{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:2EEOK2WEFW4SRRXPQICCUU5P3X","short_pith_number":"pith:2EEOK2WE","canonical_record":{"source":{"id":"2604.11474","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2026-04-13T13:44:55Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"4d5f4f826218e87b8369fc0db6261a14782c700e12672ba69634756e50bbd9fa","abstract_canon_sha256":"6df77fd885f84afa74928c9bc96cf29a612bf68733e93d5d80b1512242e3deab"},"schema_version":"1.0"},"canonical_sha256":"d108e56ac42db928c6ef82042a53afddecc4ebb29cef004f0fcf62290c2d9267","source":{"kind":"arxiv","id":"2604.11474","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2604.11474","created_at":"2026-05-21T02:05:02Z"},{"alias_kind":"arxiv_version","alias_value":"2604.11474v2","created_at":"2026-05-21T02:05:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2604.11474","created_at":"2026-05-21T02:05:02Z"},{"alias_kind":"pith_short_12","alias_value":"2EEOK2WEFW4S","created_at":"2026-05-21T02:05:02Z"},{"alias_kind":"pith_short_16","alias_value":"2EEOK2WEFW4SRRXP","created_at":"2026-05-21T02:05:02Z"},{"alias_kind":"pith_short_8","alias_value":"2EEOK2WE","created_at":"2026-05-21T02:05:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:2EEOK2WEFW4SRRXPQICCUU5P3X","target":"record","payload":{"canonical_record":{"source":{"id":"2604.11474","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2026-04-13T13:44:55Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"4d5f4f826218e87b8369fc0db6261a14782c700e12672ba69634756e50bbd9fa","abstract_canon_sha256":"6df77fd885f84afa74928c9bc96cf29a612bf68733e93d5d80b1512242e3deab"},"schema_version":"1.0"},"canonical_sha256":"d108e56ac42db928c6ef82042a53afddecc4ebb29cef004f0fcf62290c2d9267","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-21T02:05:02.784266Z","signature_b64":"O6qN7PbWckFyGD31t+REHhq3pSRjCoBI6p6/J+BYkhXYdgXawSFQ7XzDfJroCYCkf6P3qFy17Bg/TNpOapswAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d108e56ac42db928c6ef82042a53afddecc4ebb29cef004f0fcf62290c2d9267","last_reissued_at":"2026-05-21T02:05:02.783712Z","signature_status":"signed_v1","first_computed_at":"2026-05-21T02:05:02.783712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2604.11474","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":"2026-05-21T02:05:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rf65TsTN+CwbJRqhzUK8LW5i8xGPXpriIf/OFBaHjt7LGDdU/n/wj3tro4PvHrVlp4WDjb6U5zBZ5NGDxchaCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T21:43:35.663006Z"},"content_sha256":"265219428bfab1c82c28c34326e4983a8a351a25e318e84607b51ec104813a11","schema_version":"1.0","event_id":"sha256:265219428bfab1c82c28c34326e4983a8a351a25e318e84607b51ec104813a11"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:2EEOK2WEFW4SRRXPQICCUU5P3X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"`Seeing' the quantum ripples of spacetime","license":"http://creativecommons.org/licenses/by/4.0/","headline":"Charged oscillators in a pumped cavity absorb single gravitons while emitting photons.","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Soham Sen, Vlatko Vedral","submitted_at":"2026-04-13T13:44:55Z","abstract_excerpt":"We propose a novel way of detecting gravitons using emission of photons from charged array of quantum harmonic oscillators placed inside of a cavity while the cavity is being pumped with low frequency photons. We observe that when the detector is in its ground state, a single graviton is absorbed by the detector while it jumps a single energy level by simultaneously emitting a photon. We also observe that while the detector de-excites from an higher energy level, it spontaneously emits a high frequency graviton, by absorbing a single photon. This analytical outcome encourages us to propose a v"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"When the detector is in its ground state, a single graviton is absorbed by the detector while it jumps a single energy level by simultaneously emitting a photon; the reverse process occurs when the detector de-excites.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The interaction between the graviton field and the charged oscillators is treated via a perturbative Hamiltonian whose matrix elements are assumed to produce the stated single-graviton, single-photon transitions without higher-order corrections or decoherence dominating.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Charged quantum harmonic oscillators in a photon-pumped cavity can absorb a graviton while emitting a photon or emit a graviton while absorbing a photon, offering a simple model for a tabletop graviton detector.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Charged oscillators in a pumped cavity absorb single gravitons while emitting photons.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"10574894817b3c7fd6df5520eb262c0738b74953e1a9c203b81519b9221d8015"},"source":{"id":"2604.11474","kind":"arxiv","version":2},"verdict":{"id":"848a7cf4-6a3c-435a-8ca4-94e8da3b7074","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-10T15:56:08.488830Z","strongest_claim":"When the detector is in its ground state, a single graviton is absorbed by the detector while it jumps a single energy level by simultaneously emitting a photon; the reverse process occurs when the detector de-excites.","one_line_summary":"Charged quantum harmonic oscillators in a photon-pumped cavity can absorb a graviton while emitting a photon or emit a graviton while absorbing a photon, offering a simple model for a tabletop graviton detector.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The interaction between the graviton field and the charged oscillators is treated via a perturbative Hamiltonian whose matrix elements are assumed to produce the stated single-graviton, single-photon transitions without higher-order corrections or decoherence dominating.","pith_extraction_headline":"Charged oscillators in a pumped cavity absorb single gravitons while emitting photons."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2604.11474/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"848a7cf4-6a3c-435a-8ca4-94e8da3b7074"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-21T02:05:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IEWMQ9u+kUfmGatQBaeqIPpVKcTDZd/D1F7B8m0dDmVNvfUW+jO4MhBBCzX5hGt8a8iRP3alskZfcFaTbrYOCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T21:43:35.663568Z"},"content_sha256":"3cea638dd4803b5d120a9ab64ed8bbf430ac14e346c8a48c81eae1700fad41a7","schema_version":"1.0","event_id":"sha256:3cea638dd4803b5d120a9ab64ed8bbf430ac14e346c8a48c81eae1700fad41a7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2EEOK2WEFW4SRRXPQICCUU5P3X/bundle.json","state_url":"https://pith.science/pith/2EEOK2WEFW4SRRXPQICCUU5P3X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2EEOK2WEFW4SRRXPQICCUU5P3X/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":"2026-05-21T21:43:35Z","links":{"resolver":"https://pith.science/pith/2EEOK2WEFW4SRRXPQICCUU5P3X","bundle":"https://pith.science/pith/2EEOK2WEFW4SRRXPQICCUU5P3X/bundle.json","state":"https://pith.science/pith/2EEOK2WEFW4SRRXPQICCUU5P3X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2EEOK2WEFW4SRRXPQICCUU5P3X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:2EEOK2WEFW4SRRXPQICCUU5P3X","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":"6df77fd885f84afa74928c9bc96cf29a612bf68733e93d5d80b1512242e3deab","cross_cats_sorted":["gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2026-04-13T13:44:55Z","title_canon_sha256":"4d5f4f826218e87b8369fc0db6261a14782c700e12672ba69634756e50bbd9fa"},"schema_version":"1.0","source":{"id":"2604.11474","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2604.11474","created_at":"2026-05-21T02:05:02Z"},{"alias_kind":"arxiv_version","alias_value":"2604.11474v2","created_at":"2026-05-21T02:05:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2604.11474","created_at":"2026-05-21T02:05:02Z"},{"alias_kind":"pith_short_12","alias_value":"2EEOK2WEFW4S","created_at":"2026-05-21T02:05:02Z"},{"alias_kind":"pith_short_16","alias_value":"2EEOK2WEFW4SRRXP","created_at":"2026-05-21T02:05:02Z"},{"alias_kind":"pith_short_8","alias_value":"2EEOK2WE","created_at":"2026-05-21T02:05:02Z"}],"graph_snapshots":[{"event_id":"sha256:3cea638dd4803b5d120a9ab64ed8bbf430ac14e346c8a48c81eae1700fad41a7","target":"graph","created_at":"2026-05-21T02:05:02Z","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":4,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"When the detector is in its ground state, a single graviton is absorbed by the detector while it jumps a single energy level by simultaneously emitting a photon; the reverse process occurs when the detector de-excites."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"The interaction between the graviton field and the charged oscillators is treated via a perturbative Hamiltonian whose matrix elements are assumed to produce the stated single-graviton, single-photon transitions without higher-order corrections or decoherence dominating."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"Charged quantum harmonic oscillators in a photon-pumped cavity can absorb a graviton while emitting a photon or emit a graviton while absorbing a photon, offering a simple model for a tabletop graviton detector."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"Charged oscillators in a pumped cavity absorb single gravitons while emitting photons."}],"snapshot_sha256":"10574894817b3c7fd6df5520eb262c0738b74953e1a9c203b81519b9221d8015"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2604.11474/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose a novel way of detecting gravitons using emission of photons from charged array of quantum harmonic oscillators placed inside of a cavity while the cavity is being pumped with low frequency photons. We observe that when the detector is in its ground state, a single graviton is absorbed by the detector while it jumps a single energy level by simultaneously emitting a photon. We also observe that while the detector de-excites from an higher energy level, it spontaneously emits a high frequency graviton, by absorbing a single photon. This analytical outcome encourages us to propose a v","authors_text":"Soham Sen, Vlatko Vedral","cross_cats":["gr-qc"],"headline":"Charged oscillators in a pumped cavity absorb single gravitons while emitting photons.","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2026-04-13T13:44:55Z","title":"`Seeing' the quantum ripples of spacetime"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2604.11474","kind":"arxiv","version":2},"verdict":{"created_at":"2026-05-10T15:56:08.488830Z","id":"848a7cf4-6a3c-435a-8ca4-94e8da3b7074","model_set":{"reader":"grok-4.3"},"one_line_summary":"Charged quantum harmonic oscillators in a photon-pumped cavity can absorb a graviton while emitting a photon or emit a graviton while absorbing a photon, offering a simple model for a tabletop graviton detector.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"Charged oscillators in a pumped cavity absorb single gravitons while emitting photons.","strongest_claim":"When the detector is in its ground state, a single graviton is absorbed by the detector while it jumps a single energy level by simultaneously emitting a photon; the reverse process occurs when the detector de-excites.","weakest_assumption":"The interaction between the graviton field and the charged oscillators is treated via a perturbative Hamiltonian whose matrix elements are assumed to produce the stated single-graviton, single-photon transitions without higher-order corrections or decoherence dominating."}},"verdict_id":"848a7cf4-6a3c-435a-8ca4-94e8da3b7074"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:265219428bfab1c82c28c34326e4983a8a351a25e318e84607b51ec104813a11","target":"record","created_at":"2026-05-21T02:05:02Z","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":"6df77fd885f84afa74928c9bc96cf29a612bf68733e93d5d80b1512242e3deab","cross_cats_sorted":["gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-th","submitted_at":"2026-04-13T13:44:55Z","title_canon_sha256":"4d5f4f826218e87b8369fc0db6261a14782c700e12672ba69634756e50bbd9fa"},"schema_version":"1.0","source":{"id":"2604.11474","kind":"arxiv","version":2}},"canonical_sha256":"d108e56ac42db928c6ef82042a53afddecc4ebb29cef004f0fcf62290c2d9267","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d108e56ac42db928c6ef82042a53afddecc4ebb29cef004f0fcf62290c2d9267","first_computed_at":"2026-05-21T02:05:02.783712Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-21T02:05:02.783712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O6qN7PbWckFyGD31t+REHhq3pSRjCoBI6p6/J+BYkhXYdgXawSFQ7XzDfJroCYCkf6P3qFy17Bg/TNpOapswAQ==","signature_status":"signed_v1","signed_at":"2026-05-21T02:05:02.784266Z","signed_message":"canonical_sha256_bytes"},"source_id":"2604.11474","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:265219428bfab1c82c28c34326e4983a8a351a25e318e84607b51ec104813a11","sha256:3cea638dd4803b5d120a9ab64ed8bbf430ac14e346c8a48c81eae1700fad41a7"],"state_sha256":"2e6c8289cbf31b758fa029c063ad47d68a3be2102036328bdf626dd4484282f4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yMxItjGHSlaexORFkA6DxGPHsy7Q1txGkXKeKjAQom8bmKG3h7UvA376skvhWdqUAvd1KCkMC0dsqPWetE8YAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T21:43:35.666185Z","bundle_sha256":"f840b0417da9fed285eb61ff0744353160e0bafdf3f9f97be02995ba4eb3c622"}}