{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:7ELJN6DL6G6EXNIGXC5NUDM3EC","short_pith_number":"pith:7ELJN6DL","canonical_record":{"source":{"id":"1401.1542","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"physics.optics","submitted_at":"2014-01-07T23:21:09Z","cross_cats_sorted":[],"title_canon_sha256":"b3d2facdb950542f8bc5d0907a2a8d95cf872560b09964396ece2ecd13f5c893","abstract_canon_sha256":"dc4466dffc2903003dfff50e87ee7571de74614de40366591922efdbeb25f0a8"},"schema_version":"1.0"},"canonical_sha256":"f91696f86bf1bc4bb506b8bada0d9b20a8826f58a0bfb7aee0bf0ae781098fb3","source":{"kind":"arxiv","id":"1401.1542","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.1542","created_at":"2026-05-18T00:49:08Z"},{"alias_kind":"arxiv_version","alias_value":"1401.1542v1","created_at":"2026-05-18T00:49:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.1542","created_at":"2026-05-18T00:49:08Z"},{"alias_kind":"pith_short_12","alias_value":"7ELJN6DL6G6E","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"7ELJN6DL6G6EXNIG","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"7ELJN6DL","created_at":"2026-05-18T12:28:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:7ELJN6DL6G6EXNIGXC5NUDM3EC","target":"record","payload":{"canonical_record":{"source":{"id":"1401.1542","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"physics.optics","submitted_at":"2014-01-07T23:21:09Z","cross_cats_sorted":[],"title_canon_sha256":"b3d2facdb950542f8bc5d0907a2a8d95cf872560b09964396ece2ecd13f5c893","abstract_canon_sha256":"dc4466dffc2903003dfff50e87ee7571de74614de40366591922efdbeb25f0a8"},"schema_version":"1.0"},"canonical_sha256":"f91696f86bf1bc4bb506b8bada0d9b20a8826f58a0bfb7aee0bf0ae781098fb3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:49:08.801174Z","signature_b64":"9MsMLuIMpE9w/m+twUVF0EcAkRpoFtznrREBkvZx1BOUFyZY2OMYg8pwfc6YIcVOVBMw79EfDJ2IpK/joDtzCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f91696f86bf1bc4bb506b8bada0d9b20a8826f58a0bfb7aee0bf0ae781098fb3","last_reissued_at":"2026-05-18T00:49:08.800750Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:49:08.800750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1401.1542","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":"2026-05-18T00:49:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OeonWHDObtZ2xP5G1nsSumLQ98HRe/DWuaKtANkePnVrcKl10VCRm460F4laPX58hS5fhd6sByaWd8vM3pevAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:53:55.853757Z"},"content_sha256":"5bb6d08070dc7b10b72af69b5c00126837c24c8a09c7762fca8e9b646c1d9a0b","schema_version":"1.0","event_id":"sha256:5bb6d08070dc7b10b72af69b5c00126837c24c8a09c7762fca8e9b646c1d9a0b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:7ELJN6DL6G6EXNIGXC5NUDM3EC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optical phase-noise dynamics of Titanium:sapphire optical frequency combs","license":"http://creativecommons.org/licenses/publicdomain/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Leo Hollberg, Qudsia Quraishi, Scott Diddams","submitted_at":"2014-01-07T23:21:09Z","abstract_excerpt":"Stabilized optical frequency combs (OFC) can have remarkable levels of coherence across their broad spectral bandwidth. We study the scaling of the optical noise across hundreds of nanometers of optical spectra. We measure the residual phase noise between two OFC's (having offset frequencies $f^{(1)}_0 $ and $f^{(2)}_0$) referenced to a common cavity-stabilized narrow linewidth CW laser. Their relative offset frequency $ \\Delta f_0 = f^{(2)}_0 - f^{(1)}_0 $, which appears across their entire spectra, provides a convenient measure of the phase noise. By comparing $\\Delta f_0$ at different spect"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.1542","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":"2026-05-18T00:49:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5QswpyIqaduHzWGF+vv/wxDD0oPrFlTz+/VOH7HqsvnaRJYvP+nupFzHNrxOtAROd5TkR3HE7X6MXH8Pp9HpDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:53:55.854308Z"},"content_sha256":"6a6dd9693433dc4a8c8d184d995d3c288760d0c6c1b0c0249db4079b8d313e66","schema_version":"1.0","event_id":"sha256:6a6dd9693433dc4a8c8d184d995d3c288760d0c6c1b0c0249db4079b8d313e66"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7ELJN6DL6G6EXNIGXC5NUDM3EC/bundle.json","state_url":"https://pith.science/pith/7ELJN6DL6G6EXNIGXC5NUDM3EC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7ELJN6DL6G6EXNIGXC5NUDM3EC/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":"2026-05-25T19:53:55Z","links":{"resolver":"https://pith.science/pith/7ELJN6DL6G6EXNIGXC5NUDM3EC","bundle":"https://pith.science/pith/7ELJN6DL6G6EXNIGXC5NUDM3EC/bundle.json","state":"https://pith.science/pith/7ELJN6DL6G6EXNIGXC5NUDM3EC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7ELJN6DL6G6EXNIGXC5NUDM3EC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:7ELJN6DL6G6EXNIGXC5NUDM3EC","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":"dc4466dffc2903003dfff50e87ee7571de74614de40366591922efdbeb25f0a8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"physics.optics","submitted_at":"2014-01-07T23:21:09Z","title_canon_sha256":"b3d2facdb950542f8bc5d0907a2a8d95cf872560b09964396ece2ecd13f5c893"},"schema_version":"1.0","source":{"id":"1401.1542","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.1542","created_at":"2026-05-18T00:49:08Z"},{"alias_kind":"arxiv_version","alias_value":"1401.1542v1","created_at":"2026-05-18T00:49:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.1542","created_at":"2026-05-18T00:49:08Z"},{"alias_kind":"pith_short_12","alias_value":"7ELJN6DL6G6E","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"7ELJN6DL6G6EXNIG","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"7ELJN6DL","created_at":"2026-05-18T12:28:16Z"}],"graph_snapshots":[{"event_id":"sha256:6a6dd9693433dc4a8c8d184d995d3c288760d0c6c1b0c0249db4079b8d313e66","target":"graph","created_at":"2026-05-18T00:49:08Z","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":"Stabilized optical frequency combs (OFC) can have remarkable levels of coherence across their broad spectral bandwidth. We study the scaling of the optical noise across hundreds of nanometers of optical spectra. We measure the residual phase noise between two OFC's (having offset frequencies $f^{(1)}_0 $ and $f^{(2)}_0$) referenced to a common cavity-stabilized narrow linewidth CW laser. Their relative offset frequency $ \\Delta f_0 = f^{(2)}_0 - f^{(1)}_0 $, which appears across their entire spectra, provides a convenient measure of the phase noise. By comparing $\\Delta f_0$ at different spect","authors_text":"Leo Hollberg, Qudsia Quraishi, Scott Diddams","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"physics.optics","submitted_at":"2014-01-07T23:21:09Z","title":"Optical phase-noise dynamics of Titanium:sapphire optical frequency combs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.1542","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":"sha256:5bb6d08070dc7b10b72af69b5c00126837c24c8a09c7762fca8e9b646c1d9a0b","target":"record","created_at":"2026-05-18T00:49:08Z","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":"dc4466dffc2903003dfff50e87ee7571de74614de40366591922efdbeb25f0a8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"physics.optics","submitted_at":"2014-01-07T23:21:09Z","title_canon_sha256":"b3d2facdb950542f8bc5d0907a2a8d95cf872560b09964396ece2ecd13f5c893"},"schema_version":"1.0","source":{"id":"1401.1542","kind":"arxiv","version":1}},"canonical_sha256":"f91696f86bf1bc4bb506b8bada0d9b20a8826f58a0bfb7aee0bf0ae781098fb3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f91696f86bf1bc4bb506b8bada0d9b20a8826f58a0bfb7aee0bf0ae781098fb3","first_computed_at":"2026-05-18T00:49:08.800750Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:49:08.800750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9MsMLuIMpE9w/m+twUVF0EcAkRpoFtznrREBkvZx1BOUFyZY2OMYg8pwfc6YIcVOVBMw79EfDJ2IpK/joDtzCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:49:08.801174Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.1542","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5bb6d08070dc7b10b72af69b5c00126837c24c8a09c7762fca8e9b646c1d9a0b","sha256:6a6dd9693433dc4a8c8d184d995d3c288760d0c6c1b0c0249db4079b8d313e66"],"state_sha256":"57587e1b083755c29a80d867d3234614fb0f4195101ac577d1ece210b8f723fd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RPLhGEB/R48QUDUvViByyN5QFJsr6dME9MPqgAYBl00ka3ujs3eDPa9fQPdJCFPYaUQ2E4ljIW5lJLd78ChLDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T19:53:55.857739Z","bundle_sha256":"0bc96ea1a57d41a962c0127e959a6a61680600b78fa472b2349de940ca1191ee"}}