{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:YDJXTEOX6NEB6DUPEBN7ISEDFM","short_pith_number":"pith:YDJXTEOX","canonical_record":{"source":{"id":"1607.04410","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-07-15T08:00:27Z","cross_cats_sorted":[],"title_canon_sha256":"9389d52746424aecb297bc5325f6cf3363f20dc7bcb96c629e8efe62a615fca8","abstract_canon_sha256":"0d7a381d0b29a4fbed0f9a7fe392819d3dceb02d2adafe98a785c8c913f86d76"},"schema_version":"1.0"},"canonical_sha256":"c0d37991d7f3481f0e8f205bf448832b3d7c9180b85f2a359a6d5cf2a04bedd3","source":{"kind":"arxiv","id":"1607.04410","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.04410","created_at":"2026-05-18T00:52:23Z"},{"alias_kind":"arxiv_version","alias_value":"1607.04410v2","created_at":"2026-05-18T00:52:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.04410","created_at":"2026-05-18T00:52:23Z"},{"alias_kind":"pith_short_12","alias_value":"YDJXTEOX6NEB","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_16","alias_value":"YDJXTEOX6NEB6DUP","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_8","alias_value":"YDJXTEOX","created_at":"2026-05-18T12:30:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:YDJXTEOX6NEB6DUPEBN7ISEDFM","target":"record","payload":{"canonical_record":{"source":{"id":"1607.04410","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-07-15T08:00:27Z","cross_cats_sorted":[],"title_canon_sha256":"9389d52746424aecb297bc5325f6cf3363f20dc7bcb96c629e8efe62a615fca8","abstract_canon_sha256":"0d7a381d0b29a4fbed0f9a7fe392819d3dceb02d2adafe98a785c8c913f86d76"},"schema_version":"1.0"},"canonical_sha256":"c0d37991d7f3481f0e8f205bf448832b3d7c9180b85f2a359a6d5cf2a04bedd3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:52:23.060786Z","signature_b64":"E7ptQDLv7j334+ys96/2gxfh5INm5HDFmHgSl6t0x5LGgLhY5tftivBgn6SUIGPkZ0Pa7FCBPBMRNwJdaesaAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c0d37991d7f3481f0e8f205bf448832b3d7c9180b85f2a359a6d5cf2a04bedd3","last_reissued_at":"2026-05-18T00:52:23.060161Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:52:23.060161Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1607.04410","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":"2026-05-18T00:52:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7vqGoh4RgC9v1aki3TuaC9POlBY9+Yt5ZUDRpjgaEweyVBFeSIDjkng8iS7EMeewFD84xTu0nLHdtT6JxRNHAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T16:10:21.854994Z"},"content_sha256":"37e99638b306ff8985d291840bb2e31569b4318e27e7c085767f78015e086ad5","schema_version":"1.0","event_id":"sha256:37e99638b306ff8985d291840bb2e31569b4318e27e7c085767f78015e086ad5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:YDJXTEOX6NEB6DUPEBN7ISEDFM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Separating Pathways in Double-Quantum Optical Spectroscopy Reveals Excitonic Interactions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Jeffrey Davis, Jonathan Tollerud","submitted_at":"2016-07-15T08:00:27Z","abstract_excerpt":"Techniques for coherent multidimensional optical spectroscopy have been developed and utilised to understand many different processes, including energy transfer in photosynthesis and many-body effects in semiconductor nanostructures. Double-quantum 2D spectroscopy is one variation that has been particularly useful for understanding many-body effects. In condensed matter systems, however, there are often many competing signal pathways, which can make it difficult to isolate different contributions and retrieve quantitative information. Here, a means of separating overlapping pathways while main"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.04410","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":"2026-05-18T00:52:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M5uL+SNz5ty6bnRArP2GICbH2w5Tb3gTcUq6njYjmeC+uO6vrJKGpcNyqHB6qGyEDSAzI63YrlOq4h8TwVtSCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T16:10:21.855367Z"},"content_sha256":"829d6f3b375f891541b288ad8659fcf7648858aac6b50f0ae69975e463904a3d","schema_version":"1.0","event_id":"sha256:829d6f3b375f891541b288ad8659fcf7648858aac6b50f0ae69975e463904a3d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YDJXTEOX6NEB6DUPEBN7ISEDFM/bundle.json","state_url":"https://pith.science/pith/YDJXTEOX6NEB6DUPEBN7ISEDFM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YDJXTEOX6NEB6DUPEBN7ISEDFM/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":"2026-07-03T16:10:21Z","links":{"resolver":"https://pith.science/pith/YDJXTEOX6NEB6DUPEBN7ISEDFM","bundle":"https://pith.science/pith/YDJXTEOX6NEB6DUPEBN7ISEDFM/bundle.json","state":"https://pith.science/pith/YDJXTEOX6NEB6DUPEBN7ISEDFM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YDJXTEOX6NEB6DUPEBN7ISEDFM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:YDJXTEOX6NEB6DUPEBN7ISEDFM","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":"0d7a381d0b29a4fbed0f9a7fe392819d3dceb02d2adafe98a785c8c913f86d76","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-07-15T08:00:27Z","title_canon_sha256":"9389d52746424aecb297bc5325f6cf3363f20dc7bcb96c629e8efe62a615fca8"},"schema_version":"1.0","source":{"id":"1607.04410","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.04410","created_at":"2026-05-18T00:52:23Z"},{"alias_kind":"arxiv_version","alias_value":"1607.04410v2","created_at":"2026-05-18T00:52:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.04410","created_at":"2026-05-18T00:52:23Z"},{"alias_kind":"pith_short_12","alias_value":"YDJXTEOX6NEB","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_16","alias_value":"YDJXTEOX6NEB6DUP","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_8","alias_value":"YDJXTEOX","created_at":"2026-05-18T12:30:53Z"}],"graph_snapshots":[{"event_id":"sha256:829d6f3b375f891541b288ad8659fcf7648858aac6b50f0ae69975e463904a3d","target":"graph","created_at":"2026-05-18T00:52:23Z","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":"Techniques for coherent multidimensional optical spectroscopy have been developed and utilised to understand many different processes, including energy transfer in photosynthesis and many-body effects in semiconductor nanostructures. Double-quantum 2D spectroscopy is one variation that has been particularly useful for understanding many-body effects. In condensed matter systems, however, there are often many competing signal pathways, which can make it difficult to isolate different contributions and retrieve quantitative information. Here, a means of separating overlapping pathways while main","authors_text":"Jeffrey Davis, Jonathan Tollerud","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-07-15T08:00:27Z","title":"Separating Pathways in Double-Quantum Optical Spectroscopy Reveals Excitonic Interactions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.04410","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":"sha256:37e99638b306ff8985d291840bb2e31569b4318e27e7c085767f78015e086ad5","target":"record","created_at":"2026-05-18T00:52:23Z","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":"0d7a381d0b29a4fbed0f9a7fe392819d3dceb02d2adafe98a785c8c913f86d76","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2016-07-15T08:00:27Z","title_canon_sha256":"9389d52746424aecb297bc5325f6cf3363f20dc7bcb96c629e8efe62a615fca8"},"schema_version":"1.0","source":{"id":"1607.04410","kind":"arxiv","version":2}},"canonical_sha256":"c0d37991d7f3481f0e8f205bf448832b3d7c9180b85f2a359a6d5cf2a04bedd3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c0d37991d7f3481f0e8f205bf448832b3d7c9180b85f2a359a6d5cf2a04bedd3","first_computed_at":"2026-05-18T00:52:23.060161Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:52:23.060161Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"E7ptQDLv7j334+ys96/2gxfh5INm5HDFmHgSl6t0x5LGgLhY5tftivBgn6SUIGPkZ0Pa7FCBPBMRNwJdaesaAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:52:23.060786Z","signed_message":"canonical_sha256_bytes"},"source_id":"1607.04410","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:37e99638b306ff8985d291840bb2e31569b4318e27e7c085767f78015e086ad5","sha256:829d6f3b375f891541b288ad8659fcf7648858aac6b50f0ae69975e463904a3d"],"state_sha256":"787d70305ae8ca1e9e25c8a723afbb959a206ae957fc659eacf56af88f56f278"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D2s9sLRH2w9tf8+NGt3k7c7/+i5J4QEsUp7WOfV/5MGWu4nZxER7dYoBMLu+5+TthuxSwZwrV49JkPqJ98H9Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-03T16:10:21.857459Z","bundle_sha256":"788d3fec3772a3ac7daada1d62ce1ce4f41733fedd7096b3d2c107c2e87d0d80"}}