be61f7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HITSGYN6HFSMQEEF2WN2XWOFZW/bundle.json","state_url":"https://pith.science/pith/HITSGYN6HFSMQEEF2WN2XWOFZW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HITSGYN6HFSMQEEF2WN2XWOFZW/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":"2026-05-28T12:45:31Z","links":{"resolver":"https://pith.science/pith/HITSGYN6HFSMQEEF2WN2XWOFZW","bundle":"https://pith.science/pith/HITSGYN6HFSMQEEF2WN2XWOFZW/bundle.json","state":"https://pith.science/pith/HITSGYN6HFSMQEEF2WN2XWOFZW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HITSGYN6HFSMQEEF2WN2XWOFZW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:HITSGYN6HFSMQEEF2WN2XWOFZW","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":"aba22bcec958e1b9990e8a7f7974541025c2e471de71c2c9c5813e98bb6198c3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2010-01-21T18:54:15Z","title_canon_sha256":"9f627cefbf7bb876dacac88ac9cd65c0f26fd8b9dab69d1009da1e64dfd34564"},"schema_version":"1.0","source":{"id":"1001.3865","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1001.3865","created_at":"2026-05-18T02:09:31Z"},{"alias_kind":"arxiv_version","alias_value":"1001.3865v2","created_at":"2026-05-18T02:09:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1001.3865","created_at":"2026-05-18T02:09:31Z"},{"alias_kind":"pith_short_12","alias_value":"HITSGYN6HFSM","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"HITSGYN6HFSMQEEF","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"HITSGYN6","created_at":"2026-05-18T12:26:07Z"}],"graph_snapshots":[{"event_id":"sha256:584da47511d52003b9d376c574e3f7ba2a60160fb1c9f92e70943b4915be61f7","target":"graph","created_at":"2026-05-18T02:09:31Z","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":"Two frequency combs can be used to measure the full complex response of a sample in a configuration which can be alternatively viewed as the equivalent of a dispersive Fourier transform spectrometer, infrared time domain spectrometer, or a multiheterodyne laser spectrometer. This dual comb spectrometer retains the frequency accuracy and resolution inherent to the comb sources. We discuss, in detail, the specific design of our coherent dual-comb spectrometer and demonstrate the potential of this technique by measuring the first overtone vibration of hydrogen cyanide, centered at 194 THz (1545 n","authors_text":"I. Coddington, N. R. Newbury, W. C. Swann","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2010-01-21T18:54:15Z","title":"Coherent Dual Comb Spectroscopy at High Signal to Noise"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.3865","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":"sha256:700f0f6cf3758bd27ed645bacbbc089324abdf04c49bb07811fea1de834cb519","target":"record","created_at":"2026-05-18T02:09:31Z","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":"aba22bcec958e1b9990e8a7f7974541025c2e471de71c2c9c5813e98bb6198c3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2010-01-21T18:54:15Z","title_canon_sha256":"9f627cefbf7bb876dacac88ac9cd65c0f26fd8b9dab69d1009da1e64dfd34564"},"schema_version":"1.0","source":{"id":"1001.3865","kind":"arxiv","version":2}},"canonical_sha256":"3a272361be3964c81085d59babd9c5cd8817f1577095e8d9999aac59435d6c87","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3a272361be3964c81085d59babd9c5cd8817f1577095e8d9999aac59435d6c87","first_computed_at":"2026-05-18T02:09:31.339812Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:09:31.339812Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GFzxQTFg11jDGQZ+UbDO2TuwVb9xijLE+QiOyGrHAxhyWXplXDtcwv1JREU+a4I9t/T1NKSYXSLpsgVr9xZBAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:09:31.340362Z","signed_message":"canonical_sha256_bytes"},"source_id":"1001.3865","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:700f0f6cf3758bd27ed645bacbbc089324abdf04c49bb07811fea1de834cb519","sha256:584da47511d52003b9d376c574e3f7ba2a60160fb1c9f92e70943b4915be61f7"],"state_sha256":"fd72c0b8fd2747e3504f8187ba385c175d52a64a0bd84fbd925f872407196dca"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HJPPhabj7G5mg9Qq+olR872wlEeh1PCgbh4uRg+qKILc1xY5AhmtqsDTibVKqv/LwgnybuCFoGcV1TWawynBBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T12:45:31.777060Z","bundle_sha256":"742fb78b6569086b8542cb9aa7ec9025b78ab6598fff6acdaafb385b962d7d5a"}}